Regulated pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 23, 2004
Grant Date -
Jun 19, 2003
app pub date -
Nov 22, 2002
filing date -
May 25, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a pump, in particular to oil pumps for internal combustion engines comprising a gear assembly or rotor assembly with one each of a pressure and suction region arranged in a pump housing, which may be sealed from each other by means of an axially displaceable piston valve which defines a supply chamber and a housing cover, closing the pump housing. The pressure region comprises a pressure channel connected to the waist of the control piston, whereby the control piston cooperates with a plunger on the end thereof facing the supply chamber, which is arranged at right angles to the control piston. The plunger is pre-tensioned against the control piston by means of a pressure spring, and the plunger and control piston are connected by means of a sliding surface, arranged at an angle to the control piston axis.
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