Hydraulic ammonia solution pump

Details Hydraulic ammonia solution pump Hydraulic ammonia solution pump

1995-09-25

1997-04-29

Gluck, Richard E.

Pumps

Motor driven

Fluid motor

F04B 908, F04B 3502

Patent

active

056242468

ABSTRACT:
The present invention relates to a hydraulic pump for use in an ammonia absorption heating and cooling system. The pump is driven by an electric motor that causes a piston to reciprocate within a cylinder. The piston is hydraulically actuated and allows the piston to pump the ammonia through the absorption heating and cooling system below atmospheric pressure. This is achieved through the inclusion of a plurality of ports bored through the cylinder that allow excess lubricant to exit the cylinder during the compression stroke of the piston. The removal of excess lubricant allows the piston to travel through a full stroke, optimizing efficiency, and allowing the ammonia to pumped at pressures below atmospheric.

REFERENCES:
patent: 3473347 (1969-10-01), Andrews et al.
patent: 4019837 (1977-04-01), Eull
patent: 4416599 (1983-11-01), De Longchamp
patent: 4430048 (1984-02-01), Fritsch
patent: 5088901 (1992-02-01), Brauer

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