Fluid injection system pump and pumping methods

Details Fluid injection system pump and pumping methods Fluid injection system pump and pumping methods

B - Operations, Transporting

65

B

103/30

B65B 3/04 (2006.01) F02M 39/00 (2006.01)

Patent

CA 1336246

A pumping apparatus is described for use in a fluid injection system. The pumping apparatus receives an unpressurized container having a predetermined quantity of liquid therein. An outlet valve is also provided and has an inlet passage, a valve seat, an outlet passage, a flat flexible, pressure responsive valve element, engaging the valve seat, and exposed on one side to the passages. A spring urges the element into closed position on the valve seat. A mechanism cooperates with the container for forcing fluid out of the container into the valve inlet passage so as to open the valve element temporarily and permit fluid to flow into the valve outlet.

616501

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