High-pressure plunger pump and method for the functional interruption of a fluid flow
OwnerMichael JARCHAUinventor
Life of this patent
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Abstract
A high pressure plunger pump, having at least one plunger arrangement which comprises a working space connected to a valve seat suction line and a valve seat pressure line, in which a plunger is arranged in an axially reciprocable manner, wherein the valve seat pressure line is closeable by a pressure valve and the valve seat suction line by a suction valve, and the suction valve can be kept in an open position in a controlled manner as required by means of a counter-pressure device, is designed so that the counter-pressure device has a supply line via which a control fluid can be guided to the suction valve for keeping the suction valve open, wherein a low-pressure pump is connected to the supply line for generating pressure of the control fluid.
Claims14
High-pressure plunger pump, having at least one plunger arrangement which has a working space connected to a valve seat suction line and a valve seat pressure line, in which a plunger is arranged in an axially reciprocable movable manner, wherein the valve seat pressure line is closeable by a pressure valve and the valve seat suction line by a suction valve, and the suction valve can be kept in an open position in a controlled manner as required by means of a counter-pressure device, wherein the counter-pressure device has a supply line via which a control fluid can be guided to the suction valve for keeping open the suction valve, wherein a low-pressure pump is connected to the supply line for generating pressure of the control fluid.
Method for functionally interrupting a fluid flow emerging from a hydraulic consumer of a high-pressure plunger pump, in which an axially movable suction valve is kept in an open position in a controlled manner as required and independently of the position of the associated plunger, wherein the suction valve is held hydraulically in the open position which is controlled as required.
Dependencies are inferred from the claim text.