Two stage stepped piston air compressor

Details Two stage stepped piston air compressor Two stage stepped piston air compressor

1981-12-16

1987-04-14

Croyle, Carlton R.

Pumps

Successive stages

Reciprocating rigid stages

417268, 417534, F04B 300, F04B 2502

Patent

active

046574883

ABSTRACT:
An air compressor with a cylinder (1) has a stepped piston (4) movably disposed therein which performs compression in both stroke directions to provide two-stage compression. Each compression stage is associated with at least one inlet and outlet valve (34, 36 or 35, 37), whereby one outlet opening (22) of a lower compression stage is connected with an inlet opening (20) of a higher compression stage. All valves (34-37) are disposed on the upper side of the compressor in the vicinity of the cylinder head (13; 30). The compressor has few individual parts and the valves are easily accessible for maintenance.

REFERENCES:
patent: 689702 (1901-12-01), Berg
patent: 3547561 (1970-12-01), Lavon

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