Uniform piston ring fill

Details Uniform piston ring fill Uniform piston ring fill

2005-07-26

2005-07-26

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Piston

Nonmetallic portion

C277S452000

Reexamination Certificate

active

06920819

ABSTRACT:
A piston and ring assembly for a compressor that may be used in a vehicle air conditioning system. The assembly comprises a piston and a ring located within a cylinder bore. The ring has a frustoconical shape and the piston has a complementary frustoconical groove. The ring is a parallelogram in cross-section.

REFERENCES:
patent: 2293564 (1942-08-01), Schnell
patent: 4676143 (1987-06-01), Nomura et al.

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