Gene E Fields

US Patent:

6488489, Dec 3, 2002

Filed:

Feb 26, 2001

Appl. No.:

09/793369

Inventors:

John R. Williams - Bristol VA
Joe T. Hill - Bristol VA
Gene M. Fields - Arkadelphia AR
Tracy Milliff - Bristol VA
Michael R. Young - Wichita KS

Assignee:

Scroll Technologies - Arkadelphia AR

International Classification:

F04C 1804

US Classification:

418 551, 29888022, 384276, 384295

Abstract:

An improved method of aligning the bearing components within a scroll compressor includes the step of mounting the crankcase to be an interference fit within the center shell, and having a surface abutting a true upper surface of the shell. This ensures that the axis of the bearing in the crankcase is idealized and centered on the center axis of the center shell. At the same time, the lower bearing is mounted on the lower end cap, and is also cut to be concentric with a force fit outer surface of the end cap. This ensures the lower bearing is also centered on the inner periphery of the center shell. Once it is ensured the center shell is true, then it is also thus ensured the upper and lower bearings are aligned on a common axis. An improved lower bearing structure with a reverse taper is also disclosed.

US Patent:

6619934, Sep 16, 2003

Filed:

Aug 22, 2002

Appl. No.:

10/225827

Inventors:

Joseph F. Loprete - Bristol TN
John R. Williams - Arkadelphia AR
Gene Michael Fields - Arkadelphia AR
Joe T. Hill - Arkadelphia AR

Assignee:

Scroll Technologies - Arkadelphia AK

International Classification:

F04B 1704

US Classification:

4174105, 417310, 417440, 417299

Abstract:

Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.

US Patent:

6722861, Apr 20, 2004

Filed:

Jun 4, 2003

Appl. No.:

10/454340

Inventors:

Joseph F. Loprete - Bristol TN
John R. Williams - Arkadelphia AR
Gene Michael Fields - Arkadelphia AR
Joe T. Hill - Arkadelphia AR

Assignee:

Scroll Technologies - Arkadelphia AR

International Classification:

F04B 1700

US Classification:

4174105, 417326, 418 551, 475 12

Abstract:

Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.

US Patent:

7083397, Aug 1, 2006

Filed:

Jun 4, 1998

Appl. No.:

09/090358

Inventors:

Joseph F. Loprete - Bristol TN, US
John R. Williams - Arkadelphia AR, US
Gene Michael Fields - Arkadelphia AR, US
Joe T. Hill - Arkadelphia AR, US

Assignee:

Scroll Technologies - Arkadelphia AR

International Classification:

F04B 17/00

US Classification:

4174105, 326319, 418 69

Abstract:

Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.

US Patent:

20110135523, Jun 9, 2011

Filed:

Dec 9, 2009

Appl. No.:

12/633839

Inventors:

John R. Williams - Bristol VA, US
Tracy L. Milliff - Arkadelphia AR, US
Gene M. Fields - Arkadelphia AR, US
Zili Sun - Arkadelphia AR, US
Edward A. Tomayko - Arkadelphia AR, US
Gregory W. Hahn - Arkadelphia AR, US
Thomas R. Barito - Arkadelphia AR, US
Carlos Zamudio - Lyon, FR
Joe T. Hill - Arkadelphia AR, US

International Classification:

F04C 29/00
F04C 18/02

US Classification:

418 554, 418104

Abstract:

A spacer is positioned between an outer periphery of a motor stator, and the inner periphery of a center shell for a sealed compressor. The spacer allows a relatively small diameter motor to be used in a relatively large diameter center shell. The spacer includes a bearing mount in a lower plate, and a plurality of axially extending fingers positioned between the stator and the center shell. The spacer also includes a stop for proper positioning of the stator within the center shell.

US Patent:

54217091, Jun 6, 1995

Filed:

May 10, 1994

Appl. No.:

8/240187

Inventors:

Joe T. Hill - Bristol VA
John R. Williams - Bristol TN
Gene M. Fields - Bristol TN
Robert E. Utter - Whitehouse TX
John K. Wollitz - Tyler TX

Assignee:

Alliance Compressors Inc. - Tyler TX

International Classification:

F01L 104

US Classification:

418 556

Abstract:

A high-side co-rotating refrigerant scroll compressor defines a lubricant sump in its discharge pressure portion. Lubricant is directed from that sump, through a passage which is at least partially defined by the shell of the compressor, to the bearings in which the scroll members rotate. Heat carried in the lubricant flowing through the passage is transferred through the compressor shell to the ambient. Subsequent to having lubricated the bearing in which the drive scroll member rotates, lubricant is diverted into a passage defined by the drive scroll member drive shaft and enters the stream of compressed discharge gas flowing therethrough. The lubricant is thereby prevented from entering the suction pressure portion of the compressor where it would otherwise heat compressor suction gas prior to the entry of that gas into the compressor's compression mechanism.

US Patent:

60301929, Feb 29, 2000

Filed:

Nov 26, 1997

Appl. No.:

8/979878

Inventors:

Joe T. Hill - Bristol VA
Gene M. Fields - Bristol TN
John R. Williams - Bristol TN
Terry L. Lyons - Bluff City TN

Assignee:

Bristol Compressors, Inc. - Bristol VA

International Classification:

F04C 1804

US Classification:

418 552

Abstract:

A scroll compressor having a housing containing an orbiting scroll and a non-orbiting scroll each having a base formed with a free side and a compression side and having an involute extending generally normally from the compression side, each the involute terminating in an axially outer, substantially planar edge and having a radially outer inlet end and a radially inner discharge end, the scrolls being mounted within the housing in mating arrangement about a center axis of the involutes for relative orbital motion for compressing gas between the base and adjacent side portions of the involutes, the orbiting scroll having special bearing structure for eliminating the laterally directed tipping forces which are generally experienced by the orbiting scrolls of conventional scroll compressors, the bearing structure having a bearing hub integral with the discharge end of the involute of the orbiting scroll, the hub having a cylindrical bore oriented substantially normal to the compression side of the orbiting scroll for rotatably receiving an eccentric shaft section of a compressor crankshaft, bearing means formed axially thru the base of the non-orbiting scroll, a crankshaft having an axial section and an eccentric section, the axial section being rotatably mounted in the bearing and the eccentric section being rotatably mounted in the hub, whereby rotation of the crankshaft will move the orbiting scroll thru an orbit relative to the non-orbiting scroll to thereby generate compression pockets between both the base and the involutes.

US Patent:

62032992, Mar 20, 2001

Filed:

Dec 21, 1998

Appl. No.:

9/216997

Inventors:

John R. Williams - Bristol VA
Gene Michael Fields - Arkadelphia AR
Joe T. Hill - Bristol VA
Tracy Milliff - Bristol VA
Terry L. Lyons - Bluff City TN

Assignee:

Scroll Technologies - Arkadelphia AR

International Classification:

F03C 200

US Classification:

418 554

Abstract:

A scroll compressor is provided with structure that allows a reduction or modulation in mass flow capacity. Structure is provided for controlling the back pressure force tending to bias one scroll into other. This structure defines two distinct back pressure chambers. Pressure fluid is not supplied to at least one of the back pressure chambers during modulated operation.