Class / Patent application number | Description | Number of patent applications / Date published |
123188400 | Reciprocating valve | 58 |
20080276896 | Air Control Valve Apparatus For An Internal Combustion Engine - Air control valve apparatus ( | 11-13-2008 |
20090107446 | Apparatus for the operation of a work object - An apparatus for the operation of a work object, in which the work object has a chamber adapted to receive a work material for the performance of an operation of the work material and converting the work material into a resulting substance and the apparatus has a first passage adapted to supply the work material to the chamber; a second passage adapted to release the resulting substance from the chamber; and a pair of slideable members individually moveable relative to the first passage and the second passage to control the operation in the chamber. | 04-30-2009 |
20090272357 | ENGINE WITH A SLIDABLE VALVE - An engine has an auxiliary cylinder | 11-05-2009 |
20090288630 | Zero float valve for internal combustion engine and method of operation thereof - A valve apparatus for an internal combustion engine, the valve apparatus including: a main part having a wall section defining a valve cavity extending along a longitudinal length of the main part and an opening located in the wall section of the main part, the opening flow connected to the combustion chamber; an outer part configured and arranged so as to be reciprocally located in the valve cavity, the outer part having a wall section defining an inner passage extending along a longitudinal axis thereof; an inner part having a first end situated outside of the cavity and a second end situated within the cavity and the inner passage of the outer part, the inner part having a wall section defining an inner passage, a first opening at the first end, and one or more openings in that part of the walled section which is situated within the cavity. | 11-26-2009 |
20100006054 | Internal combustion engine having guillotine sliding valve - An internal combustion engine employing a valve regulating the passage of a fluid between the hollow interior of the combustion chamber and the atmosphere. The valve includes a valve body having a valve opening and a blade track passing around the valve opening. A guillotine blade slides linearly along the blade track between an open position in which said fluid may pass through the valve opening and a closed position in which the fluid is restricted from passing through the valve opening. A reciprocating driver moves the guillotine blade along the blade track when actuated by an electronic control signal. | 01-14-2010 |
20100116239 | Sliding valve assembly - A sliding valve assembly includes a valve body having a fluid conducting port adjacent to a fluid impervious surface. The actuator allows fluid to travel through the valve assembly and into a fluid blocking position where the fluid impervious surface obstructs the fluid from traveling through the valve assembly. First and second sealing assemblies include a primary seal ring, a secondary seal ring around the primary seal ring, and a spring forcing the primary seal ring against a sealing surface. As pressure in the system increases, this pressure is delivered to the sealing assemblies to force them against the sealing surfaces to enhance the sealing relationship. Cams and cam followers affixed to the valve body overcome the frictional forces of the sealing system and the valve body and valve housing to increase the efficiency of the valve assembly and the system in which the valve assembly is used. | 05-13-2010 |
20110056452 | Gravity-Activated Valve For Use In Supplying An Uninterrupted Supply Of Fluid - A gravity-activated valve for use in supplying an uninterrupted supply of fluid is disclosed. The valve includes a housing having an outlet, an inlet positioned below the outlet, and a sleeve disposed within the housing. The valve also includes a buoyant piston disposed within the sleeve, which is adapted to move between an open position and a closed position. The piston is positioned above the outlet when the piston is in the open position to allow fluid flow through the outlet and positioned proximate the outlet in the closed position to prevent fluid flow through the outlet. The piston is in the open position when the fluid level exceeds a predetermined fluid level and in the closed position when the fluid level is at or below the predetermined fluid level. The valve further includes a plurality of gaskets, which are adapted to create a seal between the piston and the sleeve. | 03-10-2011 |
