GB1047022A - Improvements in positive displacement compressors - Google Patents

Improvements in positive displacement compressors

Info

Publication number
GB1047022A
GB1047022A GB25976/63A GB2597663A GB1047022A GB 1047022 A GB1047022 A GB 1047022A GB 25976/63 A GB25976/63 A GB 25976/63A GB 2597663 A GB2597663 A GB 2597663A GB 1047022 A GB1047022 A GB 1047022A
Authority
GB
United Kingdom
Prior art keywords
air
receiver
pipe
valve
intake passage
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
GB25976/63A
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of GB1047022A publication Critical patent/GB1047022A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/005—Multi-stage pumps with two cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1,047,022. Air compressors. ATLAS COPCO A.B. July 1, 1963 [July 6, 1962], No. 25976/63. Heading F1N. [Also in Division G3] In a positive displacement compressor, Figs. 1 and 2 (not shown) delivering air through a conduit 15 and a check valve 19 to a receiver 16, an unloading valve 25 responsive to the pressure in the receiver 16 is operative to allow air to be pumped from the compression chamber 32 through a bore 42 and a pipe 43 back into the compressor intake passage 5. An adjustable regulating valve, Fig. 1a (not shown), connected to the receiver 16 through a connection 70 is set to blow at a predetermined pressure whereby a pipe 39 normally connected through the regulating valve to atmosphere, is supplied with air from the receiver. The air supplied to the pipe 39 passes to a passage 38 and an annular space 37 in the unloading valve 25 to act on the large piston portion 26 of a spring loaded valve member 29 which is thereby unseated to communicate the compression chamber 32 with the intake passage 5. The compressor is of the two-stage reciprocating type having high and low pressure cylinders 3, 2 interconnected by an air cooled conduit 11. In another embodiment a throttle valve disposed in the intake passage 5 is closed by air supplied from the pipe 39.
GB25976/63A 1962-07-06 1963-07-01 Improvements in positive displacement compressors Expired GB1047022A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US207874A US3255954A (en) 1962-07-06 1962-07-06 Positive displacement compressors

Publications (1)

Publication Number Publication Date
GB1047022A true GB1047022A (en) 1966-11-02

Family

ID=22772336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25976/63A Expired GB1047022A (en) 1962-07-06 1963-07-01 Improvements in positive displacement compressors

Country Status (3)

Country Link
US (1) US3255954A (en)
DE (1) DE1403953A1 (en)
GB (1) GB1047022A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319569A (en) * 1996-11-22 1998-05-27 Knorr Bremse Systeme Unloading gas compressors

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367562A (en) * 1966-06-23 1968-02-06 Atlas Copco Ab Means for unloading and controlling compressor units
US3411705A (en) * 1966-11-29 1968-11-19 Westinghouse Electric Corp Refrigeration compressor
US3448916A (en) * 1967-06-16 1969-06-10 Ingersoll Rand Co Unloading system for compressors
CH634898A5 (en) * 1978-12-15 1983-02-28 Rockwell International Corp Air compressor
DE2918482A1 (en) * 1979-05-08 1980-11-13 Wabco Fahrzeugbremsen Gmbh CONTROL OF COMPRESSED AIR GENERATOR SYSTEMS
JPS6047479B2 (en) * 1979-09-18 1985-10-22 有光工業株式会社 Multiple reciprocating pump
US4407640A (en) * 1979-09-18 1983-10-04 Arimitsu Industry Co., Ltd. Reciprocating pump having unique pressure control valve construction
JPS56121888A (en) * 1980-02-29 1981-09-24 Tokico Ltd Oil-cooled compressor
US4373870A (en) * 1980-07-17 1983-02-15 General Motors Corporation Variable capacity positive displacement type compressor
DE3042069A1 (en) * 1980-11-07 1982-06-16 Knorr-Bremse GmbH, 8000 München VALVE DEVICE FOR A PNEUMATICALLY CONTROLLED COMPRESSOR SHUT-OFF COUPLING
DE3136948A1 (en) * 1981-09-17 1983-03-31 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover DEVICE FOR PRODUCING PRESSURE GAS
US4759692A (en) * 1987-06-22 1988-07-26 Tecumseh Products Company Integral internal pressure relief valve
US4835849A (en) * 1987-06-22 1989-06-06 Tecumseh Products Company Method of making an integral internal pressure relief valve
DE502005002636D1 (en) * 2004-10-19 2008-03-13 Voith Patent Gmbh Multi-stage reciprocating compressor with reduced power consumption during idling
DE102009053133A1 (en) * 2009-11-05 2011-05-12 Voith Patent Gmbh Piston compressor with idling valve
DE102012108576A1 (en) * 2012-09-13 2014-03-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Multi-stage reciprocating compressor with idling valves for generating an idling function
DE102016105144B4 (en) * 2016-03-21 2018-02-15 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Dry running piston compressor with crank mechanism cooling

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US685704A (en) * 1899-07-15 1901-10-29 Melville C Wilkinson Device for controlling the use of compressed air.
US953617A (en) * 1908-06-26 1910-03-29 Herbert T Herr Automatic controlling device for fluid-compressors.
US1176998A (en) * 1914-04-16 1916-03-28 Thomas Franklin Pence Automatic regulator for air-compressors.
US1211074A (en) * 1914-12-05 1917-01-02 Ingersoll Rand Co Regulator for fluid-compressors.
US1240539A (en) * 1914-12-05 1917-09-18 Ingersoll Rand Co Regulator for fluid-compressors.
US1625780A (en) * 1925-11-28 1927-04-26 Atkins And Company Inc Differential-pressure valve
US2042085A (en) * 1933-11-11 1936-05-26 Westinghouse Air Brake Co Compressor unloader
US2415060A (en) * 1942-10-31 1947-01-28 Crosley Corp Pumping system
US2726032A (en) * 1954-04-07 1955-12-06 Gen Electric Compressor, including unloading head
US2856121A (en) * 1955-09-07 1958-10-14 Creamery Package Mfg Co Fluid motivating apparatus
US2984404A (en) * 1956-03-06 1961-05-16 Honeywell Regulator Co Control mechanism
US2928646A (en) * 1958-06-10 1960-03-15 Clifford L Ashbrook Chlorine flow control valve
US3076593A (en) * 1958-09-15 1963-02-05 Alwin B Newton Flow regulator for piston-equipped cylinder
US3022040A (en) * 1959-03-25 1962-02-20 United Aircraft Corp Compressor bleed valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319569A (en) * 1996-11-22 1998-05-27 Knorr Bremse Systeme Unloading gas compressors

Also Published As

Publication number Publication date
US3255954A (en) 1966-06-14
DE1403953A1 (en) 1968-11-21

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