Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent
1993-08-11
1995-01-17
Bertsch, Richard A.
Pumps
Three or more cylinders arranged in parallel, radial, or...
91499, F04B 112
Patent
active
053821394
ABSTRACT:
An improved piston guiding mechanism for use in piston a type compressor is disclosed. The compressor includes a housing. A cylinder block having a bore is accommodated in the housing. A piston reciprocates within the cylinder bore. A refrigerant gas containing lubricant oil is sucked into the cylinder bore from outside, is compressed within the cylinder bore, and is discharged out of the compressor in accordance with reciprocating motion of the piston. A hollow section extends radially from the central portion to the peripheral surface of the piston, and opens to the peripheral surface. The hollow section moves between the interior of the housing and the cylinder bore in accordance with the reciprocating motion of the piston, and transfers the lubricant oil in the refrigerant gas from inside of the housing to the cylinder bore.
REFERENCES:
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patent: 5174728 (1992-12-01), Kimura et al.
German Search Report in re P 43 27 948.1 dated 25 Jan. 1994, furnished by the German Patent Office with an Official Letter dated 2 Feb. 1994.
Kanzaki Shigeki
Kawaguchi Masahiro
Sonobe Masanori
Yokono Tomohiko
Basichas Alfred
Bertsch Richard A.
Kabushiki Kaisha Toyoda Jodoshokki Seisakusho
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