20120060787 | CONTROL VALVE FOR A DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS-EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine. The control valve has a substantially hollow cylindrical valve housing, a non-return valve and an annular filter. The annular filter is arranged within the valve housing and the non-return valve has a closing body and a spring element. | 03-15-2012 |
20120073535 | CONTROL VALVE FOR CONTROLLING PRESSURE-MEDIUM FLOWS COMPRISING AN INTEGRATED CHECK VALVE - A control valve for controlling pressure medium flows, including: a valve housing having a hollow construction and having at least one feed connection, at least two working connections, and at least one discharge connection; a control piston held displaceably inside the valve housing, through which, dependent on position, the feed connection can be connected via at least one pressure medium line to the one or to the other working connection, while the respectively other working connection is connected via at least one second pressure medium line to the discharge connection. The control piston has a piston cavity and the first pressure medium line includes a feed opening allocated to the feed connection and a discharge opening allocated to the working connections, with each of these openings opening into the piston cavity. At least one check valve that can be hydraulically opened and that releases the first pressure medium line in the feed direction is provided, having a closing part that has a sealing surface, by which part a valve opening can be closed. The control valve has an elastically deformable closing part, such that the sealing surface thereof is movable, through elastic deformation of the closing part, into a closed position in which it lies against the valve opening in sealing fashion and an open position in which the valve opening is completely open, one of the openings of the control piston acting as valve opening. Alternatively, the closing part is mounted resiliently via at least one spring tongue. | 03-29-2012 |
20120111296 | CENTRAL VALVE OF A CAMSHAFT ADJUSTER OF AN INTERNAL COMBUSTION ENGINE - A central valve of a camshaft adjuster of an internal combustion engine, which has a valve housing, a control piston, and a mounting flange. The valve housing is arranged, at least in part, inside a receptacle inside the camshaft adjuster. The valve housing has at least one inflow connection, one outflow connection, and one working connection. The control piston is arranged axially slidable inside the valve housing. The pressure fluid, which flows to and from the camshaft adjuster, can be controlled by the suitable positioning of the control piston inside the valve housing. Also, the mounting flange is fixedly connected to a wall section of the receptacle, thus determining the axial position of the valve housing relative to the camshaft adjuster. | 05-10-2012 |
20120304953 | SWITCHABLE PRESSURE SUPPLY DEVICE - A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a housing having a housing interior; a displacement element arranged in the housing, which element can be displaced between a first end position and a second end position, the displacement element having a pressure surface which at least partially delimits a fluidically connectible accumulator chamber together with the wall of the housing interior, the accumulator chamber being connectible to a pressure source in a fluid-conducting manner; an energy accumulator which interacts with the displacement element, the displacement element being displaceable against the force of the energy accumulator from the first end position into the second end position under the effect of pressure applied to the accumulator chamber; a locking mechanism by which the displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, has a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the displacement element can be locked and unlocked in a first switching position of the switch element and cannot be locked and not unlocked in a second switching position of the switch element. | 12-06-2012 |
