摘要:
A mechanical system, comprising a support element, a pin extending along a first axis and comprising two opposite ends, each adapted to be fitted in the support element for radial retention of the pin relative to the first axis, and a roller element movable in rotation relative to the pin around the first axis. The mechanical system includes two ribs resting on either side of the ends for axial retention of the pin along the first axis. The mechanical system can be integrated into either an injection pump or a valve actuator.
摘要:
A mechanical system, comprising a tappet including a body, a support element defining two bores centered on a first axis, a pin comprising two opposite ends each adapted to be fitted in one of the two bores, and a roller element positioned between the two bores along the first axis and movable in rotation relative to the pin around the first axis. The support element is distinct from the body and fixed thereto, and the support element also comprises at least one antirotation device integrally formed thereto. The mechanical system can be integrated into an injection pump and/or a valve actuator.
摘要:
A mechanical system comprising: a tappet, including a body; an insert mounted in the body; a pin extending along a first axis; and a roller element movable in rotation relative to the pin around the first axis. The insert supports the pin, while the body supports the insert, along at least one first direction parallel to a second axis which is perpendicular to the first axis. The mechanical system can be integrated into an injection pump and/or a valve actuator.
摘要:
A torque transmission mechanism for an internal combustion engine, adapted to transmit a starting torque from a starter motor to a crankshaft of the internal combustion engine. The torque transmission mechanism includes a ring gear that transmits the starting torque, a one-way clutch disposed between the ring gear and the crankshaft, a bearing including a first ring coupled in rotation with the gear ring and a second ring coupled in rotation with the crankshaft and a front plate for coupling in rotation the crankshaft with the one-way clutch. The front plate is coupled in rotation with the crankshaft via the second ring of the bearing, by welding along a direction parallel to a central axis of the second ring of the bearing.
摘要:
A torque transmission mechanism, for a starter for an internal combustion engine, is adapted to transmit a starting torque from a starter motor to a crankshaft. The torque transmission mechanism comprises a ring gear that transmits the starting torque and a one-way clutch disposed between the ring gear and the crankshaft, this ring gear comprising a gear side portion to which the starting torque is transmitted from the starter motor via gear mesh, and a flange extending between the gear side portion and an inner ring of the one-way clutch. The flange comprises an inner section which forms the inner ring of the one-way clutch and an outer section fixed to the inner section and on which the gear side portion is fixed. The inner and outer sections of the flange are fixed together by a mechanical assembly other than welding.
摘要:
A method for manufacturing a torque transmission mechanism between a starter motor and a crankshaft of an internal combustion engine, comprising a one-way clutch including an outer ring fast in rotation with the crankshaft via a front plate. This method comprises the following steps: a) forging the outer ring out of carburizing steel, b) carburizing the outer ring, c) tempering the outer ring, d) grinding an inner surface of the outer ring, e) manufacturing the front plate out of standard low equivalent carbon content steel, and f) assembling the front plate and the outer ring.
摘要:
Turbocharger comprising a shaft, a housing, a turbine wheel and a compressor wheel mounted onto the shaft, at least one rolling bearing located between the shaft and the housing and comprising an inner ring, an outer ring and at least one row of rolling elements between raceways provided on the rings.The turbocharger comprises at least one insulation means radially located between the inner ring and the shaft, so as to thermally isolate the inner ring from the shaft.
摘要:
A torque transmission mechanism for an internal combustion engine, adapted to transmit a starting torque from a starter motor to a crankshaft of the internal combustion engine. A ring gear of the mechanism transmits the starting torque, and a one-way clutch (including an inner ring and an outer ring) disposed between the ring gear and the crankshaft. The ring gear comprises lubrication holes allowing lubricant to transfer from the internal combustion engine towards the one-way clutch. The torque transmission mechanism comprising at least one sealing element adapted to prevent lubricant from passing between an outer surface of the one-way clutch outer ring and a ring gear inner surface. The one-way clutch outer ring comprises a chamfered surface inclined with respect to a central axis of the mechanism and diverging respective to the central axis of the mechanism from the lubrication holes of the ring gear towards the sealing element.
摘要:
Turbocharger comprising a shaft, a housing, a turbine wheel and a compressor wheel mounted onto the shaft, at least one rolling bearing located between the shaft and the housing and comprising an inner ring, an outer ring and at least one row of rolling elements between raceways provided on the rings.Said turbocharger comprises at least one intermediate sleeve radially located between the shaft and the inner ring of the rolling bearing.
摘要:
The cage blank for a free wheel with at least one of rolling bodies and cams wherein the cage blank has two parts and comprises a main part defining cells for receiving the at least one of rolling bodies and cams. The cage blank includes a cover for closing the cells. Before the cover is assembled on the main part, each cell has, at an axial end, along a longitudinal axis of the main part, an opening for placing a rolling body or a cam.