BRP-ROTAX GMBH & CO. KG Patent applications |
Patent application number | Title | Published |
20090293850 | SUPERCHARGED ENGINE - A supercharged internal combustion engine is disclosed which includes a supercharger operatively connected to the crankshaft via a clutch supported by an intermediate shaft such that torque variations are partially absorbed by the clutch. | 12-03-2009 |
20090188464 | PISTON FOR AN INTERNAL COMBUSTION ENGINE - A piston for an internal combustion engine is disclosed. The piston body has two pin bores for receiving a piston pin. At least one rib is disposed on the second side and extends outwardly therefrom. The at least one rib is aligned laterally between the two pin bores in a direction along the piston pin axis. The at least one rib has a longitudinal axis extending generally perpendicular to both the reciprocation axis of the piston and the piston pin axis. A piston having a boss extending approximately within the piston pin radius of the piston pin axis, and a piston having a boss generally following the contour of the piston pin are also disclosed. An engine having the piston is also disclosed. | 07-30-2009 |
20090107794 | CLUTCH ACTUATION SYSTEM - A multiple-disk clutch used in the power train of a motor vehicle for transmitting power from the crankshaft of an engine to a transmission input shaft is disclosed. The multiple-disk clutch comprises an actuation system supported at least in part by one of the inner and outer clutch member, and connected to a pressure member. The multiple-disk clutch is positioned within the multiple-disk clutch. The actuation system is adapted to overcome the biasing force of a spring or springs and release the compression force exerted by the pressure member on the driving and the driven friction disks such that the friction disks are spaced apart and power transmission through the multiple-disk clutch is interrupted. | 04-30-2009 |
20090107277 | REVERSE GEAR LOCKING MECHANISM FOR VEHICLE - A transmission for a vehicle is disclosed. The transmission has a reverse gear locking device that includes a rotating shaft having a longitudinal axis, the rotating shaft adapted for rotational movement about its longitudinal axis, and a lock connected to the rotating shaft and positioned in alignment with a stopper extending from the shift drum of the transmission. The initial position of the lock prevents the shift drum from engaging the reverse gear. A rotational movement of the rotating shaft tilts the lock out of alignment with the stopper and allows the shift drum to engage the reverse gear. | 04-30-2009 |
20090088942 | VALVE ASSEMBLY FOR A TWO-STROKE ENGINE - A two-stroke internal combustion engine is disclosed having first and second cylinders having respective exhaust ports. A valve assembly comprises at least one valve actuator. First and second valves are operatively connected to the at least one valve actuator. The first and second valves are each movable between a first position wherein the valve extends a first distance in the respective exhaust port and a second position wherein the valve extends a second distance in the respective exhaust port. A valve connecting member is rigidly connected to the first and second valves and movable therewith via a translational motion while maintaining a substantially constant angular orientation relative to the cylinder block. A position sensor has a first portion connected to the cylinder block and a second portion connected to the valve connecting member. An electronic control unit (ECU) electrically connected to the position sensor. | 04-02-2009 |
20090057433 | ENGINE ELECTRICAL GENERATOR COOLING DEVICE AND METHOD - A rotor for an electrical generator is disclosed, including a rotor body having a circular portion and a cylindrical portion coaxial with the circular portion. A generally cylindrical recess is defined by the cylindrical portion and the first side of the circular portion for receiving a stator. At least one first wall is at least partially spaced apart from the first side of the circular portion, defining at least one chamber therebetween. The chamber has an inlet. An aperture in the at least one first wall defines an outlet of the at least one chamber. At least one second wall extends outwardly from the first side of the circular portion. The at least one second wall has an end portion adjacent to the inlet of the at least one chamber. An internal combustion engine with an electrical generator and a method of cooling an electrical generator are also disclosed. | 03-05-2009 |
20090007878 | INTERNAL COMBUSTION ENGINE CYLINDER HEAD ASSEMBLY - An internal combustion engine has a cylinder head assembly having at least one intake valve and at least one exhaust valve, a pair of camshafts, cams disposed on the camshafts, and a pair of cam follower. Cam followers have a first end journaled on one of the cam follower shafts and a second end abutting an end of one of the at least one intake valve and the at least one exhaust valve. Spring bias the valves toward a closed position. A spark plug is also disposed in the cylinder head. A cylinder head assembly and a lubrication system of the cylinder head assembly are also disclosed. | 01-08-2009 |
20090007868 | INTERNAL COMBUSTION ENGINE CAM FOLLOWER ARRANGEMENT - An internal combustion engine has cylinder head assembly. First and second cams are disposed on a camshaft for rotation therewith. A first cam follower has a first end journaled on a cam follower shaft and a second end abutting an end of a first valve. A second cam follower has a first end journaled on the cam follower shaft and a second end abutting an end of a second valve. A spacer is disposed at least partially around the cam follower shaft. The spacer is disposed between the cam followers such that the first cam follower is disposed between the spacer and a camshaft support and the second cam follower is disposed between the spacer and another camshaft support. A cylinder head assembly, a method of accessing the valves, and embodiments providing for the supply of lubricant to the cam followers are also disclosed. | 01-08-2009 |
20090007858 | INTERNAL COMBUSTION ENGINE COOLING SYSTEM - An internal combustion engine has a crankcase, a crankshaft, a cylinder block, at least one piston, a cylinder head assembly, and a cooling system for cooling at least a portion of the engine. The cooling system has a first cooling jacket for cooling a first side of the cylinder block, a second cooling jacket for cooling a second side of the cylinder block, and a cylinder head cooling jacket for cooling the cylinder head assembly. A coolant inlet and a coolant outlet fluidly communicate with the first and second cooling jackets respectively. Coolant flowing in the cooling system flows from the coolant inlet to the first cooling jacket, then to the cylinder head cooling jacket, then to the second cooling jacket, and finally to the coolant outlet. A cylinder block, an engine cooling system, and a method of cooling an engine are also disclosed. | 01-08-2009 |
20080283322 | POWER TRANSMISSION WHEEL WITH TORSIONAL DAMPERS - A power transmission wheel having a hub and a rim is disclosed. The hub has a central annular portion for operatively engaging a power transmitting shaft. The rim has an inner annular portion and an outer annular portion for operatively engaging a flexible power transmitting element. The central annular portion is disposed inside the inner annular portion with a rolling-element bearing therebetween. At least one hub blade is disposed radially between the inner and outer annular portions. At least one rim blade extends radially from one of the inner and outer annular portions towards the other of the inner and outer annular portions. The power transmission wheel has at least two elastomeric dampers. Each damper is interposed between one of the at least one hub blade and one of the at least one rim blade. An engine and vehicles using the power transmission wheels are also disclosed. | 11-20-2008 |