20140123926 | SUPPORT STRUCTURE FOR FUEL INJECTION VALVE - In a fuel injection valve support structure, a pair of contact surfaces are formed on an intermediate portion of the valve so as to be opposite to each other with a plane therebetween, the plane including a center axis of the valve and a center line of a coupler, the elastic support member includes a base plate placed on a second load receiving portion, an elastic piece extending from the base plate, coming into pressure contact with a fuel supply cap elastically, and biasing the valve against an engine by a reaction force resulting from the contact, and a pair of rotation locking pieces extending from the base plate and coming into contact with the respective contact surfaces to restrict rotation of the valve about the axis, and at least one of the contact surfaces has a positioning groove for elastically engaging corresponding one of the rotation locking pieces. | 05-08-2014 |
20150101559 | BUTTON FOR ROCKER ARM ASSEMBLY - The present disclosure provides a button for a rocker arm assembly. The button includes a head portion. The button includes a shank extending from the head portion along a longitudinal axis. The button further includes a base portion extending from the shank. The base portion has a bottom surface, wherein the bottom surface has a substantially concave profile. | 04-16-2015 |
123188200 | Poppet | 38 |
20090044778 | Pressure balanced engine valves - A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve. | 02-19-2009 |
20090084337 | Inlet port design to improve scavenging in overhead valve two-stroke engine - (In a Two Stroke engine, there is very little opportunity for scavenging residual exhaust gas, without using impractical exhaust pipe tuning.) Our design utilises momentum air-filling of the cylinder. We use overhead poppet valves, but we have positioned the inlet valve at an angle, and partly recessed it. The angled upstream side of the valve head and the wall of the recess direct airflow. The eminence positioned in the inlet port augments this by a Coanda effect. Air is thus directed alongside and under the exhaust gas, to promote scavenging and optimise volumetric efficiency. This also creates a combustion chamber in the coolest part of the cylinder head, an important consideration. Complex surfaces, liable to overheat, have been avoided. The design is simple and robust. | 04-02-2009 |
20090151685 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus according to an exemplary embodiment of the present invention includes an inner body contacting an input cam, an outer body connected with a valve, a lost motion spring disposed between the inner body and the outer body for supplying restoring force to the inner body, a return pin assembly supplying connecting force to the inner body and the outer body, and an operating portion selectively disconnecting the inner body from the outer body. | 06-18-2009 |
20090173307 | INTERNAL COMBUSTION ENGINE - Disclosed is an internal combustion engine (A), which has a valve overlap period (T) during which an intake valve ( | 07-09-2009 |
20100180851 | PISTON ENGINE COMPRISING MEMBER TO COVER BOTTOM FACE OF VALVE HEAD OF POPPET VALVE - To achieve high compression ratio and lower temperature of the exhaust poppet valve in an engine provided with a poppet valve on an extend part of a combustion chamber outside a main cylinder, disclosed is a valve cover having a cylindrical side face and upper face, an compression ring either the cylindrical side face and an inner wall of the sub cylinder, means to contact closely a bottom face of a poppet valve and the upper face of the valve cover, the upper part of the valve cover occupying most part of the combustion chamber facing with the bottom face, the valve cover moves along with the poppet valve when the poppet valve is lifted, a combination of overhead valves and the poppet valve including one intake valve and one exhaust valve, and total number of the overhead valve and poppet valve is not less than 3. | 07-22-2010 |
20110030642 | INLET VALVE, INTERNAL COMBUSTION ENGINE AND TRANSPORTATION APPARATUS INCLUDING THE SAME - An inlet valve includes a valve head including a valve surface located at a circumferential edge portion, and a single annular circumferential edge groove disposed radially inside and close to the valve surface in the circumferential edge portion. When intake air (an airflow) proceeds along a surface of the valve head and reaches the circumferential edge portion, only a portion thereof (a partial airflow) enters the circumferential edge groove and the remaining thereof (remaining partial airflow) passes by the circumferential edge groove. As the intake air (the partial airflow) having entered the circumferential edge groove forms a turbulent flow, the intake air surrounds the circumferential edge portion of the valve head and reaches below the circumferential edge portion of the valve head, thereby achieving an increase in volume of air taken into a combustion chamber. Further, because only a portion of intake air enters the circumferential edge groove, it is possible to suppress and minimize flow resistance applied to air taken into the combustion chamber from an inlet port. | 02-10-2011 |
