Automatic transmission
AssigneeMazda Motor Corporation
InventorsKaori Sako, Tatsutoshi Mizobe, Shinya Kamada
Life of this patent
Estimating the term…
Abstract
An automatic transmission is provided with a brake device provided with a rotatable rotation-side friction plate and a non-rotatable fixed-side friction plate; a transmission case which accommodates the brake device; a lubrication oil supply section which supplies lubrication oil introduced into the transmission case to an upper portion of the brake device; and a lubrication oil discharge section disposed below the brake device, and configured to discharge lubrication oil supplied from the lubrication oil supply section to the brake device.
Claims20
An automatic transmission comprising:
- a brake device including a rotatable rotation-side friction plate interconnected with a predetermined rotation element, and a non-rotatable fixed-side friction plate disposed to face the rotation-side friction plate, the brake device being switchable between an engaged state where the friction plates are brought into pressing contact with each other, and a released state where the engaged state is released;
- a transmission case which accommodates the brake device;
- a lubrication oil supply section which supplies lubrication oil introduced into the transmission case to an upper portion of the brake device;
- and
- a lubrication oil discharge section disposed below the brake device, and configured to discharge lubrication oil supplied from the lubrication oil supply section to the brake device.
An automatic transmission comprising:
- a brake device including a rotatable rotation-side friction plate interconnected with a predetermined rotation element, and a non-rotatable fixed-side friction plate disposed to face the rotation-side friction plate, the brake device being switchable between an engaged state where the friction plates are brought into pressing contact with each other, and a released state where the engaged state is released;
- a transmission case which accommodates the brake device;
- a lubrication oil flow section through which lubrication oil introduced into the transmission case is allowed to flow;
- a lubrication oil supply section which supplies lubrication oil within the lubrication oil flow section to an upper portion of the brake device;
- and
- an engagement hydraulic chamber to which a hydraulic pressure for use in engaging the brake device is supplied, wherein
- the lubrication oil flow section is disposed on a side opposite to the engagement hydraulic chamber with respect to the brake device.
Dependencies are inferred from the claim text.