Swash-plate type compressor with an abrasion resistant projectin

Details Swash-plate type compressor with an abrasion resistant projectin Swash-plate type compressor with an abrasion resistant projectin

1997-09-09

1998-12-08

Denion, Thomas E.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

921691, 2988802, 417269, F01B 300

Patent

active

058455604

ABSTRACT:
It is an object of the present invention to reduce the abrasion at a pressure receiving portion of the cylinder block, without increasing the manufacturing cost, even when the outer rings of a bearing are jointly rotated and eccentrically fluctuated. The cylinder blocks are made of aluminum alloy comprising, by weight, 1.5 to 3.5% of Cu, 13 to 16% of Si, 0.5% or less of Mg, 1.0% or less of Zn, 1.0% or less of Fe and the remainder of Al. The matrix, except for primary Si crystal, is relatively soft. Primary Si crystals which each independently project from the pressure receiving portions tend to be pushed into the base material by the outer rings of the thrust bearings, so that the levels of primary Si crystals are easily made to be approximately uniform. As a result, the interference and thrust load from the outer rings can be appropriately supported by a large number of primary Si crystals, and a jointly rotating motion and an eccentric fluctuation can be appropriately supported by a large number of primary Si crystals under severe operating conditions.

REFERENCES:
patent: 4068645 (1978-01-01), Jenkinson
patent: 4297976 (1981-11-01), Bruni et al.
patent: 4434014 (1984-02-01), Smith
patent: 4650644 (1987-03-01), Huret et al.
patent: 5057274 (1991-10-01), Futamura et al.
patent: 5217546 (1993-06-01), Eady

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