20110155087 | Electric vehicle and on-board battery charging apparatus therefor - An electric vehicle and a range extender engine are shown including the controls to operate the same. | 06-30-2011 |
20110174259 | METHOD FOR PRODUCTION OF VALVE HEAD PORTION OF HOLLOW ENGINE VALVE AND HOLLOW ENGINE VALVE - Forming of a valve head portion ( | 07-21-2011 |
20110186000 | HOLLOW POPPET VALVE AND METHOD OF MANUFACTURING THE SAME - A hollow poppet valve has a stem portion provided at one end thereof with a tip portion; a cap portion; and a flared fillet portion formed between the stem portion and the cap portion, wherein at least a part of the stem portion that connects to the fillet portion is a thin hollow cylindrical member, and the cap member is welded to the fillet portion. The cap member is thin and has an arcuate axial cross section. It is laser-beam welded to the seat-abutment portion formed at the open end of the fillet portion such that a weld bead is formed along the inner periphery of the interface of the mated ends of the members. The weld bead adds an extra weld depth to the weld, which increases the modulus of section of the welded regions of the cap member and the fillet portion and enhances their welding strength. | 08-04-2011 |
20120186553 | EXHAUST VALVE - An exhaust valve includes: a shaft section; and a head section that is formed in one end of the shaft section and formed with a valve face that seats on a valve seat disposed in a cylinder head of an internal combustion engine, in which the shaft section has a shaft diameter of a constant diameter; the head section has a head diameter that is larger than the shaft diameter; and a thick shaft section that has a diameter smaller than the head diameter and larger than the shaft diameter is formed within a section between a connecting position that connects the shaft section with the head section and a position that is spaced apart from the head front surface opposite to the valve face in an axial direction by a distance that is approximately the same as the head diameter. | 07-26-2012 |
20120304952 | VALVE SEAT AND GASKET FOR EXHAUST BYPASS VALVE - An assembly can include a valve seat for an exhaust bypass valve of a serial turbocharger system where the valve seat includes a base portion and a wall portion that extends axially away from the base portion; and a gasket that includes a planar portion that defines a perimeter and a socket disposed interior to the perimeter, where the socket includes a valve seat surface axially recessed from the planar portion and configured to position the seat. In various examples, the valve seat is positioned in the socket of the gasket and fixed to the gasket. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 12-06-2012 |
20150354417 | VARIABLE INTAKE VALVE WITH SPRING - A variable intake valve apparatus may include a fixing pin, wherein a spring may be connected to an outer peripheral surface of the fixing pin, a driving mode portion configured for compressing the spring such that a protrusion formed at a distal end of the spring may be disposed variably depending on a selected driving mode, and a body portion engaged with the driving mode portion and configured for controlling an opening point in time of the intake valve apparatus depending on negative pressure of air on the selected driving mode. | 12-10-2015 |
123188300 | Material or structure | 26 |
20090114182 | ATOMIZATION VALVE - An atomization valve for use as an intake valve in an internal combustion engine that consists essentially of an elongated valve stem with two opposed ends, a valve head located at one of the two opposed ends and formed integrally with the valve stem in which the valve head having an outer rim and a tapered shoulder portion terminating adjacent the stem portion and the tapered shoulder portion having an upper surface bearing a plurality of grooves. | 05-07-2009 |
20100108012 | MOVEABLE VALVE SEALING BODY EXPOSED TO HOT GASES - A moveable valve sealing body, especially a valve sealing body of a gas exchange valve of an internal combustion engine, exposed to hot gases and comprising a sealing area that can be applied to a valve seat ring, enabling good heat dissipation outside an oil-lubricated guiding means connected to the sealing body. For this purpose, such a sealing body is characterised in that at least one surface region of the sealing body, which region being exposed to the hot gases, up to maximally directly on the sealing region of this sealing body, is composed respectively of at least one first and one second material ( | 05-06-2010 |
