JPS5444208A - Fluid pump - Google Patents
Fluid pumpInfo
- Publication number
- JPS5444208A JPS5444208A JP11087277A JP11087277A JPS5444208A JP S5444208 A JPS5444208 A JP S5444208A JP 11087277 A JP11087277 A JP 11087277A JP 11087277 A JP11087277 A JP 11087277A JP S5444208 A JPS5444208 A JP S5444208A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- vomitting
- communicated
- curved line
- groove
- 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
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To improve the pumping efficiency and prevent the occurrence of noisy sound by suitably determining the sizes and arrangements of the opening of a piston chamber and a communication hole which is communicated with suction and vomitting grooves so that the rising and falling portions of a pressure curved line may become smooth.
CONSTITUTION: The sizes and arrangements of communication holes 10W14 are set in such a manner that the total amount of effective cross-sectional areas of the flow paths 10aW14a which are formed by the respective interference with a communication hole 10 by which an opening 4 is communicated with a vomitting groove 7 and a communication hole 10 by which the hole 4 is communicated with the vomitting groove 7 or suction groove 6 of the opening 4 and the notches 4-1, 4-2 which joins the opening 4 changes along a predetermined curved line as the opening 4 of the piston chamber moves. By so doing, both the rise portion (AB) and the fall portion (CD) of the pressure curved line becomes smooth. As a consequence, it becomes possible to minimize the decrease of the capacity efficiency and obtain a fluid pump of a high efficiency and low noise
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11087277A JPS5444208A (en) | 1977-09-13 | 1977-09-13 | Fluid pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11087277A JPS5444208A (en) | 1977-09-13 | 1977-09-13 | Fluid pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5444208A true JPS5444208A (en) | 1979-04-07 |
Family
ID=14546831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11087277A Pending JPS5444208A (en) | 1977-09-13 | 1977-09-13 | Fluid pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5444208A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0974753A3 (en) * | 1998-07-21 | 2000-10-04 | Kawasaki Jukogyo Kabushiki Kaisha | Axial piston pump |
WO2005100788A1 (en) * | 2004-04-07 | 2005-10-27 | Government Of The United States Of America, As Represented By The Administrator Of The Environmental Protection Agency | Hydraulic machine having pressure equalization |
WO2007068431A1 (en) * | 2005-12-13 | 2007-06-21 | Brueninghaus Hydromatik Gmbh | Hydrostatic piston machine comprising an initial starting flow in the direction of the periphery |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5180003A (en) * | 1974-12-27 | 1976-07-13 | Fujikoshi Kk |
-
1977
- 1977-09-13 JP JP11087277A patent/JPS5444208A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5180003A (en) * | 1974-12-27 | 1976-07-13 | Fujikoshi Kk |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0974753A3 (en) * | 1998-07-21 | 2000-10-04 | Kawasaki Jukogyo Kabushiki Kaisha | Axial piston pump |
US6186748B1 (en) | 1998-07-21 | 2001-02-13 | Kawasaki Jukogyo Kabushiki Kaisha | Axial piston pump |
WO2005100788A1 (en) * | 2004-04-07 | 2005-10-27 | Government Of The United States Of America, As Represented By The Administrator Of The Environmental Protection Agency | Hydraulic machine having pressure equalization |
US7500424B2 (en) | 2004-04-07 | 2009-03-10 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Hydraulic machine having pressure equalization |
WO2007068431A1 (en) * | 2005-12-13 | 2007-06-21 | Brueninghaus Hydromatik Gmbh | Hydrostatic piston machine comprising an initial starting flow in the direction of the periphery |
US8387514B2 (en) | 2005-12-13 | 2013-03-05 | Brueninghaus Hydromatik Gmbh | Hydrostatic piston machine with output volume flow in the circumferential direction |
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