Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Fluid pressure

Subclass of:

188 - Brakes

188000000 - OPERATORS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
188152000 Road vehicle 89
188153000 Rail vehicle 8
188151000 Safety devices 1
20110198165BRAKING CONTROL APPARATUS FOR VEHICLE - A braking control apparatus for a vehicle includes four wheel braking apparatuses for applying a braking torque to wheels, a first hydraulic pressure generating apparatus generating a hydraulic pressure, a vacuum booster generating an assist force for assisting a breaking operation, a first hydraulic circuit, a second hydraulic circuit, a second hydraulic pressure generating apparatus generating an assist hydraulic pressure that is added to the hydraulic pressure, a detecting portion for detecting a braking operation variable, a target value determining portion for determining a first assist hydraulic pressure target value and a second assist hydraulic pressure target value to be both greater than zero over a range where the braking operation variable is greater than a predetermined value at which the assist force by the vacuum booster is started, and a pressure regulating portion for regulating the assist hydraulic pressure to mach the assist hydraulic pressure target value.08-18-2011
20120024642Brake Actuator & Control Valve Assembly - A brake actuator and control valve assembly, the brake actuator (02-02-2012
20110198166PNEUMATIC BRAKE CYLINDER - The invention relates to a pneumatic brake cylinder including a housing, a piston that can be moved in the housing and is used to transfer the pneumatic pressure to a brake, and a device for automatic adjustment in the event of wear of the brake linings, the device including a spindle, an adjusting nut, and a piston tube that can be engaged with the adjusting nut. According to the invention, a torque applied to the piston tube by the adjusting nut is introduced by the piston tube directly into elements connected to the housing in a fixed manner.08-18-2011
20110198164Braking System - A braking system including a source of pressurised fluid, an actuator, and a fastener for securing the source of pressurised fluid to the actuator, the fastener having a substantially hollow portion to enable fluid communication between the actuator and the source of pressurised fluid.08-18-2011
20080210500Hydraulic Regenerative Braking System For a Vehicle - One embodiment of a hydraulic regenerative braking system for a vehicle having at least one drive wheel includes first (09-04-2008
20110168505Braking System for a Utility Vehicle that can be Pneumatically Coupled to a Trailer, and Method for Operating such a Braking System in the Event of Defects - A braking system is provided for a commercial vehicle that can be pneumatically coupled to a trailer. The system includes at least one electronic control unit, and a valve device that can be electrically connected by the at least one electronic control unit. The at least one valve device builds up pressure for the trailer braking system when connected, causing the trailer to brake. A throttle is arranged in a trailer control line. The throttle limits a pressure drop at the control inlet of a relay valve in the event of a leakage downstream of the throttle. A method for controlling a brake system is also provided.07-14-2011
20100276234PUMP ELEMENT, HYDRAULIC BLOCK WITH PUMP ELEMENT, AND INSTALLATION METHOD - The invention relates to a pump element for installation in a pump bore of a hydraulic block, which includes a pump plunger, a restoring spring for the pump plunger, and an inlet valve having an inlet valve cover, in which a closing spring and a closing body are arranged. According to the invention, the inlet valve cover has a high pressure sealing section, which rests against the valve seat element in the axial direction with spring force support provided by the restoring spring. The valve seat element is positively connected to the pump plunger at least before installation of the pump element in the pump bore. Centering elements are provided for centering the inlet valve cover relative to the valve seat element. The invention further relates to a hydraulic block and to an installation method.11-04-2010
20080289916Cylinder apparatus and disk brake - A method of manufacturing a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. The cylinder apparatus includes a piston (11-27-2008
20100187051ROCKING BEARING OUTER RING, ROCKING BEARING, AIR DISC BRAKE DEVICE, AND FITTING STRUCTURE OF ROCKING BEARING OUTER RING - A rocking bearing outer ring (07-29-2010