20100147247 | SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF - A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9% C, 0.2 to 1.3% Si, 0 to 0.45% Mn, 32.5 to 37.5% Cr, 13.5 to 17.5% Ni, 3.2 to 5.5% Mo, 0 to 2% Nb, 0 to 0.5% B, 0 to 2% Zr and 30 to 51% Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9% C, 0.2 to 0.5% Si, 0.2 to 0.4% Mn, 33.0 to 35.0% Cr, 15.5 to 17.5% Ni, 4.0 to 4.5% Mo, 0.7 to 0.9% Nb, 0.07 to 0.13% B, 0 to 0.05% Zr and 40 to 46% Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines. | 06-17-2010 |
20100192892 | Hybrid valve for internal combustion engines - A next generation hybrid valve concept for enhanced induction cycle function for internal combustion engines. Said hybrid valve effectively combining automatic pressure activated check valve function with traditional poppet valve function to create an effective low cost self regulating variable valve timing (VVT) system. Said hybrid valve consisting of a free floating annular ring seal which is affixed concentrically around a modified poppet valve seat or within an engine head seat insert configured with releasably sealable jet flow passage ways. | 08-05-2010 |
20110126791 | EXHAUST POPPET VALVE AND SOLUTION HEAT TREATMENT METHOD OF THE SAME - Object of the Invention The invention provides a forged exhaust poppet valve and a method of solution heat treating the same, in which only a predetermined portion of the valve is subjected to the solution heat treatment so as to provide the seat portion of the valve with satisfactory wear resistance, and a predetermined transitional neck-stem region with satisfactory high-temperature creep strength. | 06-02-2011 |
20110155088 | ENGINE VALVES - An engine valve according to the present teaching has a hot-forged head portion having an oxidized surface layer at a radially outer peripheral surface. The oxidized surface layer is formed during hot-forging of the head portion. | 06-30-2011 |
20110162612 | IRON-CHROMIUM ALLOY WITH IMPROVED COMPRESSIVE YIELD STRENGTH AND METHOD OF MAKING AND USE THEREOF - A chromium-iron alloy comprises in weight %, 1 to 3% C, 1 to 3% Si, up to 3% Ni, 25 to 35% Cr, 1.5 to 3% Mo, up to 2% W, 2.0 to 4.0% Nb, up to 3.0% V, up to 3.0% Ta, up to 1.2% B, up to 1% Mn and 43 to 64% Fe. In a preferred embodiment, the chromium-iron alloy comprises in weight %, 1.5 to 2.3% C, 1.6 to 2.3% Si, 0.2 to 2.2% Ni, 27 to 34% Cr, 1.7 to 2.5% Mo, 0.04 to 2% W, 2.2 to 3.6% Nb, up to 1% V, up to 3.0% Ta, up to 0.7% B, 0.1 to 0.6% Mn and 43 to 64% Fe. The chromium-iron alloy is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines. | 07-07-2011 |
20110168123 | ENGINE VALVE FOR IMPROVED OPERATING EFFICIENCY - An engine valve is provided with a valve head, a cap disposed opposite of the valve head; and a stem interposed between the valve head and the cap. The stem has a cylindrically shaped surface and at least one helical section embedded in the stem. The helical section includes alternating crests and roots in which the roots depend inwardly in a direction of a centerline of the valve such that the surface area of the stem is periodically interrupted by the helical section. The introduction of the valve with helical section in an engine increases engine efficiency and reduces fuel consumption. Methods of making and using the engine valve are also provided. | 07-14-2011 |
20120199092 | INTAKE VALVE OF INTERNAL COMBUSTION ENGINE - An intake valve of an internal combustion engine includes a valve body and a valve stem extending from a central portion of the valve body. The valve body includes a valve body framework portion and a valve body thick portion provided on an outer side of the valve body framework portion. The valve body framework portion and the valve stem are made of iron material and the valve body thick portion is made of aluminum alloy. | 08-09-2012 |
20130014720 | ENGINE VALVE DEVICEAANM Kim; Yong LaeAACI IncheonAACO KRAAGP Kim; Yong Lae Incheon KR - The present disclosure relates to an engine valve device including: engine valves; valve guides configured to guide a reciprocating motion of the engine valves; and stem seals fitting on one end of each of the valve guides and circumferentially covering the engine valves, in which the engine valves have micro-machined oil ports on the surfaces surrounded by the valve guides or the stem seals. | 01-17-2013 |
