A high pressure hydraulic diaphragm pump having a pressure chamber on one side of a diaphragm and a fluid delivery chamber on the other side of the diaphragm with a reciprocating piston assembly including a piston member being provided for pressurizing the hydraulic fluid in the pressure chamber and having the pressure chamber connected with a pressure regulator which maintains the desired discharge pressure of the fluid and in which the piston assembly is combined with a diaphragm positioning mechanism for maintaining the diaphragm at a desired position relative to the piston member so as to assure full stroke of the diaphragm during normal operation of the pump.
申请公布号
US6071089(A)
申请公布日期
2000.06.06
申请号
US19980027121
申请日期
1998.02.20
申请人
GENERAL MOTORS CORPORATION
发明人
MAIER, EUGEN;RANEY, MICHAEL RAYMOND;MORAN, DONALD JAMES;NOLL, JEFFREY MARK