Patent ID: 8272858
Filing Date: 2012-09-25
Classification: B60T,F04B

Abstract:
1. A piston pump for conveying fluids, comprising: an inlet valve and an outlet valve; a piston having a length and an outer circumferential surface, said piston further having a constant diameter throughout its entire length; a pressure chamber disposed between the inlet valve and the outlet valve, wherein the inlet valve is disposed between the pressure chamber and a low-pressure zone of the piston pump, and wherein the inlet valve includes a valve body, a closing element, a prestressing device for prestressing the closing element; said prestressing device being braced on a cage disposed on the valve body, a fixation device for fastening the inlet valve to the piston, the fixation device including at least two fixation elements, each fixation element protruding from the valve body toward the piston, the fixation elements being spaced apart from one another and having inflow openings therebetween for an inflow of fluid, and said valve body, said fixation elements, and said cage being formed as a unitary, one-piece construction.