20110108376BOLSTER MOUNTED BRAKE SYSTEM - A brake system includes a brake cylinder having a piston rod and a brake lever connecting the piston rod to a brake beam and a slack adjuster. An actuating lever is connected to the brake beam and the brake cylinder. A trigger of the slack adjuster is connected to the actuating lever. The actuating lever is pivotally and rotationally connected to the brake beam and swivelably connected to the brake cylinder. Also, a piston stoke indictor including an indicia positioned on a support structure of a brake cylinder to be adjacent the end of a portion of a brake piston at its extended position.05-12-2011
20100300818Shaft Holding System for Cryogenic Pumps or Expanders - A shaft holding system for cryogenic pumps or expanders comprising of a set of hydraulic brakes surrounding the shaft of turbomachinery. Fluid or gas is introduced into the bellows chamber of a brake assembly. The bellows chamber expands due to the increase in pressure, thus exerting a force on the piston of the brake assembly. The piston in turn exerts a force on a brake rod, which pushes a brake pad attached to the end of the brake rod against the shaft. A feed line supplies fluid or gas to the hydraulics of the brake assembly. Two or more brakes can be used to secure the shaft of the turbomachine. A turbomachine including more than one shaft can use a set of brakes for each shaft of the turbomachine.12-02-2010
20110162922Brake Force Generator for a Motor Vehicle Brake System Having a Support Device for a Resetting Spring - The invention relates to a brake force generator for a motor vehicle brake system, comprising a displaceable force input element connected or connectable to a brake pedal, a control valve actuable in accordance with a displacement of the force input element, a chamber arrangement disposed in a booster housing and controllable by means of the control valve and comprising at least one vacuum chamber and at least one working chamber, which are separated from one another by at least one movable wall connected to the control valve, and a force output element for supplying a brake force to a downstream brake system, wherein the control valve with the force output element is biased by a resetting spring into a normal position, wherein the resetting spring is supported by its one end against the control valve. In this brake force generator, for improving the assembly properties it is provided that a support ring is provided, against which the resetting spring is supported by its other end, wherein the support ring may be brought into supportive interaction with the booster housing.07-07-2011
20110162921Rest Position Adjuster for Brake Actuating Element - An adjustment device for the release position of an operation element of a brake. The device comprises an articulated rod hinged in a fulcrum and connected in rotation to the operation element. The articulated rod comprises an adjustment end provided with a pin having an adjustment hole at least partly threaded and engaged with a threaded portion of a push rod, operatively connected to operation means of the brake. The device comprises anti-rotation means, suitable for locking in rotation the push rod, relative to the adjustment axis.07-07-2011
20110186392HYDRAULIC DEVICE THAT COMMANDS AND ACTIONS SO AUTOMATIC THE BRAKE OF A PUMPING WINDMILL - Comprises a vertical cylinder whose rod of smaller diameter than the piston, is projected upwards out of the device to be linked to the brake mechanism of the mill, said hydraulic cylinder being enclosed within a cylindrical container larger diameter coaxial to define an annular chamber between them which acts as a deposit of oil that drives the piston displacement. To boost the oil stored in said annular chamber and transmitting hydraulic pressure to the piston, are used to using two suction pumps impellers single acting, located at the top of the set, which are activated by a rocker operated from the same pumping rod mill, while medium valve inserted in the oil circuit driven by said pumps single acting, causes the hydraulic cylinder piston moves the brake, when interrupted your back to the annular chamber. The medium valve inserted in the oil circuit driven pumps, is a directional valve contributor housed in a section of communication between the recirculation and return ducts into the annular chamber. Said directional valve contributor is associated with a float housed inside a cylindrical container provided on the water storage tank in communication with the interior.08-04-2011
20120031717Brake Actuator - A brake actuator (02-09-2012
20120247880Smooth Bore Dynamic Center Seal For Spring Brake Actuator - A sealing assembly and method of manufacturing a sealing assembly for a spring brake actuator having a dynamic center seal for sealing a first surface to a second surface. The sealing assembly has dynamic sealing elements that seal in a smooth hole or bore, where the sealing element or element stack is retained in the hole or bore on each end by a bearing for the center pushrod or center tube.10-04-2012
