Abstract: A sealing arrangement for a pressurizing-agent-operable control device of a clutch arrangement, for sealing a chamber which is pressurizable with a pressurizing agent, assigned to the clutch arrangement, from the interior space of the clutch arrangement; comprising at least one elastic sealing device. The sealing device is guided on at least one sheet metal element, which is attached to an element that delimits the chamber which is pressurizable with a pressurizing agent. A double clutch arrangement having a sealing arrangement.

Abstract: A torque transmitting device for transmitting torque between a first and second members includes an annular piston that defines an axis and an apply plate translatable along the axis between an unengaged position and an engaged position. The apply plate has a first end disposed radially inward of a second end and is in contact with the piston. An apply disc is rotationally coupled to the first member and is translatable between unengaged and engaged positions. The apply disc is disposed radially outward of the piston. A backing disc is rotationally and axially fixed to the first member and disposed radially outward of the piston. A friction plate is disposed between the apply disc and the backing disc. The friction plate has a first end disposed radially inward of a second end and is rotationally coupled to the second member. The friction plate is disposed radially outward of the piston.

Abstract: A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. A hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.

Abstract: A seal structure provided in an inner mechanism of an automatic shift gear includes: a housing; a piston; a canceller; a return spring; an opponent member which is disposed opposite to a centrifugal canceller chamber in the canceller and forms an oil path between the opponent member and the canceller; an outer circumferential seal unit which is provided on an outer circumferential portion of the canceller and comes into contact with the piston to seal an operating oil supplied to the canceller chamber; and a second outer circumferential seal unit which is provided on the outer circumferential portion of the canceller and comes into contact with the opponent member to seal an operating oil flowing through the oil path, in which the second circumferential seal unit has an axial seal shape which comes into contact with an inner circumferential shape of a cylindrical shape provided on the opponent member.

Abstract: A sealing system with at least one sealing device for a pressurizing-agent-operable actuating device, for sealing off a pressure chamber assigned to the latter from the surroundings. The individual sealing element being placed in a groove formed by the actuating device and a thin sheet metal element connected to the actuating device, where at least two contact surfaces that describe the groove are formed on the actuating device for the sealing element.

Abstract: A method and a sealing system for sealing the space between a piston and the hub of a torque converter lockup clutch is provided. According to the method and the sealing system, the seal is pretensioned with its cylindrical surface facing the piston bore. In an embodiment of the invention, the first seal is fastened by a second seal. The invention allows minimization of oil leakage flow and at the same time to linearize its dependency on the differential pressure. Spontaneous sealing may be reduced, thereby directly correlating the contact pressure of the piston—and thus the torque of the torque converter lockup clutch—with differential pressure and eventually allowing for smoother travel.

Abstract: A limited slip differential transmission of the closed type in which a pressurized lubricant is fed to the rotating gears and a series of limited slip clutch plates. The clutch plates are engaged by pressurized control fluid. A valve assembly having a spool valve is responsive to engagement pressure to permit discharge of a portion of pressurized fluid from the clutch plates to a sump chamber and the transmission to purge debris that may have accumulated in the clutch plates. The spool valve is arranged so that fluid is passed only during an intermediate movement of the valve to minimize any pressure loss from the lubricating fluid for the transmission and limited slip clutches.

Abstract: To make it unnecessary to insert a plate spring as a separate part between a metal ring (2) and a mating member (11) to be coupled therewith such as a clutch plate, and reduce the number of parts and the assembly manhours, the sealing device (1) includes the metal ring (2) and seal sections (3) such as packings supported by the metal ring (2), and the metal ring (2) is provided with a intimate-contact region (4) for intimately contacting to the mating member (11) to be coupled, wherein the sealing device (1) is characterized in that the intimate-contact region (4) of the metal ring (2) is integrally formed with pawl-like intimate-contact sections (6) which are in the form of a pawl and which exert spring force on the mating member (11) to be coupled, and is used, for example, as a bonded piston seal (BPS) in an automatic transmission.

Abstract: A seal structure provided in an inner mechanism of an automatic shift gear includes: a housing; a piston; a canceller; a return spring; an opponent member which is disposed opposite to a centrifugal canceller chamber in the canceller and forms an oil path between the opponent member and the canceller; an outer circumferential seal unit which is provided on an outer circumferential portion of the canceller and comes into contact with the piston to seal an operating oil supplied to the canceller chamber; and a second outer circumferential seal unit which is provided on the outer circumferential portion of the canceller and comes into contact with the opponent member to seal an operating oil flowing through the oil path, in which the second circumferential seal unit has an axial seal shape which comes into contact with an inner circumferential shape of a cylindrical shape provided on the opponent member.