Variable capacity compressor

Title: Variable capacity compressor

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20090148313, Variable capacity compressor.

What is claimed is:

1. A variable capacity compressor comprising: a housing within which a plurality of cylinder bores and a crank chamber communicating with the plurality of cylinder bores are provided; a drive shaft rotatably supported within the housing; a rotor fixed with the drive shaft; a link for linking the rotor and a journal; a tilting plate capable of changing a tilted angle thereof by a movement of the journal; and a plurality of pistons capable of reciprocating within the plurality of cylinder bores, respectively, due to a swinging rotation of the tilting plate; wherein the tilted angle of the tilting plate is changed due to a rotation of the rotor by way of the link, each reciprocating stroke of the plurality of pistons is adjusted according to the tilted angle of the tilting plate, the link is linked with the rotor via a first pivot and linked with the journal via a second pivot, and an arrangement of the first and second pivot is set so that each head clearance of the plurality of pistons decreases as a discharge capacity decreases toward a minimum value thereof within a small discharge capacity range.

2. The compressor according to claim 1, wherein a ratio of a head clearance B at the top dead center of the piston to a stroke A of the piston shall be defined as a stroke ratio B/A, and the arrangement of the first and second pivot is set so that the stroke rate B/A is made constant or decreases as the discharge capacity decreases within the small discharge capacity range.

3. The compressor according to claim 1, wherein the link is configured so that the first pivot is arranged nearer to the journal than the second pivot and the second pivot is arranged nearer to the rotor than the first pivot.

Brief Patent Description - Full Patent Description - Patent Claims

Click on the above for other options relating to this Variable capacity compressor patent application.

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Previous Patent Application:
Axial flow fan unit
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Industry Class:
Pumps

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