Hydraulic clutch actuation system
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorVolker Lang
Life of this patent
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Abstract
A hydraulic clutch actuation system having a cylinder housing part made of plastic, in particular a slave cylinder housing part or a master cylinder housing part, to which another cylinder housing part made of plastic is attached, which has a sliding contact surface for an outer peripheral surface of a piston. To prolong the service life of the hydraulic clutch actuation system, the sliding contact surface or the outer peripheral surface is made of a different plastic material than the base material(s) of the cylinder housing parts of the piston, that has better sliding or wear properties than the plastic material from which the remainder of the additional cylinder housing part, respectively, of the piston is formed.
Claims12
A hydraulic clutch actuation system comprising:
- a piston having an outer peripheral surface;
- a plastic cylinder housing part;
- and
- a plastic weld ring member, the plastic weld ring member having a first plastic component attached to the plastic cylinder housing part and a sliding contact surface for the outer peripheral surface of the piston,
- the sliding contact surface or the outer peripheral surface being made of a different plastic material than the plastic cylinder housing part and the first plastic component, the different plastic material having better sliding or wear properties than a plastic material of the first plastic component.
Dependencies are inferred from the claim text.