Variable speed scroll compressor

Patent metadata

Field	Value
Publication number	US-9605676-B2
Application number	US-201414282323-A
Country	US
Kind code	B2
Filing date	May 20, 2014
Priority date	May 31, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A compressor is provided and may include a driveshaft and an orbiting scroll member driven by the driveshaft. The orbiting scroll member may include an end plate, a spiral wrap extending from the end plate, and a chamber formed by the orbiting scroll member and disposed on an opposite side of the end plate than the spiral wrap. A counterweight may be fixed for rotation with the driveshaft and may be received within the chamber of the orbiting scroll member.

First claim

What is claimed is:

1. A compressor comprising:
a driveshaft;
an orbiting scroll member driven by said driveshaft and including a first member and a second member that are separate components, said first member including an end plate and a spiral wrap extending from said end plate, said first member and said second member cooperating to form a chamber therebetween, said chamber being disposed on an opposite side of said end plate than said spiral wrap; and
a counterweight fixed for rotation with said driveshaft and received within said chamber of said orbiting scroll member.

2. The compressor of claim 1 , wherein said second member has a hub portion, a wall portion, and a base portion extending between and connecting said wall portion and said hub portion, said base portion opposing said end plate and defining a chamber therebetween.

3. A compressor comprising:
a driveshaft;
an orbiting scroll member driven by said driveshaft and including an end plate, a spiral wrap extending from said end plate, a hub portion, and a chamber formed by said orbiting scroll member and disposed on an opposite side of said end plate than said spiral wrap;
a bushing disposed between said hub portion and said driveshaft; and
a counterweight fixed for rotation with said driveshaft via said bushing and received within said chamber of said orbiting scroll member, wherein said counterweight includes a first portion attached to said bushing, a second portion extending from said first portion and info said chamber in a direction away from said end plate, and a third portion extending from said first portion, into said chamber, and in a direction toward said end plate.

4. A compressor comprising:
a driveshaft;
an orbiting scroll member driven by said driveshaft and including a first member having an end plate and a spiral wrap extending from said end plate and a second member having a hub portion, a wall portion, and a base portion extending between and connecting said wall portion and said hub portion, said base portion opposing said end plate and defining a chamber therebetween; and
a counterweight fixed for rotation with said driveshaft and received within said chamber of said orbiting scroll member.

5. The compressor of claim 4 , further comprising a bushing disposed between said hub portion and said driveshaft, said counterweight fixed for rotation with said driveshaft via said bushing.

6. The compressor of claim 5 , wherein said counterweight includes a first portion attached to said bushing and a second portion extending from said first portion and into said chamber in a direction away from said end plate.

7. The compressor of claim 6 , wherein said first portion is attached to a distal end of said bushing and said bushing is attached at a distal end of said driveshaft.

8. The compressor of claim 6 , wherein said first portion is attached to an outer surface of said bushing along a length of said bushing between a first end and a second end, said bushing being attached to said driveshaft at a distal end of said driveshaft.

9. The compressor of claim 8 , wherein said counterweight includes a third portion extending from said first portion, into said chamber, and in a direction toward said end plate.

10. The compressor of claim 4 , wherein said wall portion extends from said base portion toward said first member by a greater extent than said hub portion.

11. The compressor of claim 4 , further comprising at least one seal at a junction of said wall portion and said first member.

12. The compressor of claim 4 , further comprising a passageway formed through said base portion, said passageway operable to permit fluid to drain from said chamber.

13. The compressor of claim 4 , further comprising a recess formed in said end plate on an opposite side of said end plate than said spiral wrap, said recess receiving an insulation element therein.

14. The compressor of claim 4 , wherein said first member and said second member are separate components.

15. The compressor of claim 1 , wherein said second member defines a hub portion.

16. The compressor of claim 15 , further comprising a bushing disposed between said hub portion and said driveshaft, said counterweight fixed for rotation with said driveshaft via said bushing.

17. The compressor of claim 16 , wherein said counterweight includes a first portion attached to said bushing and a second portion extending from said first portion and into said chamber in a direction away from said end plate.

18. The compressor of claim 17 , wherein said first portion is attached to a distal end of said bushing and said bushing is attached at a distal end of said driveshaft.

19. The compressor of claim 17 , wherein said first portion is attached to an outer surface of said bushing along a length of said bushing between a first end and a second end, said bushing being attached to said driveshaft at a distal end of said driveshaft.

20. The compressor of claim 15 , wherein said second member includes a base portion and a wall portion surrounding said hub portion and attached to said first member, said wall portion extending from said base portion of said second member toward said first member by a greater extent than said hub portion.

21. The compressor of claim 20 , further comprising a passageway formed through said base portion, said passageway operable to permit fluid to drain from said chamber.

Assignees

• Emerson Climate Technologies

Inventors

• Ignatiev Kirill M
• Perevozchikov Michael M

Classifications

• F04C29/023

  Lubricant distribution through a hollow driving shaft (F04C29/025 takes precedence) · CPC title

• F04C18/0215

  where only one member is moving · CPC title

• F04C2240/807

  Balance weight, counterweight · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F04C29/0057 Primary

  for eccentric movement · CPC title