Rotary piston blower having offset shafts and a tapered housing

Details Rotary piston blower having offset shafts and a tapered housing Rotary piston blower having offset shafts and a tapered housing

1987-06-19

1988-07-19

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

418206, F04C 2904, F04C 1818

Patent

active

047581409

ABSTRACT:
An external axial rotary piston blower having a housing including a casing part and two side parts of which the casing part encompasses a cylindrical runway surfacing which is formed by two cylinders intersecting each other in a region of an inlet and an outlet and in which two identical pistons having at least one wing portion rotate among each other, such pistons having starting surfaces with a large radius running against a casing runway surfacing and respectively another piston having a starting surface with a small radius running correspondingly against a casing runway surfacing. Shafts of the pistons are offset or shifted in cold condition in a direction of a short housing axis toward the outlet and the housing on the side of the outlet is shorter in axial direction in cold condition than on the side of the inlet.

REFERENCES:
patent: 2014932 (1935-09-01), Hallet
patent: 4089625 (1978-04-01), Hofmann, Jr.
patent: 4511316 (1985-04-01), Ellis

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