JPS57116190A - Rotary pump - Google Patents

Rotary pump

Info

Publication number
JPS57116190A
JPS57116190A JP174081A JP174081A JPS57116190A JP S57116190 A JPS57116190 A JP S57116190A JP 174081 A JP174081 A JP 174081A JP 174081 A JP174081 A JP 174081A JP S57116190 A JPS57116190 A JP S57116190A
Authority
JP
Japan
Prior art keywords
bypass
pump
discharge
check valve
rotor
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.)
Pending
Application number
JP174081A
Other languages
Japanese (ja)
Inventor
Toji Takemura
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP174081A priority Critical patent/JPS57116190A/en
Publication of JPS57116190A publication Critical patent/JPS57116190A/en
Pending 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE: To simplify the structure of a rotary pump and to prevent the increasing rate of discharge, accompanying with the increase of rotating speed of a pump, by providing a bypass, which connects the discharge side of a pump to the suction side, to a rotor inside of a pump, and a check valve to the bypass, respectively.
CONSTITUTION: The check valve 27, consisting of a spherical valve body 28, a coil spring 29, and a retainer 30, is fitted to the opening of a bypass 26, as well as to provide the bypass 26, which connects a discharge port 12 with a suction port 14, to a rotor 18, crosswise. The check valve 27 is opened, and a suction chamber 10a and a compression chamber 10b are interconnected to each other, when the rotating speed of a rotor 18 is increased, and the centrifugal force of a spherical valve body 28 becomes larger than the spring tension of a coil spring 29 predetermined, and further, exceeds it. Accordingly, the driving power necessary for a compressing work for a compressor is decreased and the rate of discharge of a refrigerant to the outside can be decreased.
COPYRIGHT: (C)1982,JPO&Japio
JP174081A 1981-01-09 1981-01-09 Rotary pump Pending JPS57116190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP174081A JPS57116190A (en) 1981-01-09 1981-01-09 Rotary pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP174081A JPS57116190A (en) 1981-01-09 1981-01-09 Rotary pump

Publications (1)

Publication Number Publication Date
JPS57116190A true JPS57116190A (en) 1982-07-20

Family

ID=11509954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP174081A Pending JPS57116190A (en) 1981-01-09 1981-01-09 Rotary pump

Country Status (1)

Country Link
JP (1) JPS57116190A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010025799A3 (en) * 2008-09-05 2011-01-06 Ixetic Hückeswagen Gmbh Mono-vane cell vacuum pump having a bypass channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010025799A3 (en) * 2008-09-05 2011-01-06 Ixetic Hückeswagen Gmbh Mono-vane cell vacuum pump having a bypass channel

Similar Documents

Publication Publication Date Title
JPS56101092A (en) Compressor
JPS56129791A (en) Scroll-type compressor
WO2002044562A3 (en) Hermetic compressor
JPS54139107A (en) Hermetic scroll compressor
JPS5786588A (en) Enclosed type scroll compressor
JPS57116190A (en) Rotary pump
JPS57212389A (en) Enclosed scroll compressor
JPS5726294A (en) Method and device for vane extrusion in vaned compressor
JPS5612094A (en) Rotary refrigerant compressor
JPS57165693A (en) Enclosed type compressor
JPS54108914A (en) Volumetric compressor
CN209164084U (en) Compressor
JPS54149002A (en) Gear pump
JPS54100510A (en) Screw type gas compressor
JPS56159582A (en) Freezer
JPS56124698A (en) Volume controller for compressor
JPS5532927A (en) Refrigerant compressor
JPS55156299A (en) Capacity regulator of centrifugal compressor
JPS56592A (en) Adjusting method of centrifugal pump ability
JPS54108915A (en) Disc rotary compressor
JPS57137681A (en) Reversible rotary compressor
JPS5713232A (en) Engine with turbo supercharger
JPS56141090A (en) Rotary type fluid machine
ES8503411A1 (en) Vane pump
JPS57206789A (en) Rotary compressor