Controllable coolant pump
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United States of America Patent
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Dec 27, 2016
Grant Date -
Jul 31, 2014
app pub date -
Aug 17, 2012
filing date -
Sep 9, 2011
priority date (Note) -
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Abstract
A controllable coolant pump driven by a belt pulley for internal combustion engines is equipped with a valve slide. A seal is disposed on the outer edge of the wall plate between the plate and the outer cylinder of the valve slide. At least one additional flow outlet opening is disposed on the pump housing, the outlet volume stream of which openings can be additionally controlled, aside from the controllable volume stream that exits from the flow exit opening. The flow outlet opening from which the controllable outlet volume stream exits is connected with an outflow opening disposed near the rear wall of the valve slide, in the pump chamber rear wall, via an outflow channel. The outflow opening is enclosed by a ring seal disposed in the pump chamber rear wall, which enters into operative engagement with the valve slide in its rear end position.
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