초록 ▼

A lockup mechanism (9) in a torque converter (1) includes a clutch portion (23) capable of selective engagement and disengagement between a front cover (3) and a turbine (5), and a piston member (21) which forms a sealed oil chamber (B) together with the front cover (3) and selectively engages and d

A lockup mechanism (9) in a torque converter (1) includes a clutch portion (23) capable of selective engagement and disengagement between a front cover (3) and a turbine (5), and a piston member (21) which forms a sealed oil chamber (B) together with the front cover (3) and selectively engages and disengages the clutch portion (23) in accordance with the change in the oil pressure within the oil chamber (B).

대표청구항 ▼

[ What is claimed is:] [45.] A torque converter having a lockup mechanism comprising:a front cover;an impeller shell attached to said front cover defining a working oil chamber disposed therein;an impeller fixed to said impeller shell;a turbine disposed within said working oil chamber opposed to sai

[ What is claimed is:] [45.] A torque converter having a lockup mechanism comprising:a front cover;an impeller shell attached to said front cover defining a working oil chamber disposed therein;an impeller fixed to said impeller shell;a turbine disposed within said working oil chamber opposed to said impeller;a stator disposed between the radial inner portion of said impeller and the radial inner portion of said turbine; anda lockup mechanism disposed within said working oil chamber configured for selective engagement and disengagement of said front cover with said turbine, said lockup mechanism having a piston member disposed adjacent to said front cover and a plurality of clutch plates, said piston member being a disk-like plate, a radially inner portion of said piston member and a radial inner portion of said front cover defining a pressure chamber, said piston member selectively movable to and from an engaged position and a disengaged position with said clutch plates in response to changes in oil pressure within said pressure chamber, said clutch plates are disposed on the turbine side of the radially outer circumference of the piston member, whereinsaid clutch plates includes a drive plate and a driven plate; anda support plate which is disposed on a transmission side of said clutch plates, said support plate for supporting the load from said piston is adapted to be coupled to said front cover such that said support plate can neither rotate nor move axially relative to said front cover.