20110226568PNEUMATIC BRAKE CYLINDER - The invention relates to a pneumatic brake cylinder including a piston for transferring the pneumatic pressure to a brake, a pressure chamber defined by the piston and part of the inner wall of the brake cylinder, and a sealing ring sealing a gap between the piston and the inner wall of the brake cylinder. According to the invention, the sealing ring is vulcanised onto the piston.09-22-2011
20120085601SHUT-OFF VALVE FOR HYDRAULIC SYSTEM - A hydraulic system for an aircraft includes a master cylinder, a wheel brake, a pressure supply, a reservoir, and a shut-off valve in communication with the master cylinder, the wheel brake, the pressure supply and the reservoir. The shut-off valve can include a seal that is configured to preclude fluid flow between the pressure supply and the reservoir through the valve. The shut-off valve can be operable in a first position which blocks fluid flow between the pressure supply and the wheel brake through the valve and a second position which allows fluid flow between the pressure supply and the wheel brake through the valve. Fluid pressure from the master cylinder can control operation of the valve between the first position and the second position. Failure of the seal can result in fluid flow from the brake pressure supply toward the master cylinder.04-12-2012
20110005875Pneumatic brake system with safe drainage circuit and method of operating the same - A pneumatic brake system for a motor vehicle includes a compressed air system including a plurality of compressed air reservoirs containing compressed air. A service brake system in fluid communication with the compressed air system is operably engaged by application of the compressed air from the compressed air system. A parking brake system in fluid communication with the compressed air system is operably engaged upon the engagement of a spring brake component. A compressed air release system is coupled to the compressed air system and the parking brake system. The compressed air release system is configured to receive a command and in response to the command drain compressed air from the compressed air system if the parking brake system is engaged.01-13-2011
Entries
DocumentTitleDate
20110198165BRAKING CONTROL APPARATUS FOR VEHICLE - A braking control apparatus for a vehicle includes four wheel braking apparatuses for applying a braking torque to wheels, a first hydraulic pressure generating apparatus generating a hydraulic pressure, a vacuum booster generating an assist force for assisting a breaking operation, a first hydraulic circuit, a second hydraulic circuit, a second hydraulic pressure generating apparatus generating an assist hydraulic pressure that is added to the hydraulic pressure, a detecting portion for detecting a braking operation variable, a target value determining portion for determining a first assist hydraulic pressure target value and a second assist hydraulic pressure target value to be both greater than zero over a range where the braking operation variable is greater than a predetermined value at which the assist force by the vacuum booster is started, and a pressure regulating portion for regulating the assist hydraulic pressure to mach the assist hydraulic pressure target value.08-18-2011
20120024642Brake Actuator & Control Valve Assembly - A brake actuator and control valve assembly, the brake actuator (02-02-2012
20110198166PNEUMATIC BRAKE CYLINDER - The invention relates to a pneumatic brake cylinder including a housing, a piston that can be moved in the housing and is used to transfer the pneumatic pressure to a brake, and a device for automatic adjustment in the event of wear of the brake linings, the device including a spindle, an adjusting nut, and a piston tube that can be engaged with the adjusting nut. According to the invention, a torque applied to the piston tube by the adjusting nut is introduced by the piston tube directly into elements connected to the housing in a fixed manner.08-18-2011
20110198164Braking System - A braking system including a source of pressurised fluid, an actuator, and a fastener for securing the source of pressurised fluid to the actuator, the fastener having a substantially hollow portion to enable fluid communication between the actuator and the source of pressurised fluid.08-18-2011
20080210500Hydraulic Regenerative Braking System For a Vehicle - One embodiment of a hydraulic regenerative braking system for a vehicle having at least one drive wheel includes first (09-04-2008
