Abstract:
A release mechanism for actuating a friction clutch is concentric to a center axis of a guide sleeve mounted in turn on a transmission shaft. The release mechanism includes a clutch release bearing and a device for compensating for the tilt of the center axis of the friction clutch with respect to the center axis of the guide sleeve and/or for the wobbling eccentricity of the release spring. The clutch release bearing includes an inner ring, an outer ring, and an adjusting sleeve. One of the inner ring or outer ring communicates with a release spring of the friction clutch. The device for compensating for the tilt of the center axis of the friction clutch with respect to the center axis of the guide sleeve and/or for the wobbling eccentricity of the release spring includes a release ring and a load ring. The release ring is in contact with a finger of the release spring of the friction clutch and includes a spherical surface having a center on the axis of the transmission shaft. A load ring cooperates with the spherical surface of the release ring and communicates with the adjusting sleeve for placing the one of the inner ring and outer ring in communication with the release spring. Preferably the release ring is curved and the load ring is a circular cross-sectioned wire to reduce wear.
Abstract:
The invention relates to a fluid-actuable releaser in which an annular piston (6) is guided in a casing (3) which is provided with a sleeve (10) for guiding the annular piston (6) radially internally and for sealing purposes, the sleeve (10) being axially fixed by partial plastic deformation after insertion into the casing (3) with its external diameter in a bore (16) in the casing (3).
Abstract:
A roller bearing includes a radially outer bearing ring and a radially inner bearing ring. A ring-shaped holding space is formed between the bearing rings where a sealing element is mounted. The sealing element has a fastening section which is fixed to the outer bearing ring, and a lip section with two sealing lips which rest against and slide on the inner bearing ring to establish a sealing connection between the lip section and the inner bearing ring.
Abstract:
A seal element, in particular an elastomer gasket for use in hydraulic annular cylinders, such as in clutches, with a radially outer and a radially inner seal lip, characterized by the fact that the seal lips are axially offset in relation to one another.
Abstract:
A hydraulically actuated clutch release system for a motor vehicle friction clutch, including a piston-cylinder unit oriented concentrically to a transmission input shaft, whereby the cylinder is fastened to the transmission housing, and has the cylinder chamber for the piston between an inner and an outer cylinder shell. The piston itself is guided inside a guide element surrounded by the outer cylinder shell. The outer cylinder shell, next to the guide element, has at least one retaining member which can be brought into contact with the guide element, and through which retaining member the guide element can be secured against participation in the movement of the piston during the engagement and release of the clutch. In this case, when there is a change in the axial position of the piston caused by wear in the friction clutch, the action of the retaining member can be suppressed for a displacement of the guide element.
Abstract:
A clutch-release device for a friction clutch of a motor vehicle includes a guide tube and a sliding sleeve, which is free to shift position axially on the tube, the sleeve having a contact area for absorbing the actuating force of an actuating element. A clutch-release bearing is mounted on the sliding sleeve, the bearing having a nonrotatable first bearing ring, rolling elements, and a rotating second bearing ring, which is in working connection with an actuating element of the friction clutch. To increase the number of identical parts and thus to reduce costs, the sliding sleeve has a multi-part design, thus representing an assembly having at least two parts.
Abstract:
An actuation device for a shiftable clutch includes a pressure supply for providing a pressure of a pressure medium for actuating the clutch, and a first and a second workspace independently in communication with the pressure supply for receiving the pressure. A first piston surface is disposed in the first workspace and is operably displaceable in a first direction responsive to the pressure. A second piston surface is disposed in the second workspace and is operably displaceable in a second direction responsive to the pressure. The second direction is oriented opposite to the first direction. One of the first or second piston surfaces is responsive to an application of the pressure in the respective workspace displacing in the respective first or second direction to exert the actuation force.
Abstract:
A friction clutch, particularly for a motor vehicle, including a clutch disk which can be coupled in frictional engagement with the crankshaft of an internal combustion engine and which is connected by a hub to a transmission input shaft so as to be fixed with respect to rotation relative to it and can revolve with the latter around a common axis of rotation. The clutch further includes an actuation system for engaging or disengaging the frictional engagement of the clutch disk which is arranged concentric to the transmission input shaft, and a transmission brake for reducing the rotational speed of the transmission input shaft during determined shifting processes of the transmission. The transmission brake can be controlled independent from the actuation system of the friction clutch, and all component parts of the transmission brake are integrated in the actuation system of the friction clutch.
Abstract:
A release system for a clutch assembly comprises a release slide, which is or can be connected to a stored-energy element of the clutch assembly to execute release movements, and at least one brake element, which can move along with the release slide during the execution of release movements. This brake element can be brought into braking interaction with an opposing brake element which is or can be connected in an essentially nonrotatable manner to a clutch output shaft, where the release slide and the minimum of one brake element form a piston/cylinder unit with at least one fluid chamber. Pressure fluid is introduced into the minimum of one fluid chamber to produce a force which preloads or moves the minimum of one brake element relative to the release slide.
Abstract:
The actuation device includes a pressure medium force cylinder arrangement by means of which the friction clutch can be actuated via a release member. A measuring member of a measuring arrangement detecting an actual release is in tractive force driving engagement with an associated mating member whose position represents the actual release along a measurement path, which engagement is essentially free from play.