SE7910423L - DOUBLE OPERATING VACUUM PUMP - Google Patents

DOUBLE OPERATING VACUUM PUMP

Info

Publication number
SE7910423L
SE7910423L SE7910423A SE7910423A SE7910423L SE 7910423 L SE7910423 L SE 7910423L SE 7910423 A SE7910423 A SE 7910423A SE 7910423 A SE7910423 A SE 7910423A SE 7910423 L SE7910423 L SE 7910423L
Authority
SE
Sweden
Prior art keywords
piston
vacuum pump
act
spring
valve
Prior art date
Application number
SE7910423A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
K Jeschke
H Rossel
Original Assignee
Pierburg Gmbh & Co Kg
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 Pierburg Gmbh & Co Kg filed Critical Pierburg Gmbh & Co Kg
Publication of SE7910423L publication Critical patent/SE7910423L/en

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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • 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
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

This invention relates to a double- action vacuum pump with a piston 2, separating two working chambers 3,4, each equipped with an inlet valve 7,8 and an outlet valve 5,6 and in which the inlet valves communicate with a vacuum tank 11. According to the invention the two working chambers are arranged to act in parallel until the pressure in the tank has decreased to a certain critical low value, after which they act in series. Preferably to this end the piston incorporates at least one spring-loaded non-return transfer valve 14. Alternatively, the piston may incorporate two spring-loaded non-return transfer valves working in opposite flow-directions. <IMAGE>
SE7910423A 1978-12-22 1979-12-18 DOUBLE OPERATING VACUUM PUMP SE7910423L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2855608A DE2855608C2 (en) 1978-12-22 1978-12-22 Double acting vacuum pump

Publications (1)

Publication Number Publication Date
SE7910423L true SE7910423L (en) 1980-06-23

Family

ID=6058075

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7910423A SE7910423L (en) 1978-12-22 1979-12-18 DOUBLE OPERATING VACUUM PUMP

Country Status (7)

Country Link
JP (1) JPS55123384A (en)
DE (1) DE2855608C2 (en)
ES (1) ES247408Y (en)
FR (1) FR2445903B1 (en)
GB (1) GB2040361B (en)
IT (1) IT1162462B (en)
SE (1) SE7910423L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821321A1 (en) * 1988-06-24 1989-12-28 Teves Gmbh Alfred Pressure source for a hydraulic brake system
DE4331910C2 (en) * 1993-09-20 1997-05-28 Aisan Ind Reciprocating fluid pump
CH690414A5 (en) * 1994-11-03 2000-09-15 Breitschmid Ag Cleaning brush, particularly for dentures.
GB9604645D0 (en) * 1996-03-01 1996-05-01 Boc Group Plc Improvements in vacuum pumps
US6427453B1 (en) 1998-07-31 2002-08-06 The Texas A&M University System Vapor-compression evaporative air conditioning systems and components
GB2369411B (en) * 2000-11-23 2002-10-09 Carmeli Adahan Pump
DE10318735A1 (en) * 2003-04-25 2004-11-11 Leybold Vakuum Gmbh Vacuum pump
DE102010005696A1 (en) 2010-01-25 2011-07-28 Brügmann und Freyermuth OHG "cad.Kat"- und "Euro Trax" Sonderkonstruktionen, 24159 Lifting hook for supporting facilities, such as boat trailers and supporters, has motor and two motor-driven wheels, where wheels are mounted on axle, and coupling device is arranged against operating rod behind wheels
EP2567161B1 (en) * 2010-05-05 2020-07-01 InvenSor GmbH Negative-pressure tank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE513137C (en) * 1930-11-24 Isaak Julius Awrach Dipl Ing Piston air pump
DE129348C (en) *
DE21253C (en) * A. BURCKHARDT (in Firma BURCKHARDT & CO.) und F. J. WEISS in Basel Device for reducing the influence of harmful space in air pumps
DE213855C (en) *
GB169201A (en) * 1920-05-19 1921-09-19 Worthington Pump & Mach Corp Improvements in vacuum pumps particularly for use with condenser systems
FR813038A (en) * 1935-08-08 1937-05-25 Bosch Robert Double acting single piston pump
FR829149A (en) * 1937-02-06 1938-06-13 Further training in reciprocating vacuum pumps
US2246932A (en) * 1939-09-21 1941-06-24 Chicago Pneumatic Tool Co Combination single and two stage vacuum pump
DE1154420B (en) * 1962-02-14 1963-09-19 August Goettker Erben Flachboh Portable drilling rig

Also Published As

Publication number Publication date
FR2445903A1 (en) 1980-08-01
IT1162462B (en) 1987-04-01
FR2445903B1 (en) 1986-07-25
DE2855608C2 (en) 1984-10-25
GB2040361B (en) 1983-04-13
JPS55123384A (en) 1980-09-22
IT7950738A0 (en) 1979-11-05
DE2855608A1 (en) 1980-06-26
ES247408U (en) 1980-04-01
GB2040361A (en) 1980-08-28
ES247408Y (en) 1980-10-01

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