20110168505Braking System for a Utility Vehicle that can be Pneumatically Coupled to a Trailer, and Method for Operating such a Braking System in the Event of Defects - A braking system is provided for a commercial vehicle that can be pneumatically coupled to a trailer. The system includes at least one electronic control unit, and a valve device that can be electrically connected by the at least one electronic control unit. The at least one valve device builds up pressure for the trailer braking system when connected, causing the trailer to brake. A throttle is arranged in a trailer control line. The throttle limits a pressure drop at the control inlet of a relay valve in the event of a leakage downstream of the throttle. A method for controlling a brake system is also provided.07-14-2011
20100276234PUMP ELEMENT, HYDRAULIC BLOCK WITH PUMP ELEMENT, AND INSTALLATION METHOD - The invention relates to a pump element for installation in a pump bore of a hydraulic block, which includes a pump plunger, a restoring spring for the pump plunger, and an inlet valve having an inlet valve cover, in which a closing spring and a closing body are arranged. According to the invention, the inlet valve cover has a high pressure sealing section, which rests against the valve seat element in the axial direction with spring force support provided by the restoring spring. The valve seat element is positively connected to the pump plunger at least before installation of the pump element in the pump bore. Centering elements are provided for centering the inlet valve cover relative to the valve seat element. The invention further relates to a hydraulic block and to an installation method.11-04-2010
20080289916Cylinder apparatus and disk brake - A method of manufacturing a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. The cylinder apparatus includes a piston (11-27-2008
20100187051ROCKING BEARING OUTER RING, ROCKING BEARING, AIR DISC BRAKE DEVICE, AND FITTING STRUCTURE OF ROCKING BEARING OUTER RING - A rocking bearing outer ring (07-29-2010
20110108376BOLSTER MOUNTED BRAKE SYSTEM - A brake system includes a brake cylinder having a piston rod and a brake lever connecting the piston rod to a brake beam and a slack adjuster. An actuating lever is connected to the brake beam and the brake cylinder. A trigger of the slack adjuster is connected to the actuating lever. The actuating lever is pivotally and rotationally connected to the brake beam and swivelably connected to the brake cylinder. Also, a piston stoke indictor including an indicia positioned on a support structure of a brake cylinder to be adjacent the end of a portion of a brake piston at its extended position.05-12-2011
20100300818Shaft Holding System for Cryogenic Pumps or Expanders - A shaft holding system for cryogenic pumps or expanders comprising of a set of hydraulic brakes surrounding the shaft of turbomachinery. Fluid or gas is introduced into the bellows chamber of a brake assembly. The bellows chamber expands due to the increase in pressure, thus exerting a force on the piston of the brake assembly. The piston in turn exerts a force on a brake rod, which pushes a brake pad attached to the end of the brake rod against the shaft. A feed line supplies fluid or gas to the hydraulics of the brake assembly. Two or more brakes can be used to secure the shaft of the turbomachine. A turbomachine including more than one shaft can use a set of brakes for each shaft of the turbomachine.12-02-2010
20110162922Brake Force Generator for a Motor Vehicle Brake System Having a Support Device for a Resetting Spring - The invention relates to a brake force generator for a motor vehicle brake system, comprising a displaceable force input element connected or connectable to a brake pedal, a control valve actuable in accordance with a displacement of the force input element, a chamber arrangement disposed in a booster housing and controllable by means of the control valve and comprising at least one vacuum chamber and at least one working chamber, which are separated from one another by at least one movable wall connected to the control valve, and a force output element for supplying a brake force to a downstream brake system, wherein the control valve with the force output element is biased by a resetting spring into a normal position, wherein the resetting spring is supported by its one end against the control valve. In this brake force generator, for improving the assembly properties it is provided that a support ring is provided, against which the resetting spring is supported by its other end, wherein the support ring may be brought into supportive interaction with the booster housing.07-07-2011
