Method and apparatus for improved, high-pressure, fluid pump

Abstract

An apparatus for constructing a high pressure fluid pump has a piston housing, a pump head connected to and supported by the piston housing, and a pump pedestal for supporting the pump head and the piston housing. The pump head receives water at low pressure and, in combination with the piston housing, produces fluid through a flow channel at high pressure. The combination of piston housing and pump head contain a “go-thru” valve which, in response to a suction on one side of the valve allows water at low pressure to pass through the valve into a receiving chamber, and in response to a high pressure fluid in the receiving chamber enables fluid at a high pressure to pass through the valve and eventually to an output port while closing off the input path. The pump further has, in one embodiment, an aluminum pump head or manifold appropriately structured to withstand high pressure fluid impact.

1 . A high pressure fluid pump comprising:
 a piston housing;   a pump head connected to and supported by the piston housing;   a pump pedestal for supporting the pump head and the piston housing;   the pump head receiving fluid at a low pressure, and, in combination with the piston housing, producing fluid through a flow channel at a high pressure;   the combination of piston housing and pump head containing a “go thru” valve which in response to a suction on one side of the valve allows input fluid at a low pressure to pass through the valve and into a receiving chamber, and in response to a high pressure in the receiving chamber enables fluid at a high pressure in the chamber to pass through the valve to an outlet port while blocking the low pressure input path.   
     
     
         2 . The high pressure fluid pump of  claim 1  further comprising,
 said pump head comprising aluminum, and 
 wherein the outer surfaces of the pump had have concave relief elements for strengthening the pump head against high pressures from within the pump head. 
 
     
     
         3 . The high pressure fluid pump of  claim 1  further comprising
 the receiving chamber having a diameter greater than 5 mm. 
 
     
     
         4 . The high pressure fluid pump of  claim 1  further comprising
 a pump head comprising brass. 
 
     
     
         5 . A high pressure fluid pump comprising:
 a piston housing;   a pump head connected to and supported by the piston housing;   a pump pedestal for supporting the pump head and the piston housing;   the pump head receiving fluid at a low pressure, and, in combination with the piston housing, producing fluid through a flow channel at a high pressure;   the combination of pump head, piston housing, and pump pedestal together enclosing and including a wobble plate, a plurality of pistons, and a fluid receiving/exiting chamber, wherein the wobble plate is rotated by an external rotary source, the wobble plate being in contact with and driving the pistons to reciprocate the pistons in timed sequence to each other, and the pistons acting to draw water into the receiving chamber on a first stroke away from the chamber and compressing the water at high pressure during a second stroke toward the chamber, and   the combination of piston housing and pump head containing a “go-thru” valve which in response to a suction on one side of the valve allows input fluid at a low pressure to pass through the valve and into a receiving chamber, and in response to a high pressure in the receiving chamber enables fluid at a high pressure in the chamber to pass through the valve to an outlet port while blocking the low pressure input path.   
     
     
         6 . The high pressure fluid pump of  claim 5  further comprising
 a double seal arrangement for preventing fluid leakage around the pistons.