Oil free compressor

Details Oil free compressor Oil free compressor

1972-11-20

1977-04-05

Freeh, William L.

Pumps

Expansible chamber type

Pumping member position controlled port

92157, F01L 1514, F04B 704

Patent

active

040159159

ABSTRACT:
An air compressor utilizing one or more pistons reciprocating within water cooled cylinders and operating in an oil free environment. Each piston is reciprocated by rotation of motor driven, balanced rotors, through a reciprocating and oscillating shuttle member. A centrally sleeved, hollow ball, accommodates shuttle member movement, while interconnecting the shuttle member and the rotors. Positive lubrication is provided for the rotor bearings, the hollow ball and shuttle member and the reciprocating piston shafts. The rotors are driven in opposite directions by motors mounted to maintain constant torque on the rotors.

REFERENCES:
patent: 1478929 (1923-12-01), Tursky
patent: 2698394 (1954-12-01), Brown
patent: 2963217 (1960-12-01), Wysong, Jr.
patent: 3183848 (1965-05-01), Raymond
patent: 3250931 (1966-05-01), Hardman
patent: 3398728 (1968-08-01), Hardman
patent: 3570628 (1969-04-01), Rodgers

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