摘要:
A torsional vibration reducing apparatus is provided. The torsional vibration reducing apparatus includes a rotating body having a rolling chamber, and a rolling body including a support shaft portion, a first flange portion, a second flange portion, a first corner portion, and a second corner portion. The support shaft portion is housed in the rolling chamber. The flange portions are located respectively at either end of the support shaft portion in an axial direction. A position defined by the support shaft portion and the first flange portion is the first corner portion, and a position defined by the support shaft portion and the second flange portion is the second corner portion. In a section of the rolling body that is along a central axis of the support shaft portion, sectional shapes of the first corner portion and the second corner portion differ from each other.
摘要:
A vehicle casing includes a metal frame (10; 40) and a resin cover (20; 50) that covers the metal frame (10; 40). The metal frame (10; 40) is configured such that vehicle components are accommodated inside the metal frame (10; 40). The vehicle components include a shaft member (31; 71) configured to rotate about a shaft center. The metal frame (10; 40) is provided with a bearing supporting boss portion (13, 16; 43) configured to support the shaft member (31; 71) such that the shaft member (31; 71) rotates with respect to the metal frame (10; 40). The bearing supporting boss portion (13, 16; 43) is disposed to be separate from an inner surface of the resin cover (20; 50) inside the resin cover (20; 50).
摘要:
In a cast product having a projecting portion that projects from a body portion and is integratedly cast with the body portion, a wall surface of the projecting portion is connected and integratedly cast with the body portion by means of a plurality of ribs. By this configuration, molten metal can easily flow up to a tip end of the projecting portion passing through the plurality of ribs from the body portion, and as a result, the generation of a casting cavity at the tip end of the projecting portion can be prevented. Furthermore, the strength of the projecting portion can be improved through reinforcement by means of the plurality of ribs.
摘要:
A torsional vibration reduction device that is provided inside of a fluid power transmitting device that has a driving side member that generates a fluid flow, and a driven side member that is driven by the fluid flow, includes a rolling element configured to move in a reciprocating manner according to a variation in torque; a retaining member that has a rolling chamber configured to house the rolling element in a manner that enables the rolling element to move in a reciprocating manner; and a housing configured to shield the rolling element and the rolling chamber from fluid inside of the fluid power transmitting device. The retaining member is enclosed and fixed inside the housing, and the housing is fixed to the driven side member.
摘要:
In a hydraulic variable valve timing mechanism comprising a lock pin that locks a vane rotor and a housing against relative rotation in the most retarding phase, a specified angle α is set so that release of the lock pin is started at a time when positive cam torque acts on the vane rotor. When the crank angle reaches the specified angle α 1 supply of hydraulic pressure to the advancing oil chamber is started to release the lock pin from the engagement with the lock hole, thereby enabling a reliable release of the lock pin prior to start of change of valve timing.
摘要:
To prevent response delay and to damp torsional vibration transmitted to a power transmission route. A vibration damper includes a first route R1 provided with a coil spring 43 as an elastic member, and a second route R2 provided with a sun gear 5s as an inertial body formed to be parallel as power transmission routes between an engine 10 to a transmission 20, and by switching the first route R1 and the second route R2 by a first clutch C1 and a second clutch C2, switchover to a state in which an inertial torque acts on the power transmission route by the sun gear 5s and a state in which the inertial torque is not generated is carried out.
摘要:
A torsional vibration reducing apparatus is provided. The torsional vibration reducing apparatus includes a rotating body having a rolling chamber, and a rolling body including a support shaft portion, a first flange portion, a second flange portion, a first corner portion, and a second corner portion. The support shaft portion is housed in the rolling chamber. The flange portions are located respectively at either end of the support shaft portion in an axial direction. A position defined by the support shaft portion and the first flange portion is the first corner portion, and a position defined by the support shaft portion and the second flange portion is the second corner portion. In a section of the rolling body that is along a central axis of the support shaft portion, sectional shapes of the first corner portion and the second corner portion differ from each other.
摘要:
A thrust bearing (41) is interposed between a flange unit 6a of an output shaft 6 and a side face (2g) of a sleeve unit (2d) of a sleeve unit (2d) of a case (2), a ball bearing (60) is interposed between an inner periphery (2e) of the sleeve unit (2d) and the outer periphery (6e) of the output shaft (6) so that a side face (61a) of an outer race (61) contacts a step portion (2f). In addition, a flange yoke (7), connected to a propeller shaft, is spline-engaged with the outer periphery of the output shaft (6), fixed on the output shaft (6), and, upon being pressed (in the X1 direction) by the propeller shaft, the flange yoke (7) contacts a side face (62a) of an inner race (62) of the ball bearing (60) via a shimwasher (8). Accordingly, the force occurring on the ball bearing (60) can be made to only the force to be applied (in the X1 direction). It becomes possible to realize higher durability and more compactness of the ball bearing (60) and also to support the axial position of the output shaft with high accuracy.
摘要:
To prevent response delay and to damp torsional vibration transmitted to a power transmission route. A vibration damper includes a first route R1 provided with a coil spring 43 as an elastic member, and a second route R2 provided with a sun gear 5s as an inertial body formed to be parallel as power transmission routes between an engine 10 to a transmission 20, and by switching the first route R1 and the second route R2 by a first clutch C1 and a second clutch C2, switchover to a state in which an inertial torque acts on the power transmission route by the sun gear 5s and a state in which the inertial torque is not generated is carried out.