Multi-cylinder compressor having spaced arrays of cylinders
AssigneeSankyo Electric Company Limited
InventorsMasaharu Hiraga, Brian J. Taylor
Life of this patent
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Abstract
A multi-cylinder compressor of the type suitable for use in a vehicle air-conditioning system includes a pair of axially spaced cylinder blocks for receiving a refrigerant fluid therein for compression. First and second sets of pistons are respectively reciprocated within the front and the rear cylinders, respectively by means of first and second sets of rods of different axial lengths. Also disclosed is an improved lubricating system for a compressor which includes a flapper element located near the oil hole to direct oil to the shaft seal for both clockwise and counterclockwise rotation of the compressor. The compressor may also include a slanted surface on the cam rotor for splashing oil onto the compressor housing wall.
Claims15
A compressor comprising a housing having first and second end members, one of said end members defining inlet and outlet means for a fluid to be compressed, a first cylinder arranged within said housing, a second cylinder arranged within said housing and spaced axially from said first cylinder, means for directing fluid to and from said first and second cylinders, first and second piston means respectively axially movable within said first and second cylinders and respectively defining with said first and second cylinders first and second pump chambers, a rotor extending through the other of said end members into the interior of said housing, a wobble plate operatively connected to said rotor for rotation therewith, and first and second angularly offset drive means of different axial lengths operatively connected to said wobble plate and respectively to said first and second piston means for respectively imparting reciprocating movement to said first and second piston means within said first and second cylinders, thereby to compress the fluid in said pump chambers in said first and second cylinders.
In a compressor including a main housing for receiving therein a quantity of a fluid and a lubricant, fluid-compressing means within said main housing, a front plate secured to said main housing, means including a rotating shaft extending through said front plate and into the interior of said main housing for operating said fluid-compressing means, and a lubricant opening formed in said front plate and in communication with the interior of said main housing, the improvement which comprises:
- means pivotably mounted to the interior of said front plate and pivotable about its axis in one of a first and second direction in accordance with the direction of rotation of said shaft, said pivotable means being located adjacent said lubricant opening for deflecting lubricant incident thereon into said lubricant opening.
A compressor including a main housing, at least one chamber for receiving therein a fluid, means for compressing said fluid in said chamber, means for imparting fluid compression motion to said compressing means, said last-mentioned means including a shaft and a rotor affixed thereto, a front plate having a lubricant opening therein in communication with the interior of said main housing, said rotor having an upwardly sloping surface formed on the outer periphery thereof for directing a quantity of lubricant incident thereon toward said lubricant opening, a deflecting element located adjacent said lubricant opening for deflecting oil directed thereto by said sloping surface to said lubricant, and a flapper element pivotably mounted to the interior of said front plate and positioned adjacent said lubricant opening and said deflecting element.
Dependencies are inferred from the claim text.