WO2002042646A1 - Sleeve for the piston of a radial piston pump - Google Patents
Sleeve for the piston of a radial piston pump Download PDFInfo
- Publication number
- WO2002042646A1 WO2002042646A1 PCT/DE2001/004297 DE0104297W WO0242646A1 WO 2002042646 A1 WO2002042646 A1 WO 2002042646A1 DE 0104297 W DE0104297 W DE 0104297W WO 0242646 A1 WO0242646 A1 WO 0242646A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- sealing area
- face
- lubricant
- radial
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0421—Cylinders
Definitions
- the invention is therefore based on the state of the art the task of taking measures which, with comparatively little effort, impose a flawless and, with regard to their function, always verifiable separation of the outer, with clear water or an aqueous fluid with a small proportion of lubricant Ensure fluid space from the radially inner, lubricant-containing shaft space.
- the helical groove machined into the wall of the bore receiving the piston between the 2nd end face and the 3rd sealing area adjacent to it, which is connected at least indirectly via a 3rd radial channel to the wave space i ⁇ , which is under atmospheric pressure, serves to break down the after certain operating time
- the fixing of the liner in its associated bore of the pump housing may take place in that the liner pressed against a the 15 shaft space adjacent stop in the bore and is held in place by a pump valves receiving housing from the radially outer periphery thereof.
- Figure 1 in a schematic side view, partially in section, a
- FIG. 1 in FIG. 1 denotes a radial piston pump for clear water.
- the pump shaft 2 of the radial piston pump 1 is provided with an eccentric cylindrical shaft section 3, on which a support ring 4 is mounted in a relatively rotatable manner.
- the support ring 4 has two radially oriented edge webs 5 on the circumference, which in the exemplary embodiment delimit seven circumferential flat support surfaces L0 6, which extend tangentially to the axis of rotation 7 of the pump shaft 2.
- edge webs 5 On the inside of the edge webs 5 there are holding strips 8 which run parallel to the end faces 6 and which overlap radial flanges 10 which have been worked on piston shoes 9.
- the piston shoes 9 are fixed in position by pressure rings 11 on the support ring 4.
- the ball heads 12 are attached by radially extending pistons 13.
- the pistons 13 pass through bushings 14, which are fixed in position in bores 15 of the pump housing 16 with the incorporation of seals 17 (see also FIG. 2).
- the liners 14 have threaded portions 20 on the circumferential ends 19 adjacent to the radially outer fluid space 18 and at a distance from the ones 1. End faces 21 radial stop collars 22. These areas 20 and 22 are used for attaching assembly and disassembly tools.
- Helical compression springs 25 are incorporated between axial projections 23, which face the lubricant-containing radially inner shaft space 24 of the pump housing 16, and the pressure rings 11. This
- FIG. 1 shows that the bores 15 are provided with stops 26 on the inner ends adjacent to the shaft space 24 for the axial orientation of the liners 14.
- FIG. 2 shows in more detail, a total of four radially open circumferential grooves 27 are provided on the circumferential side of each bushing 14. Embedded in these circumferential grooves 27 are the sealing rings 17 which can be seen in FIG. 1 and which come to the sealing contact on the wall of the bore 15 in the pump housing 16 which receives the liner 14.
- annular groove 28 is machined into the first end face 21 of the liner 14 adjacent to the fluid space 18.
- a sealing ring is embedded, which comes to rest on a counter surface, not shown.
- the liner 14 has three inner sealing regions 30, 31, 32 which are spaced apart both from the end faces 21, 29 and from one another with seals 35 embedded in ring grooves 33, which come to a sealing contact on the surface 34 of the piston 13 and can be seen in FIG.
- a 1st circumferential groove 38 which can be acted upon by a lubricant via a 1st radial channel 39, is machined into the wall 36 of the bore 37 receiving the piston 13 between the 1st sealing area 30 adjacent to the 1st end face 21 and the middle 2nd sealing area 31 ,
- the first circumferential groove 38 can also be connected to a pressure transducer, not shown in the drawings, which measures the pressure in the section 40 facing away from the first end face 21 behind the first sealing area 30.
- This pressure sensor can be used with a electronic display, also not illustrated, can be coupled.
- a second circumferential groove 41 is located in the wall between the third sealing area 32 adjacent to the second end face 29 and the second sealing area 31
- Lubricant monitoring can be carried out via this second circumferential groove 41 and a second radial channel 42 connected to it.