20110162921Rest Position Adjuster for Brake Actuating Element - An adjustment device for the release position of an operation element of a brake. The device comprises an articulated rod hinged in a fulcrum and connected in rotation to the operation element. The articulated rod comprises an adjustment end provided with a pin having an adjustment hole at least partly threaded and engaged with a threaded portion of a push rod, operatively connected to operation means of the brake. The device comprises anti-rotation means, suitable for locking in rotation the push rod, relative to the adjustment axis.07-07-2011
20110186392HYDRAULIC DEVICE THAT COMMANDS AND ACTIONS SO AUTOMATIC THE BRAKE OF A PUMPING WINDMILL - Comprises a vertical cylinder whose rod of smaller diameter than the piston, is projected upwards out of the device to be linked to the brake mechanism of the mill, said hydraulic cylinder being enclosed within a cylindrical container larger diameter coaxial to define an annular chamber between them which acts as a deposit of oil that drives the piston displacement. To boost the oil stored in said annular chamber and transmitting hydraulic pressure to the piston, are used to using two suction pumps impellers single acting, located at the top of the set, which are activated by a rocker operated from the same pumping rod mill, while medium valve inserted in the oil circuit driven by said pumps single acting, causes the hydraulic cylinder piston moves the brake, when interrupted your back to the annular chamber. The medium valve inserted in the oil circuit driven pumps, is a directional valve contributor housed in a section of communication between the recirculation and return ducts into the annular chamber. Said directional valve contributor is associated with a float housed inside a cylindrical container provided on the water storage tank in communication with the interior.08-04-2011
20120031717Brake Actuator - A brake actuator (02-09-2012
20120247880Smooth Bore Dynamic Center Seal For Spring Brake Actuator - A sealing assembly and method of manufacturing a sealing assembly for a spring brake actuator having a dynamic center seal for sealing a first surface to a second surface. The sealing assembly has dynamic sealing elements that seal in a smooth hole or bore, where the sealing element or element stack is retained in the hole or bore on each end by a bearing for the center pushrod or center tube.10-04-2012
20110226568PNEUMATIC BRAKE CYLINDER - The invention relates to a pneumatic brake cylinder including a piston for transferring the pneumatic pressure to a brake, a pressure chamber defined by the piston and part of the inner wall of the brake cylinder, and a sealing ring sealing a gap between the piston and the inner wall of the brake cylinder. According to the invention, the sealing ring is vulcanised onto the piston.09-22-2011
20120085601SHUT-OFF VALVE FOR HYDRAULIC SYSTEM - A hydraulic system for an aircraft includes a master cylinder, a wheel brake, a pressure supply, a reservoir, and a shut-off valve in communication with the master cylinder, the wheel brake, the pressure supply and the reservoir. The shut-off valve can include a seal that is configured to preclude fluid flow between the pressure supply and the reservoir through the valve. The shut-off valve can be operable in a first position which blocks fluid flow between the pressure supply and the wheel brake through the valve and a second position which allows fluid flow between the pressure supply and the wheel brake through the valve. Fluid pressure from the master cylinder can control operation of the valve between the first position and the second position. Failure of the seal can result in fluid flow from the brake pressure supply toward the master cylinder.04-12-2012
20110005875Pneumatic brake system with safe drainage circuit and method of operating the same - A pneumatic brake system for a motor vehicle includes a compressed air system including a plurality of compressed air reservoirs containing compressed air. A service brake system in fluid communication with the compressed air system is operably engaged by application of the compressed air from the compressed air system. A parking brake system in fluid communication with the compressed air system is operably engaged upon the engagement of a spring brake component. A compressed air release system is coupled to the compressed air system and the parking brake system. The compressed air release system is configured to receive a command and in response to the command drain compressed air from the compressed air system if the parking brake system is engaged.01-13-2011

Patent applications in class Fluid pressure

Patent applications in all subclasses Fluid pressure