Variable capacity rotary compressor
First Claim
1. A variable capacity rotary compressor comprising:
- first and second compression chambers having different capacities;
a rotary shaft disposed through the first and second compression chambers;
first and second eccentric cams mounted at the rotary shaft in the first and second compression chambers, respectively;
first and second eccentric bushes rotatably mounted at outer surfaces of the first and second eccentric cams, respectively;
a connection part connecting the first and second eccentric bushes, the connection part having a latching groove extending in a rotating direction of the rotary shaft;
a latching pin protruding from the rotary shaft such that the latching pin is disposed in the latching groove; and
holding grooves depressed by a predetermined depth at opposite ends of the latching groove in a longitudinal direction of the rotary shaft to hold the latching pin therein.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable capacity rotary compressor has a simplified structure to reduce manufacturing costs and assembling time thereof and is capable of easily and conveniently performing a capacity-changing operation. The variable capacity rotary compressor includes first and second compression chambers having different capacities, a rotary shaft disposed through the first and second compression chambers, first and second eccentric cams mounted at the rotary shaft in the first and second compression chambers, respectively, first and second eccentric bushes rotatably mounted at outer surfaces of the first and second eccentric cams, respectively, a connection part connected between the first and second eccentric bushes, the connection part having a latching groove extending in a rotating direction of the rotary shaft, a latching pin protruding from the rotary shaft such that the latching pin is disposed in the latching groove, and holding grooves depressed by a predetermined depth at opposite ends of the latching groove in a longitudinal direction of the rotary shaft to hold the latching pin therein.
10 Citations
16 Claims
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1. A variable capacity rotary compressor comprising:
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first and second compression chambers having different capacities;
a rotary shaft disposed through the first and second compression chambers;
first and second eccentric cams mounted at the rotary shaft in the first and second compression chambers, respectively;
first and second eccentric bushes rotatably mounted at outer surfaces of the first and second eccentric cams, respectively;
a connection part connecting the first and second eccentric bushes, the connection part having a latching groove extending in a rotating direction of the rotary shaft;
a latching pin protruding from the rotary shaft such that the latching pin is disposed in the latching groove; and
holding grooves depressed by a predetermined depth at opposite ends of the latching groove in a longitudinal direction of the rotary shaft to hold the latching pin therein. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A variable capacity rotary compressor, comprising:
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first and second compression chambers having different volumes;
a rotary shaft disposed through the first and second compression chambers;
a latching pin disposed at the rotary shaft to move to one of first and second positions by a rotation direction of the rotary shaft to activate one of the first and second compression chambers; and
a holding unit including holding grooves to accommodate the latching pin to control the latching pin to remain at the one of the first and second positions until the rotation direction is reversed. - View Dependent Claims (8, 9, 10, 11)
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12. A variable capacity rotary compressor, comprising:
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first and second compression chambers having different volumes;
a rotary shaft disposed through the first and second compression chambers to rotate in a first direction and a second direction; and
an eccentric unit disposed at the rotary shaft to rotate with the shaft at a first position when the rotary shaft rotates in the first direction and at a second position when the rotary shaft rotates in the second direction and to move along the rotary shaft in a longitudinal direction of the rotary shaft by a predetermined distance at the first and second positions to prevent slipping from the first and second positions. - View Dependent Claims (13, 14, 15, 16)
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Specification