Variable volume ratio scroll compressor
First Claim
1. A compressor comprising:
- a scroll member including an end plate and a wrap extending from the end plate, the end plate including a recess, a discharge passage in fluid communication with the recess, and a bypass passage in fluid communication with the recess and disposed radially outward relative to the discharge passage;
a hub received in the recess and including a central opening in fluid communication with the discharge passage and the bypass passage;
a discharge valve disposed between the hub and the end plate and controlling fluid flow through the discharge passage; and
a bypass valve disposed between the hub and the end plate and movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening,wherein the bypass valve is disposed within the recess such that the bypass passage is open to the recess when the bypass valve is in the second position, andwherein the bypass valve includes a valve retainer engaging a reed valve member and defining the second position of the bypass valve.
6 Assignments
0 Petitions
Accused Products
Abstract
A compressor may include a scroll member, a hub, a discharge valve and a bypass valve. An end plate of the scroll member includes a recess, a discharge passage in communication with the recess, and a bypass passage in communication with the recess and disposed radially outward relative to the discharge passage. The hub may be received in the recess and may include a central opening in communication with the discharge passage and the bypass passage. The discharge valve may be disposed between the hub and the end plate and may control fluid flow through the discharge passage. The bypass valve may be disposed between the hub and the end plate and may be movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening.
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Citations
29 Claims
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1. A compressor comprising:
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a scroll member including an end plate and a wrap extending from the end plate, the end plate including a recess, a discharge passage in fluid communication with the recess, and a bypass passage in fluid communication with the recess and disposed radially outward relative to the discharge passage; a hub received in the recess and including a central opening in fluid communication with the discharge passage and the bypass passage; a discharge valve disposed between the hub and the end plate and controlling fluid flow through the discharge passage; and a bypass valve disposed between the hub and the end plate and movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening, wherein the bypass valve is disposed within the recess such that the bypass passage is open to the recess when the bypass valve is in the second position, and wherein the bypass valve includes a valve retainer engaging a reed valve member and defining the second position of the bypass valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A compressor comprising:
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a scroll member including an end plate and a wrap extending from the end plate, the end plate including a recess, a discharge passage in fluid communication with the recess, and first and second bypass passages in fluid communication with the recess and disposed radially outward relative to the discharge passage; a hub received in the recess and including a central opening in fluid communication with the discharge passage and the first and second bypass passages; a discharge valve assembly engaging the hub and disposed between the hub and the end plate, the discharge valve assembly including a discharge valve member movable between a first position restricting fluid flow through the discharge passage and a second position allowing fluid flow through the discharge passage; and first and second bypass valve assemblies disposed between the hub and the end plate and including first and second bypass valve members movable between first positions restricting fluid flow through the first and second bypass passages and second positions allowing fluid flow through the first and second bypass passages. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A compressor comprising:
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a scroll member including an end plate and a wrap extending from the end plate, the end plate including a recess, a discharge passage in fluid communication with the recess, and a bypass passage in fluid communication with the recess and disposed radially outward relative to the discharge passage; a hub received in the recess and including a central opening in fluid communication with the discharge passage and the bypass passage; a discharge valve disposed between the hub and the end plate and controlling fluid flow through the discharge passage; and a bypass valve disposed between the hub and the end plate and movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening, wherein the bypass valve is disposed within the recess such that the bypass passage is open to the recess when the bypass valve is in the second position, and wherein the discharge valve includes a base seated against the end plate and a discharge reed seated against the base, the base includes a passage in fluid communication with the discharge passage, wherein the discharge reed is deflectable relative to the base between a first position in which a free end of the discharge reed sealingly covers the passage and a second position in which the free end uncovers the passage. - View Dependent Claims (27, 28, 29)
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Specification