초록 ▼

A swash plate compressor of light weight construction having a cylinder block defining weight reducing tubular cylinder bore portions which form, with its outer shell, a low pressure gas upper inlet channel and a pair of low pressure gas lower exit channels. Aperture means are provided in one of the

A swash plate compressor of light weight construction having a cylinder block defining weight reducing tubular cylinder bore portions which form, with its outer shell, a low pressure gas upper inlet channel and a pair of low pressure gas lower exit channels. Aperture means are provided in one of the heads and its associated valve plate to allow direct axial flow communication from the compressor suction inlet to the upper inlet channel for receiving a mixture of low pressure gas and oil. Aperture means are formed in the compressor heads and their associated valve plates providing communication from the upper inlet channel to the compressor low pressure gas suction chambers via a weight reducing swash plate space that completely exposed the swash plate and each of the lower exit channels. The result is that compressor weight is reduced while lubrication is achieved by the low pressure gas and oil mixture entering the upper inlet channel and flowing in heat exchange relation with the upper tubular portions separating a portion of the oil from gas for deposit on the upper tubular portions for subsequent gravitational flow to the operation portions of the compressor and with the low pressure gas and oil mixture directly exposed to and enveloping the swash plate to ensure that sufficient entrained oil is caused to separate out as a film on the swash plate sides.

대표청구항 ▼

A swash plate compressor, comprising: a cylindrical shell surrounding front and rear cylinder heads disposed at opposite ends of said shell, said rear cylinder head having a suction inlet and a discharge outlet, a cylinder block disposed intermediate said heads within said shell, said cylinder block

A swash plate compressor, comprising: a cylindrical shell surrounding front and rear cylinder heads disposed at opposite ends of said shell, said rear cylinder head having a suction inlet and a discharge outlet, a cylinder block disposed intermediate said heads within said shell, said cylinder block including three longitudinally disposed tubular portions arranged about the shell axis and configured to provide open space between adjacent pairs of said tubular portions to reduce the weight of said cylinder block and with an upper two of the tubular portions above the third to form with said shell a low pressure gas upper inlet channel and a pair of low pressure gas lower exit channels, said tubular portions defining front and rear cylinder bores on opposite sides of an inwardly-facing notched-out opening and front and rear hubs respectively, between said front and rear cylinder bores and in communication with said upper inlet channel, whereby to define by said notched-out opening a location for a swash-plate and by said hubs a location for journal means, journal means in said hubs, a compressor drive shaft rotatably supported by said journal means; a swash plate rotatable by said drive shaft in said location for a swash plate, piston means arranged to reciprocate within said cylinder bores in response to rotation of said swash plate, front and rear thrust bearings in said location for a swash plate between each hub and said swash plate so as to restrict endwise movement of said shaft, front and rear valve plates respectively interposed between said cylinder block and said front and rear cylinder heads, each of said front and rear valve plates having inlet and outlet ports therein communicating with associated front and rear cylinder bores, each of said front and rear cylinder heads configured to define with their respective front and rear valve plates an outer low pressure gas suction chamber opposite the open space of said tubular portions and an inner high pressure gas discharge chamber, cross-over passage means interconnecting the inner high pressure gas discharge chambers of said front and rear cylinder heads, means in said rear head and its associated valve plate providing direct axial flow communication from said suction inlet to said upper inlet channel for receiving a mixture of low pressure gas and oil into said upper inlet channel, means in said front and rear heads and their associated valve plates providing axial flow communication from said upper inlet channel to said outer low pressure gas suction chambers via said location for a swash plate and each of said lower exit channels for introduction of a low pressure gas and oil mixture into said cylinder bores, whereby low pressure gas and oil mixture, upon entering said upper inlet channel, flows in heat exchange relation with said upper two of the tubular portions to increase the temperature of said mixture sufficiently to separate a portion of the oil from the gas and deposit the oil portion by gravity on said upper two of the tubular portions for subsequent gravitational flow to the journal means in said hubs by way of the communication of said inlet channel with said hubs to lubricate said front and rear journal means and thrust bearings, and whereby the oil remaining in said mixture after said separation is caused by the flow of said gas to exit said upper inlet channel via the location for said swash plate so that sufficient of the remaining oil admixed with said gas impinges upon and wets the surfaces of said swash plate to lubricate same during reciprocation of said piston means.