Pumps – Combined
Patent
1983-11-25
1985-07-16
Freeh, William L.
Pumps
Combined
417368, 417415, 92144, F04B 3906, F04B 3916
Patent
active
045293651
ABSTRACT:
An oil-less gas compressor comprises at least one cylinder block mounted on a crankcase, the outer end of the cylinder block being closed by a cylinder head. A piston in the cylinder block bore is reciprocated by a motor-driven crankshaft in the crankcase. The cylinder blocks and cylinder heads are generally square in cross section. On all four sides of the cylinder block and cylinder head there are spaced cooling fins which extend in an axial direction. Axially extending cooling air passages between the fins communicated at their lower ends with the interior of the crankcase. Air drawn into the crankcase by a fan on the crank shaft flows into and through these cooling air passages to cool the cylinder block and head. In one corner portion of the cylinder block and head there is an integral axially extending suction bore containing a filter. In an adjacent corner portion of the cylinder block there is an axially extending compressed air bore. In the other two corner portions there are tubular air passages which likewise communicate with the interior of the crankcase.
REFERENCES:
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patent: 2605044 (1952-07-01), Hill
patent: 2899130 (1959-08-01), Sykes
patent: 3145914 (1964-08-01), Nicholas
patent: 3375972 (1968-04-01), Raufeisen
patent: 3521607 (1970-07-01), Wiseman et al.
patent: 4190402 (1980-02-01), Meece et al.
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Grindler Horst
Hofmann Hans-Joachim
Nitsche Klaus
Schutt Peter
Adams Bruce L.
Burns Robert E.
Durr-Dental GmbH & Co. KG
Freeh William L.
Lobato Emmanuel J.
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