PISTON PUMP FOR A HIGH-PRESSURE CLEANING APPLIANCE
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United States of America Patent
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app pub date -
Jul 17, 2014
filing date -
Jan 20, 2012
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Abandoned
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Abstract
A piston pump for a high-pressure cleaning appliance is provided, including a plurality of pump chambers, into each of which one piston which is movable back and forth plunges, and which are each in flow connection via a suction valve with a suction inlet and via a pressure valve with a pressure outlet, the suction valve including a suction valve closing member which is sealingly positionable on a suction valve seat, and the pressure valve including a pressure valve closing member which is sealingly positionable on a pressure valve seat, the pressure valve seat and the suction valve seat being at different radial distances from a longitudinal pump axis. To increase piston pump mechanical stability without increasing material thickness, the pressure valve seat can be arranged, in relation to the longitudinal pump axis, offset from the suction valve seat in the circumferential direction of the piston pump.
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