Piston pump for hydraulic vehicle brake system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 25, 2003
Grant Date -
Oct 24, 2002
app pub date -
Mar 27, 2002
filing date -
Mar 28, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a piston pump for a hydraulic, slip-controlled vehicle brake system. The piston pump has a piston, which is inserted with a part of its length into a sleeve. A tubular filter that encompasses the piston is attached to the sleeve and constitutes a captive retainer, which secures the piston in a captive fashion in the sleeve. In order to reduce an axial mobility of a sealing ring that seals the piston in the pump housing, the invention proposes attaching the filter, which limits the axial mobility of the sealing ring, to the sleeve in an axially mobile fashion.
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