GB1067395A - Refrigerant compressor control - Google Patents

Refrigerant compressor control

Info

Publication number
GB1067395A
GB1067395A GB8662/65A GB866265A GB1067395A GB 1067395 A GB1067395 A GB 1067395A GB 8662/65 A GB8662/65 A GB 8662/65A GB 866265 A GB866265 A GB 866265A GB 1067395 A GB1067395 A GB 1067395A
Authority
GB
United Kingdom
Prior art keywords
conduit
compressor
cylinder
space
unloading device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8662/65A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lennox Industries Inc
Original Assignee
Lennox Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lennox Industries Inc filed Critical Lennox Industries Inc
Publication of GB1067395A publication Critical patent/GB1067395A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

Abstract

1,067,395. Compressors. LENNOX INDUSTRIES Inc. March 1, 1965 [Oct.19, 1964], No. 8662/65. Heading F1N. [Also in Division G3] In a hermetically sealed refrigerant compressor unit (10), Fig. 1 (not shown), in which the compressor (18) and its driving motor (44) are mounted in an inner shell (50, 20, 26) itself mounted in a sealed outer shell (12, 13), an unloading device (86) is disposed within the outer shell and is operable to direct some or all the compressor output to the space between the inner and outer shells. The unloading device (86) is controlled by a pilot valve (88) operated by a thermostat or by suction pressure. In the inoperative position of the pilot valve (88) a conduit (93) connected to the unloading device (86) is subjected to the discharge pressure communicated thereto through the valve (88) and a conduit (92) leading to the discharge manifold (78). The discharge pressure in the conduit (93) urges a valve member (109), Fig.3, (not shown) into engagement with a seat (111) whereby the gas discharged from the cylinder (30C) passes through a passageway (77) and conduits (104, 108) to an annular muffle chamber (78a) (shown developed in Fig.3) which communicates through an opening (98) with the discharge manifold (78) which has an outlet (102). Operation of the pilot valve (88) causes connection of the conduit (93) to suction pressure in the space between the inner and outer shells whereby the valve member (109) moves away from the seat (111) and the gas discharged from the cylinder (30C) passes through the conduit (104) and an outlet (106) to be returned to the suction space between the inner and outer shells. The compressor (18) has four radially disposed cylinders, two of which (30A, 30C) are provided with unloading devices (86), (86') and hence one quarter or one half of the compressor output may be unloaded. Gas enters the outer shell through an inlet (82) and flows through apertures in a mounting flange (27) before entering the inner shell through an aperture (51) to cool the motor (44) and pass to openings (84) in communication with the cylinder suction valves.
GB8662/65A 1964-10-19 1965-03-01 Refrigerant compressor control Expired GB1067395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404847A US3272426A (en) 1964-10-19 1964-10-19 Refrigerant compressor control

Publications (1)

Publication Number Publication Date
GB1067395A true GB1067395A (en) 1967-05-03

Family

ID=23601292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8662/65A Expired GB1067395A (en) 1964-10-19 1965-03-01 Refrigerant compressor control

Country Status (4)

Country Link
US (1) US3272426A (en)
DE (1) DE1501084A1 (en)
GB (1) GB1067395A (en)
NL (1) NL6513097A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238085A (en) * 1988-08-29 1991-05-22 Carrier Corp Staged unloading of cylinder bank
EP0592810A1 (en) * 1992-10-16 1994-04-20 Whirlpool Europe B.V. Device acting as a bearing and as a support and upper guide for a drive shaft in a motor-compressor unit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796521A (en) * 1971-09-03 1974-03-12 Lennox Ind Inc Compressor with motor air gap adjustment
BE792962A (en) * 1971-12-20 1973-06-19 Westinghouse Electric Corp HERMETIC COMPRESSOR WITH A MECHANISM TO DISABLE SOME OF THE CYLINDERS
JPS569097Y2 (en) * 1973-05-16 1981-02-27
JPS51149405U (en) * 1975-05-23 1976-11-30
US5007807A (en) * 1989-03-08 1991-04-16 Tecumseh Products Company Hermetic compressor having resilient internal mounting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1484674A (en) * 1923-05-16 1924-02-26 Ingersoll Rand Co Pilot valve for compressors
US2836345A (en) * 1954-02-26 1958-05-27 Capacity control for compressors
US3171588A (en) * 1962-05-22 1965-03-02 Westinghouse Electric Corp Hermetic compressors having vertical crankshafts
US3209985A (en) * 1963-07-11 1965-10-05 Borg Warner Capacity control mechanisms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238085A (en) * 1988-08-29 1991-05-22 Carrier Corp Staged unloading of cylinder bank
GB2238085B (en) * 1988-08-29 1993-12-08 Carrier Corp Staged unloading of cylinder bank
EP0592810A1 (en) * 1992-10-16 1994-04-20 Whirlpool Europe B.V. Device acting as a bearing and as a support and upper guide for a drive shaft in a motor-compressor unit

Also Published As

Publication number Publication date
NL6513097A (en) 1966-04-20
US3272426A (en) 1966-09-13
DE1501084A1 (en) 1969-10-02

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