JPS5557690A - Eccentric type rotary pump - Google Patents

Eccentric type rotary pump

Info

Publication number
JPS5557690A
JPS5557690A JP12965678A JP12965678A JPS5557690A JP S5557690 A JPS5557690 A JP S5557690A JP 12965678 A JP12965678 A JP 12965678A JP 12965678 A JP12965678 A JP 12965678A JP S5557690 A JPS5557690 A JP S5557690A
Authority
JP
Japan
Prior art keywords
rotor
thermal expansion
casing
expansion coefficient
axis
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
JP12965678A
Other languages
Japanese (ja)
Inventor
Takeshi Okamoto
Keiichiro Tomoari
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP12965678A priority Critical patent/JPS5557690A/en
Publication of JPS5557690A publication Critical patent/JPS5557690A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE: To eliminate backlash at rotor at high temperature by preparing the rotor and the casing made of an aluminum alloy of the same thermal expansion coefficient.
CONSTITUTION: As a drive axis 6 is rotated, each working room 10 changes its volume and air is forced into an inlet 11 and drawn out of an outlet 12. In this operation, no locking tends to take place between the outer periphery of a rotating member 5 and the inner periphery of a casing 2, since the totor 5 and the casing 2 being made of an aluminum alloy have the same thermal expansion coefficient and, accordingly, produce no differences in thermal expansion even at elevated temperatures. Besides, the rotor 5 is captively supported on the axis 6 with an intermediate of a bushing 7 having a higher thermal expansion coefficient than the rotor 5 as well as excellent wear-resisting properties, and no play tends to occur to the support of the rotor 5 on the axis 6 even at elevated temperatures, consequently preventing any backlashes of the former against the latter, resulting further in reducing objectionable noises during operation.
COPYRIGHT: (C)1980,JPO&Japio
JP12965678A 1978-10-20 1978-10-20 Eccentric type rotary pump Pending JPS5557690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12965678A JPS5557690A (en) 1978-10-20 1978-10-20 Eccentric type rotary pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12965678A JPS5557690A (en) 1978-10-20 1978-10-20 Eccentric type rotary pump

Publications (1)

Publication Number Publication Date
JPS5557690A true JPS5557690A (en) 1980-04-28

Family

ID=15014893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12965678A Pending JPS5557690A (en) 1978-10-20 1978-10-20 Eccentric type rotary pump

Country Status (1)

Country Link
JP (1) JPS5557690A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193084U (en) * 1981-05-29 1982-12-07
DE3303247A1 (en) * 1982-02-03 1983-08-18 Diesel Kiki Co. Ltd., Tokyo Vane compressor
DE3726209A1 (en) * 1986-08-08 1988-02-18 Diesel Kiki Co TURNING PISTON COMPRESSORS

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973705A (en) * 1972-10-13 1974-07-16
JPS5216011B2 (en) * 1973-07-26 1977-05-06
JPS5313617A (en) * 1976-07-26 1978-02-07 Sumita Optical Glass Method of embeding hard material in glass
JPS5313617B2 (en) * 1972-11-30 1978-05-11

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973705A (en) * 1972-10-13 1974-07-16
JPS5313617B2 (en) * 1972-11-30 1978-05-11
JPS5216011B2 (en) * 1973-07-26 1977-05-06
JPS5313617A (en) * 1976-07-26 1978-02-07 Sumita Optical Glass Method of embeding hard material in glass

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193084U (en) * 1981-05-29 1982-12-07
DE3303247A1 (en) * 1982-02-03 1983-08-18 Diesel Kiki Co. Ltd., Tokyo Vane compressor
DE3303247C2 (en) * 1982-02-03 1986-09-11 Diesel Kiki Co. Ltd., Tokio/Tokyo Vane compressors
DE3726209A1 (en) * 1986-08-08 1988-02-18 Diesel Kiki Co TURNING PISTON COMPRESSORS

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