JPS55148992A - Rotor of rotary pump utilizing trochoidal curve - Google Patents

Rotor of rotary pump utilizing trochoidal curve

Info

Publication number
JPS55148992A
JPS55148992A JP5721479A JP5721479A JPS55148992A JP S55148992 A JPS55148992 A JP S55148992A JP 5721479 A JP5721479 A JP 5721479A JP 5721479 A JP5721479 A JP 5721479A JP S55148992 A JPS55148992 A JP S55148992A
Authority
JP
Japan
Prior art keywords
less
rotor
rotary pump
pump utilizing
trochoidal curve
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
JP5721479A
Other languages
Japanese (ja)
Inventor
Yasuyoshi Saegusa
Kazue Urashima
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP5721479A priority Critical patent/JPS55148992A/en
Publication of JPS55148992A publication Critical patent/JPS55148992A/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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/103—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/104—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement having an articulated driving shaft

Landscapes

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

Abstract

PURPOSE:To improve the performance of a pump by selecting small eccentricity to reduce the coefficient of fluctuation of combined clearance. CONSTITUTION:When the eccentricity fe=e/B (e; distance between centers, B; diameter of rolling circle) and the number of tooth of inner rotor is assumed n, the eccentricity is selected to be 0.05 or less when n=1, 0.15 or less when n=2, 0.26 or less when n=3, 0.3 or less when n=4, 0.35 or less when n=5, 0.4 or less when n=6...0.495 or less when n=11 and 0.5 or less when n=12 or more. Thus, the coefficient of fluctuation of combined clearance can be reduced to improve remarkably the performance of pump, particularly discharge pressure.
JP5721479A 1979-05-09 1979-05-09 Rotor of rotary pump utilizing trochoidal curve Pending JPS55148992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5721479A JPS55148992A (en) 1979-05-09 1979-05-09 Rotor of rotary pump utilizing trochoidal curve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5721479A JPS55148992A (en) 1979-05-09 1979-05-09 Rotor of rotary pump utilizing trochoidal curve

Publications (1)

Publication Number Publication Date
JPS55148992A true JPS55148992A (en) 1980-11-19

Family

ID=13049266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5721479A Pending JPS55148992A (en) 1979-05-09 1979-05-09 Rotor of rotary pump utilizing trochoidal curve

Country Status (1)

Country Link
JP (1) JPS55148992A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504202A (en) * 1982-07-23 1985-03-12 Sumitomo Electric Industries, Ltd. Sintered rotor for a rotary pump and a manufacturing method for the rotor
US4518332A (en) * 1981-10-22 1985-05-21 Sumimoto Electric Industries, Ltd. Oil pump
JPS61210281A (en) * 1985-03-13 1986-09-18 Yamada Seisakusho:Kk Internal gear pump in trochoidal engagement
JPH02163485A (en) * 1988-12-16 1990-06-22 Mitsubishi Metal Corp Inscribed trochoid rotor
EP2592272A2 (en) 2011-11-08 2013-05-15 Yamada Manufacturing Co., Ltd. Internal gear pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518332A (en) * 1981-10-22 1985-05-21 Sumimoto Electric Industries, Ltd. Oil pump
US4504202A (en) * 1982-07-23 1985-03-12 Sumitomo Electric Industries, Ltd. Sintered rotor for a rotary pump and a manufacturing method for the rotor
JPS61210281A (en) * 1985-03-13 1986-09-18 Yamada Seisakusho:Kk Internal gear pump in trochoidal engagement
JPH02163485A (en) * 1988-12-16 1990-06-22 Mitsubishi Metal Corp Inscribed trochoid rotor
EP2592272A2 (en) 2011-11-08 2013-05-15 Yamada Manufacturing Co., Ltd. Internal gear pump

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