Abstract: A pressure system having at least two pressure circuits each including a respective positive-displacement element and each compression side of the positive-displacement elements being in operative communication via a compensation device in such a way that a pressure increase in the first pressure circuit leads to a pressure increase in the second pressure circuit, and the pressure increase of the first pressure circuit is essentially reduced by the amount of the pressure increase of the second pressure circuit, and the reduction in the pressure increase is less than a defined limit value.

Abstract: A piston pump, having a pump housing in which a pump piston is guided in an axially moving fashion so that when the pump piston is actuated, a fluid is conveyed from a suction side to a pressure side via a pumping chamber that adjoins the pump piston; a region for guiding the pump piston in the pump housing includes a guide ring, which is provided with a sealing section and is affixed to the pump housing.

Abstract: The invention relates to a piston pump for conveying fluids. The piston pump includes a piston, and a pressure chamber located between an intake valve and a discharge valve. The intake valve is arranged between the pressure chamber and a low-pressure zone of the piston pump. The intake valve has a valve body, a closing element, a device for preloading the closing element, and a device for fastening the intake valve to the piston. The fastening device encompasses at least two fastening elements which protrude from the valve body toward the piston. The fastening elements are positioned at a distance from one another, and are fitted with inlets therebetween for supplying fluid. The invention further relates to a piston pump having an intake valve without a spring-biased element.

Abstract: The present invention relates to a piston pump for feeding a fluid, having a piston and a pressure chamber which is arranged between an inlet valve and an outlet valve. The inlet valve has a closing element, a spring element for restoring the closing element, and a holding device. The holding device has a holding region for holding and supporting the spring element and an integrally formed sealing region in order to seal the pressure chamber with respect to a low-pressure region of the piston pump. The sealing region is of annular design and has a parting gap which is closed in an installed state.

Abstract: A piston pump includes a pump housing in which a pump piston is guided axially movably, so that upon an actuation of the pump piston a fluid is pumped from a suction side of the piston pump to a compression side of the piston pump via a pump chamber adjoining the pump piston. According to the invention, the pump piston is guided by means of a piston ring which has a dividing point that is sealed in a radially and axially pressure-reinforced manner.

Abstract: A method is disclosed for monitoring a pressure fluid reservoir that is equipped with an elastically-shaped media-separating element and a terminal position seal in which fluid reservoir is connected in a pressure fluid loop having a pressure generator driven by a drive unit and having at least one measuring instrument, which detects a parameter representing the operating pressure in the pressure fluid loop. The parameter is delivered to an electronic control unit, where it is further processed into a trigger signal, among others for the drive unit of the pressure generator. After the operating pressure in the pressure fluid loop has dropped below a prestressing pressure the drive unit of the pressure generator is triggered by the control unit, and via a predeterminable time interval beginning with this triggering, the signal course of the measuring instrument is plotted by the control unit and compared with a suitably memorized set-point value course.