IP Library › Granted Patent US 12,669,126
Granted Patent B2
US 12,669,126 · App. 18/753,630 · Granted Jun 30, 2026

Compressor having shutdown valve assembly

Inventors: Yogesh S. Mahure (Pune, IN); Nikhil Naik (Pune, IN); Mohak Behl (Pune, IN)
Assignee: Copeland LP
F04C29/124F04C18/0215F04C29/126
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Quick Facts
Patent No.
US 12,669,126
App. No.
18/753,630
Filed
Jun 25, 2024
Granted
Jun 30, 2026
Kind
B2
Art Unit
3746
USPC
418/55.1
Abstract

A compressor may a first scroll, a second scroll, and a valve assembly. The second scroll may include a discharge passage. The valve assembly may include a valve housing fixed relative to the second scroll and a valve member movably received in the valve housing. The valve housing may include a plurality of angled apertures that are angled relative to a direction in which the valve member moves between the open and closed positions. The valve member is movable relative to the valve housing and valve retainer between an open position and a closed position. When the valve member is in the open position, fluid is allowed to flow through the discharge passage and the angled apertures in the valve housing. When the valve member is in the closed position, fluid flow through the discharge passage and the angled apertures is restricted.

Claims (43)

1 . A compressor comprising:

a first scroll having a first end plate and a first spiral wrap extending from the first end plate;

a second scroll having a second end plate and a second spiral wrap extending from the second end plate and meshing with the first spiral wrap to define fluid pockets therebetween, wherein the second end plate includes a discharge passage and a discharge recess; and

a valve assembly disposed at least partially within the discharge recess and including a valve housing fixed relative to the second scroll, a valve retainer fixed relative to the valve housing, and a valve member movably received in the valve housing,

wherein:

the valve member is movable relative to the valve housing and valve retainer between an open position and a closed position,

when the valve member is in the open position, fluid is allowed to flow through the discharge passage and the valve assembly,

when the valve member is in the closed position, fluid flow through the discharge passage and the valve assembly is restricted, and

the valve housing includes a plurality of angled apertures that are angled relative to a direction in which the valve member moves between the open and closed positions, and

when the valve member is in the open position, the valve member uncovers the angled apertures to allow fluid communication between the discharge passage and an annular gas flow path, wherein the annular gas flow path is defined by and disposed radially between an inner diametrical surface of a hub of the second scroll and an outer diametrical surface of the valve housing.

2 . The compressor of claim 1 , wherein the angled apertures in the valve housing extend between an inner diametrical surface of the valve housing and the outer diametrical surface of the valve housing.

3 . The compressor of claim 2 , wherein the openings of the angled apertures at the inner diametrical surface of the valve housing are disposed between the valve member and the discharge passage when the valve member is in the open position.

4 . The compressor of claim 3 , wherein a radially outer surface of the valve member covers the openings of the angled apertures when the valve member is in the closed position.

5 . The compressor of claim 4 , wherein the radially outer surface of the valve member slidingly contacts the inner diametrical surface of the valve housing as the valve member moves between the open and closed positions.

6 . The compressor of claim 3 , wherein the valve housing includes a gas-return aperture, and wherein the gas-return aperture and the angled apertures are in fluid communication with a discharge-pressure region of the compressor.

7 . The compressor of claim 6 , wherein the valve housing includes a projection that extends into an interior volume of the valve housing and includes an axial end surface that defines a stop for the valve member in the open position.

8 . The compressor of claim 7 , wherein the gas-return aperture extends through the axial end surface of the projection.

9 . The compressor of claim 1 , wherein the valve retainer defines a valve seat that contacts the valve member when the valve member is in the closed position, and wherein the valve seat defines an opening that is in fluid communication with the discharge passage.

10 . The compressor of claim 1 , wherein:

the valve housing includes a base portion and a body portion,

the base portion has a larger diameter than the body portion and fixedly engages an inner diametrical surface of a hub of the second scroll,

the angled apertures are disposed in the body portion.

