JPS55153881A - Helical type double-axle rotary fluid pump - Google Patents
Helical type double-axle rotary fluid pumpInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-04-24 JP JP5100279A patent/JPS55153881A/en active Pending
Patent Citations (1)
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)
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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