Continental Teves, Ag and Company Ohg

Hans-Georg Zentgraf

Dieter Dinkel

Albrecht Otto

Axel Hinz

Georg Sonnenschein

Daniela Zuk

Daniel Zuk

Kristian Tarandek

A supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges, and wherein a resetting spring is arranged between the carrier and the piston. A multi-piece cage facilitating inserting the resetting spring into the cage parts, the cage parts comprise a fastener that locks the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.

Supply device

The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges , and wherein a resetting spring is arranged between the carrier and the piston. It is the essence of the invention that a multi-piece cage allows inserting the resetting Spring into the cage parts, the cage parts comprise fastening means that lock the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.

A piston pump () for a hydraulic consumer of an electronically controlled vehicle brake system, carries a stepped piston () and centers a sealing assembly () which is retained in an axial direction Ax by a step () on the stepped piston (), on the one hand, and is retained by a spring cage (), on the other hand. The stepped piston () includes a plane support () for plane support legs () of the spring cage () The stepped piston () includes radially inwards, with respect to the support (), a stepped bore (), with the bore () accommodating centering legs () of the spring cage (). Coaxially as well as inside the stepped bore (), a spring-loaded valve member () of a non-return valve is arranged. A resetting spring () is supported on an abutment () of the bushing () on the one hand and on the spring cage () on the other hand The bushing () is provided with a stop () for the stepped piston (), so that stepped piston (), resetting spring (), non-return valve, and sealing assembly () are arranged within the bushing () as a subassembly that can be handled independently.

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Rüsselsheim, Germany

Hans-Georg Zentgraf