- the second radial channel 42 is coupled to a lubricant indicator, not shown in detail.
- a helical groove 43 is worked in, which is at least indirectly connected to the shaft space 24, which is under atmospheric pressure, via a third radial channel 44.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10195092T DE10195092D2 (en) | 2000-11-23 | 2001-11-20 | Liner for a piston of a radial piston pump |
AU2002216918A AU2002216918A1 (en) | 2000-11-23 | 2001-11-20 | Sleeve for the piston of a radial piston pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10058049.1 | 2000-11-23 | ||
DE2000158049 DE10058049C1 (en) | 2000-11-23 | 2000-11-23 | Bushing for piston of radial piston pump has at least three sealing sections between end face on radially outer fluid chamber side and end face on side of radially inner shaft chamber containing lubricating means |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002042646A1 true WO2002042646A1 (en) | 2002-05-30 |
Family
ID=7664312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/004297 WO2002042646A1 (en) | 2000-11-23 | 2001-11-20 | Sleeve for the piston of a radial piston pump |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002216918A1 (en) |
DE (2) | DE10058049C1 (en) |
WO (1) | WO2002042646A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7278443B2 (en) | 2004-12-16 | 2007-10-09 | Diversified Dynamics Corporation | Pulsation causing valve for a plural piston pump |
US7290561B2 (en) | 2004-12-16 | 2007-11-06 | Diversified Dynamics Corporation | Pulsation causing valve for a plural piston pump |
US20060140778A1 (en) * | 2004-12-28 | 2006-06-29 | Warren Leslie J | Reciprocating positive displacement pump for deionized water and method of cooling and lubricating therefor |
CN105332875B (en) * | 2015-11-17 | 2017-12-19 | 四川嘉泉科技有限公司 | A kind of multifunctional water oil dual-purpose electric pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516760A (en) * | 1968-01-29 | 1970-06-23 | Pumpenfabrik Urach | Method of sealing piston pumps |
US4086029A (en) * | 1976-12-06 | 1978-04-25 | United States Steel Corporation | Method and apparatus for flushing the plunger of a positive displacement pump |
FR2499634A1 (en) * | 1981-02-06 | 1982-08-13 | Pompes Indles Haute Pression | Piston pump for fluid - has seals on piston periphery forming lubrication zone between piston and cylinder |
US4514148A (en) * | 1982-11-01 | 1985-04-30 | Carter Controls, Inc. | Hydraulically actuated pump |
DE3701168A1 (en) * | 1987-01-16 | 1988-07-28 | Hemscheidt Maschf Hermann | Piston machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3602613A (en) * | 1969-09-25 | 1971-08-31 | Duriron Co | High pressure pump |
DE3721698A1 (en) * | 1987-07-01 | 1989-01-19 | Hauhinco Maschf | RADIAL PISTON PUMP FOR CONVEYING WATER |
-
2000
- 2000-11-23 DE DE2000158049 patent/DE10058049C1/en not_active Expired - Fee Related
-
2001
- 2001-11-20 AU AU2002216918A patent/AU2002216918A1/en not_active Abandoned
- 2001-11-20 DE DE10195092T patent/DE10195092D2/en not_active Expired - Fee Related
- 2001-11-20 WO PCT/DE2001/004297 patent/WO2002042646A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516760A (en) * | 1968-01-29 | 1970-06-23 | Pumpenfabrik Urach | Method of sealing piston pumps |
US4086029A (en) * | 1976-12-06 | 1978-04-25 | United States Steel Corporation | Method and apparatus for flushing the plunger of a positive displacement pump |
FR2499634A1 (en) * | 1981-02-06 | 1982-08-13 | Pompes Indles Haute Pression | Piston pump for fluid - has seals on piston periphery forming lubrication zone between piston and cylinder |
US4514148A (en) * | 1982-11-01 | 1985-04-30 | Carter Controls, Inc. | Hydraulically actuated pump |
DE3701168A1 (en) * | 1987-01-16 | 1988-07-28 | Hemscheidt Maschf Hermann | Piston machine |
Also Published As
Publication number | Publication date |
---|---|
AU2002216918A1 (en) | 2002-06-03 |
DE10195092D2 (en) | 2003-09-04 |
DE10058049C1 (en) | 2002-04-18 |
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