20130167791 | EXHAUST GAS RECIRCULATING VALVE FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation valve for an internal combustion engine includes a housing comprising an exhaust gas inlet and an exhaust gas outlet, and a valve closing body fastened to a valve rod. The valve rod is movable. A valve seat is arranged between the exhaust gas inlet and the exhaust gas outlet. A guide bushing comprising a first section guides the valve rod in the housing. A sealing ring is arranged at an end of the guide bushing remote from the valve closing body. The valve closing body is lowered onto the valve seat by a movement of the valve rod and lifted from the valve closing body by an opposite movement of the valve rod. A circumferential gap is formed between the valve rod and the guide bushing in the first section of the guide bushing directed toward the sealing ring. | 07-04-2013 |
20130220262 | VALVE FOR ENGINE AND METHOD FOR TREATING SURFACE THEREOF - The present invention provides a valve for an engine and a method for treating the surface thereof. The valve for the engine includes a buffer layer, an intermediate layer, a TiAlN/CrN first nanostructured multilayer, and a TiAlCN/CrCN second nanostructured multilayer. The buffer layer is coated over a surface of a stem part as a lowermost layer and is formed of Ti or Cr. The intermediate layer is coated over the buffer layer and is formed of CrN, TiN, or TiCN. The TiAlN/CrN first nanostructured multilayer is coated over the intermediate layer. The TiAlCN/CrCN second nanostructured multilayer is coated over the TiAlN/CrN first nanostructured multilayer as an uppermost layer. | 08-29-2013 |
20130220263 | VALVE SYSTEM FOR CONTROLLING THE CHARGE EXCHANGE - A valve system for controlling the charge exchange in an internal combustion engine may include a valve seat ring and a valve having a valve seat configured to form a sealing system with the valve seat ring, wherein the valve seat may be nitrocarburised. | 08-29-2013 |
20130291822 | VALVE SEAT MADE OF IRON-BASED SINTERED ALLOY - A valve seat of an iron-based sintered alloy having high wear resistance in a wide temperature range, which can be used in direct injection engines with improved fuel efficiency, low emission and high power, is obtained by limiting the amount of a solid lubricant dispersed in the matrix of the valve seat of an iron-based sintered alloy, and dispersing at least two types of hard particles having different hardnesses in the matrix, thereby providing high strength and self-lubrication, as well as improved wear resistance under no lubrication in a wide temperature range. | 11-07-2013 |
20130306019 | HIGH-TOUGHNESS COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME - A surface hardening material being excellent in impact resistance and having abrasion resistance is provided. Provided are: a high-toughness cobalt-based alloy containing 25.0 to 40.0 mass % of Cr, 0.5 to 12.0 mass % of a sum of W and/or Mo, 0.8 to 5.5 mass % of Si, and 0.5 to 2.5 mass % of B, 8.0 mass % or less of each of Fe, Ni, Mn, and Cu, and 0.3 mass % or less of C, the sum amount of Fe, Ni, Mn, and C being 10.0 mass % or less, and the remainder comprising 48.0 to 68.0 mass % of Co and unavoidable impurities; and an engine valve coated with the same. | 11-21-2013 |
20130312694 | INTAKE ENGINE VALVES - An intake engine valve may have a tapered portion positioned between a valve head and a valve stem tapering from a larger size to a smaller size in the direction of the valve stem. The valve stem may include a small diameter portion positioned between a guide stem portion And a stem end portion on the side of the tapered portion and having a diameter smaller than a diameter or diameters of the guide stem portion and the stem end portion. The guide stem portion may be guided by a valve guide of the engine. | 11-28-2013 |
20130319364 | TAPPET FOR A VALVE TRAIN OR A PUMP DRIVE AND METHOD OF MAKING A TAPPET - A tappet for a valve train or a pump drive particularly a cup tappet ( | 12-05-2013 |
