Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent
1993-11-24
1995-01-10
Bertsch, Richard A.
Pumps
Three or more cylinders arranged in parallel, radial, or...
92177, 91499, F04B 112
Patent
active
053801660
ABSTRACT:
A piston type compressor housing encloses a crank chamber, a suction chamber, and a discharge chamber. The compressor housing includes a cylinder block. A plurality of cylinder bores are formed in the cylinder block in which a plurality of pistons are slidably disposed within the cylinder bores and have a corresponding axis. The drive shaft is rotatably supported in the cylinder block. A slant plate having an angle of tilt is tiltably connected to the drive shaft. A bearing couples the slant plate to the pistons, so that the pistons may reciprocate within the cylinder bores upon rotation of the slant plate. The pistons are adapted to be reciprocally moved in cylinder bores in accordance with the tilting motion of the slant plate. The cylinder bores include a cross-sectional plan which is disclosed by a plane perpendicular to the drive shaft. The cross-sectional plan includes an outline which defines a simple closed curve which is composed of a plurality of curves having varying radii of curvature. Accordingly, the compressor need not have separate piston rotation prevention means within cylinder bores.
REFERENCES:
patent: 4789311 (1988-12-01), Ikeda et al.
patent: 4963074 (1990-10-01), Sanuki et al.
patent: 5032060 (1991-07-01), Kobayashi et al.
patent: 5259736 (1993-11-01), Terauchi
Bertsch Richard A.
Korytnyk Peter
Sanden Corporation
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