Pressure control valve for slip-controlled hydraulic brake systems
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United States of America Patent
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Feb 21, 1995
Issued Date -
N/A
app pub date -
Nov 1, 1993
filing date -
Sep 8, 1990
priority date (Note) -
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Abstract
A pressure control valve is disclosed comprising a valve tappet (1) guided in a valve housing (3) and accommodating a compression spring (4), with a valve closure member (10) on one end of the valve tappet (1) and mating with a valve seat (9) establishing a connection between a pressure supply port (11) that emanates from a pressure fluid source and a pressure return channels (12) once the pressure attains a specific preset desired valve. In order to diminish noise, at least one friction element (2) is in engagement with the valve tappet (1) movable to abut on radial friction surfaces of the valve housing (3) and/or the valve tappet (1).
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