20140014057 | HEAT TRANSFERRING ENGINE VALVE FOR FUEL CONSERVATION - A heat transferring engine valve for an internal combustion engine to increase the combustion efficiency and fuel economy of the engine. The heat transferring valve includes a valve head and a heat transferring member situated at the combustion surface of the valve head and extending toward the combustion chamber. The heat transferring member absorbs heat of combustion during the power stroke of an engine cycle and releases the heat into the combustion chamber during the compression stroke of a succeeding engine cycle, thereby raising the temperature of fuel at the start of combustion. A method for increasing the efficiency of combustion in an internal combustion engine by incorporating at least one heat transferring valve into the engine. | 01-16-2014 |
20140345557 | Thermal Spray Coated Engine Valve for Increased Wear Resistance - A valve for use in an internal combustion engine is disclosed. The valve includes a stem connected to a fillet disposed between the stem and a seat face. A port receives the stem and accommodates a seat insert that engages the seat face when the valve is in a closed position. The seat insert is fabricated from a non-cobalt-based alloy or an iron-based alloy and the seat face is coated with a cobalt-based alloy or a nickel-based alloy. The coating may be applied using a thermal spray process, such as HVOF. | 11-27-2014 |
20140360452 | METHOD FOR PRODUCING A BUILT HOLLOW VALVE - A method for producing a hollow valve of an internal combustion engine may include providing a hollow valve stem, a valve cone, and a valve bottom; pushing the valve cone over the valve stem via a press fit, wherein the valve cone includes an outer surface transitioning to the valve stem to define a testing surface; and welding the valve cone to the valve stem via at least one of a laser beam and an electron beam, wherein the welding occurs such that no melting of the outer surface in the region of the testing surface of the valve cone occurs. | 12-11-2014 |
20150136060 | VALVE FOR A VALVE DEVICE - A valve for a valve device may include a valve stem, which in an axial direction relative to a valve stem axis merges into a valve disc projecting from the valve stem radially. A valve cap may be included composed of a metal. The valve cap may be attached to an axial end portion of the valve stem facing away from the valve disc. The valve cap may cover a face end of the valve stem facing away from the valve disc and may envelope the axial end portion of the valve stem at least partially. | 05-21-2015 |
20150292370 | VALVE FOR INTERNAL COMBUSTION ENGINES - A valve device for an internal combustion engine may include a valve and a metallic tungsten matric coating containing at least one tungsten nanocarbide disposed on at least a portion of the valve via a chemical vapor deposition (CVD) process. The coating may include a thickness ranging from 5 μm to 150 μm and a hardness between 500 HV and 2000 HV. | 10-15-2015 |
20150308303 | INTAKE VALVE FOR ENGINE - An intake valve for an engine supplies an intake gas to a combustion chamber of the engine, and an adiabatic coating layer including a polyamideimide resin and an aerogel dispersed in the polyamideimide resin and having thermal conductivity of 0.60 W/m or less may be formed on a surface portion that comes into contact with a flame during operation of the engine. | 10-29-2015 |
20150377089 | VALVE FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR OBTAINING A VALVE - A valve for an internal combustion engine may include a ferrous body having a neck. At least one area of the neck may include a surface layer with a thickness of up to 300 μm. The valve may also be provided with at least 17% solubilized metallic chromium, which may be obtained by an application of a surface melting treatment. | 12-31-2015 |
20160102387 | ALLOY POWDER FOR OVERLAY WELDING, AND WELD OVERLAY ALLOY MEMBER AND ENGINE VALVE OBTAINED USING THE SAME - According the present invention, an alloy powder for overlay welding that prevents generation of gas defects in a weld overlay alloy in order to improve the toughness and wear resistance of the weld overlay alloy is provided. The alloy powder is an alloy powder for overlay welding on a steel surface containing nitrogen, which is characterized in that it contains 30% to 45% by mass of Mo, 10% to 30% by mass of Ni, 0.2% to 0.6% by mass of C, and 0.30% to 2.0% by mass of Al, with the balance made up of incidental impurities and Co. | 04-14-2016 |
20170234175 | HOLLOW ENGINE VALVE AND MANUFACTURING METHOD THEREFOR | 08-17-2017 |
123188500 | Sleeve | 7 |
