Hermetic refrigeration compressor

Details Hermetic refrigeration compressor Hermetic refrigeration compressor

1990-04-27

1992-06-02

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

417901, 92158, 92159, 92160, 184 68, 184 18, F04B 3504, F04B 1508, F01B 3110, F16N 100

Patent

active

051182637

ABSTRACT:
A single horizontal cylinder, small refrigeration compressor has a lubrication arrangement which includes a recess on the cylinder block above the cylinder bore which collects oil that drains from the lower end of the motor. A supply passage extends downward from said recess and opens into the cylinder bore near its midpoint. The piston has an elongated shallow groove on the interior between head and skirt lands which is connected to the passage during a major portion of the piston stroke to receive oil from the recess. Drain passage means are provided on the piston to allow oil to flow out of the groove at a lesser rate than it is supplied by the supply passage from the recess.

REFERENCES:
patent: 2100799 (1937-11-01), Drysdale
patent: 2286272 (1942-06-01), Higham
patent: 2360876 (1944-10-01), Hvid
patent: 2583583 (1952-01-01), Mangan
patent: 2797857 (1957-07-01), Warner
patent: 3497135 (1970-02-01), Gannaway
patent: 3563677 (1971-02-01), Retan
patent: 4718830 (1988-01-01), Middleton et al.
patent: 4784581 (1988-11-01), Fritchman

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