JPS55153881A - Helical type double-axle rotary fluid pump - Google Patents

Helical type double-axle rotary fluid pump

Info

Publication number
JPS55153881A
JPS55153881A JP5100279A JP5100279A JPS55153881A JP S55153881 A JPS55153881 A JP S55153881A JP 5100279 A JP5100279 A JP 5100279A JP 5100279 A JP5100279 A JP 5100279A JP S55153881 A JPS55153881 A JP S55153881A
Authority
JP
Japan
Prior art keywords
gearing
rotors
fluid pump
type double
suction
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
JP5100279A
Other languages
Japanese (ja)
Inventor
Komei Yokoi
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.)
ANRETSUTO KK
Anlet Co Ltd
Original Assignee
ANRETSUTO KK
Anlet 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 ANRETSUTO KK, Anlet Co Ltd filed Critical ANRETSUTO KK
Priority to JP5100279A priority Critical patent/JPS55153881A/en
Publication of JPS55153881A publication Critical patent/JPS55153881A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotary Pumps (AREA)

Abstract

PURPOSE: To remarkably shorten the axial length to fully miniaturize by gearing a pair of rotors twisted at least over 360° making a helical angle of 72W50° with n- pieces of teeth formed in a trochoidal curve.
CONSTITUTION: A plural number of grooves 4 of each screw of the rotors 1, 2 are closed with the changing axial position by gearing into a plural number of teeth 3 of the other rotor. The spaces having a gearing part near the discharge opening 15 have a gearing part also at the part near the suction opening 13 by an angle of twist over 360° and the spaces are blocked up at two spots near both ends. Consequently, even in case the contact of the gear near the discharge part 15 is eliminated by the rotation of both rotors 1, 2 to the gearing direction causing the counter-flow of the high compression pressure to the direction of the suction part 13, said counter-flow is checked by the contact part in the direction of the suction part.
COPYRIGHT: (C)1980,JPO&Japio
JP5100279A 1979-04-24 1979-04-24 Helical type double-axle rotary fluid pump Pending JPS55153881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5100279A JPS55153881A (en) 1979-04-24 1979-04-24 Helical type double-axle rotary fluid pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5100279A JPS55153881A (en) 1979-04-24 1979-04-24 Helical type double-axle rotary fluid pump

Publications (1)

Publication Number Publication Date
JPS55153881A true JPS55153881A (en) 1980-12-01

Family

ID=12874560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5100279A Pending JPS55153881A (en) 1979-04-24 1979-04-24 Helical type double-axle rotary fluid pump

Country Status (1)

Country Link
JP (1) JPS55153881A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216089A (en) * 1984-04-11 1985-10-29 Hitachi Ltd Screw vacuum pump
JPS61223295A (en) * 1985-03-27 1986-10-03 Hitachi Ltd Vacuum pump with oil-free screw
JPS63176684A (en) * 1987-01-16 1988-07-20 Hayashi Seiko Kk Screw pump
KR100923039B1 (en) 2006-08-10 2009-10-22 가부시키가이샤 도요다 지도숏키 Screw pump
JP2011106310A (en) * 2009-11-13 2011-06-02 Ueda Tekko Kk Gear pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414008A (en) * 1977-07-02 1979-02-01 Sanko Ponpu Kougiyou Kk Positive displacement axial flow rotary piston

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414008A (en) * 1977-07-02 1979-02-01 Sanko Ponpu Kougiyou Kk Positive displacement axial flow rotary piston

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216089A (en) * 1984-04-11 1985-10-29 Hitachi Ltd Screw vacuum pump
JPS61223295A (en) * 1985-03-27 1986-10-03 Hitachi Ltd Vacuum pump with oil-free screw
JPH0588392B2 (en) * 1985-03-27 1993-12-22 Hitachi Ltd
JPS63176684A (en) * 1987-01-16 1988-07-20 Hayashi Seiko Kk Screw pump
KR100923039B1 (en) 2006-08-10 2009-10-22 가부시키가이샤 도요다 지도숏키 Screw pump
JP2011106310A (en) * 2009-11-13 2011-06-02 Ueda Tekko Kk Gear pump

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