发明名称 VARIABLE VOLUME RESERVOIR
摘要 A reservoir for a hydraulic pump system includes a reservoir body, an inner wall dividing an interior of the reservoir body into a first pressure chamber and a second pressure chamber, and a one-way valve connecting the first pressure chamber and the second pressure chamber. A piston assembly forms a first cylinder portion connected to the first pressure chamber and a second cylinder portion that is vented. The piston is movable within the cylinder under the influence of a biasing member to increase and decrease the overall volume of the first pressure chamber. The piston pressures a piston pump inlet connected to the first pressure chamber and maintains a constant pressure within the first pressure chamber under a variety of piston pump operating conditions.
申请公布号 US2009191068(A1) 申请公布日期 2009.07.30
申请号 US20080021751 申请日期 2008.01.29
申请人 CLARK EQUIPMENT COMPANY 发明人 ST. AUBIN JOSEPH A.;BROCK KNUTE K.
分类号 F04B7/04;F04B1/00;F15B1/04 主分类号 F04B7/04
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