11 . A compressor comprising:

a first scroll having a first end plate and a first spiral wrap extending from the first end plate;

a second scroll having a second end plate and a second spiral wrap extending from the second end plate and meshing with the first spiral wrap to define fluid pockets therebetween, wherein the second end plate includes a discharge passage; and

a valve assembly including a valve housing fixed relative to the second scroll, a valve retainer fixed relative to the valve housing, and a valve member movably received in the valve housing,

wherein:

the valve housing includes a plurality of angled apertures that are angled relative to a direction in which the valve member moves between the open and closed positions,

the valve member is movable relative to the valve housing and valve retainer between an open position and a closed position,

when the valve member is in the open position, fluid is allowed to flow through the discharge passage and through the angled apertures in the valve housing,

when the valve member is in the closed position, fluid flow through the discharge passage and the angled apertures is restricted, and

when the valve member is in the open position, the valve member uncovers the angled apertures to allow fluid communication between the discharge passage and an annular gas flow path, wherein the annular gas flow path is defined by and disposed radially between an inner diametrical surface of a hub of the second scroll and an outer diametrical surface of the valve housing.

12 . The compressor of claim 11 , wherein the angled apertures in the valve housing extend between an inner diametrical surface of the valve housing and the outer diametrical surface of the valve housing.

13 . The compressor of claim 12 , wherein the openings of the angled apertures at the inner diametrical surface of the valve housing are disposed between the valve member and the discharge passage when the valve member is in the open position.

14 . The compressor of claim 13 , wherein a radially outer surface of the valve member covers the openings of the angled apertures when the valve member is in the closed position.

15 . The compressor of claim 14 , wherein the radially outer surface of the valve member slidingly contacts the inner diametrical surface of the valve housing as the valve member moves between the open and closed positions.

16 . The compressor of claim 13 , wherein the valve housing includes a gas-return aperture, and wherein the gas-return aperture and the angled apertures are in fluid communication with a discharge-pressure region of the compressor.

17 . The compressor of claim 16 , wherein the valve housing includes a projection that extends into an interior volume of the valve housing and includes an axial end surface that defines a stop for the valve member in the open position.

18 . The compressor of claim 17 , wherein the gas-return aperture extends through the axial end surface of the projection.

19 . The compressor of claim 11 , wherein the valve retainer defines a valve seat that contacts the valve member when the valve member is in the closed position, and wherein the valve seat defines an opening that is in fluid communication with the discharge passage.

20 . The compressor of claim 11 , wherein:

the valve housing includes a base portion and a body portion, the base portion has a larger diameter than the body portion and fixedly engages the inner diametrical surface of the hub of the second scroll,

the angled apertures are disposed in the body portion.

Assignments (5)
SECURITY INTEREST Recorded Feb 4, 2025
From: COPELAND LP
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070100/0081 →
SECURITY INTEREST Recorded Feb 4, 2025
From: COPELAND LP
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 070100/0169 →
SECURITY INTEREST Recorded Feb 3, 2025
From: COPELAND LP; COPELAND COLD CHAIN LP; COPELAND COMFORT CONTROL LP; COPELAND SCROLL COMPRESSORS LP; COPELAND INDUSTRIAL LP
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 070094/0094 →
SECURITY INTEREST Recorded Feb 3, 2025
From: COPELAND LP; COPELAND SCROLL COMPRESSORS LP; COPELAND INDUSTRIAL LP; COPELAND COMFORT CONTROL LP; COPELAND COLD CHAIN LP
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 070568/0920 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2024
From: MAHURE, YOGESH S.; NAIK, NIKHIL; BEHL, MOHAK
To: COPELAND LP
Reel/Frame 067841/0199 →
Priority Claims (1)
IN 202321053150 · Aug 8, 2023 · national
Continuity (1)
Related Publication 20250052244A1 · Feb 13, 2025
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