20100012071 | Sliding valve aspiration system - An internal combustion engine uses separate, tubular and hollow reciprocating sleeve valves that open and close intake and exhaust passageways for improved aspiration. The sliding sleeve valves are disposed within sleeves horizontally disposed within a modified head secured above the combustion chamber. The valves are driven in a path normal to the engine pistons by an independent crankshaft that is rotated through an external pulley driven by the engine crankshaft. Fluid flow occurs through the valve interior and through ports dynamically positioned above the compression cylinder, proximate aligned sleeve and head ports. Sleeve ports are separated by bridges that maintain valve rings in compression during reciprocation to prevent damage. Each valve body has a reduced diameter midsection forming a relief annulus that distributes shearing pressures about the circumference of the valve. High pressure gas is confined between axially spaced apart, stepped sealing rings that prevent gases from flowing axially about the valve exterior. | 01-21-2010 |
20100212622 | SLEEVE VALVE ASSEMBLY - A sleeve valve assembly. The assembly includes a valve seat, a sleeve valve and an oil path-defining piece. The sleeve valve includes a distal end with a cavity. The distal end contacts the valve seat when the sleeve valve is located in a closed position. The oil path-defining piece includes an inlet port, an outlet port and a plurality of cooling passages. The flange of the sleeve valve is slidably in contact with the oil path-defining piece such that cooling fluid travelling into the inlet port and through the cooling passages enters into the cavity before exiting out the exit port. | 08-26-2010 |
20110283962 | COMPOUND DRIVE FOR THE SLEEVE VALVE OF AN ENGINE - A drive train for the sleeve of a sleeve valve engine has a pair of drives imparting compound motion to the sleeve which gives improved port opening and closing. One drive uses a engine driven first gear to give eccentric motion to the sleeve by a cam and follower. The other drive uses an engine driven second gear to give a small simultaneous rotation to the sleeve by an eccentric pin during a split sleeve. One drive allows axial response without preventing rotational response from the other drive. The sleeve path allows tall narrow ports which allow the piston rings to be nearer the piston crown and this reduces emissions. | 11-24-2011 |
20120085309 | SEALING OF SLEEVE VALVES - A sleeve valve with a valve body that at least partially encircles at least one piston that moves in a reciprocating manner can, at least partially define with the at least one piston a combustion chamber of an internal combustion engine. A valve actuation mechanism can move the sleeve valve between an open position and a closed position to control flow through a port of the internal combustion engine. The sealing edge of the sleeve valve can be urged against a valve seat by an urging force generated by the valve actuation mechanism when the sleeve valve is moved to the closed position. At least one of the sleeve valve and the valve seat can include a valve assistance feature that assists the valve actuation mechanism in resisting forces generated by the internal combustion engine in opposition to the urging force. Related articles, systems, and methods are described. | 04-12-2012 |
20120192827 | Sliding Valve Aspiration - Multi-section sleeve valves for internal combustion engines for improved aspiration. An open connecting rod section is separated from an internal, tubular passageway by a closed wall. A port section proximate the wall defines valve ports. A midsection borders the port section, and an open section adjacent the midsection is in fluid flow communication with the tubular passageway. The lower-diameter midsection forms a relief annulus between the valve and the tunnel or sleeve in which the valve is disposed. Fluid flow occurs through the valve interior and through ports dynamically positioned above the compression cylinder, proximate aligned sleeve and head ports. Sleeve ports are separated by bridges that maintain valve rings in compression during reciprocation to prevent damage. High pressure gas is confined between axially spaced apart, stepped sealing rings that prevent gases from flowing axially about the valve exterior. | 08-02-2012 |
20120298065 | ENGINE - An internal combustion engine comprises a movable piston ( | 11-29-2012 |
20140373802 | SLEEVE VALVE OIL SEAL - Leakage of a liquid (e.g. a coolant and/or a lubricant) past a sleeve valve to a port in communication with a combustion chamber of an internal combustion engine can be prevented by use of a substantially ring-shaped seal, which can be carried on the sleeve valve or disposed on a stationary part of the internal combustion engine. | 12-25-2014 |