EP1404432A1 - Integrated filter housing - Google Patents
Integrated filter housingInfo
- Publication number
- EP1404432A1 EP1404432A1 EP02748057A EP02748057A EP1404432A1 EP 1404432 A1 EP1404432 A1 EP 1404432A1 EP 02748057 A EP02748057 A EP 02748057A EP 02748057 A EP02748057 A EP 02748057A EP 1404432 A1 EP1404432 A1 EP 1404432A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- pump
- housing
- reciprocating piston
- filter element
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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
- F04B53/20—Filtering
-
- 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
Definitions
- Filters contained within a pump system such as the reciprocating piston pumps commonly sold by the assignee of the instant invention typically require several connection components, are difficult to clean or maintain, and present the danger of loosening and falling off.
- the invention integrates the filter system into the pump design.
- This design will eliminate the need for extra connection components, increase the maximum internal pressure allowed due to no danger of the filter loosening, ease maintenance and cleaning while also decreasing the overall size of the system. Because the overall size is smaller, less energy is required to change the pressure throughout the system and thus increase overall efficiency compared to previous designs.
- the invention is a filter that inserts and becomes integrated with the housing of the pump system.
- the filter is inserted into its own cavity and held in place by upper and lower connectors that threadedly engage with the pump housing.
- the filter has a filter cover placed on its top, which prevents the filter from jostling around and damaging itself during liquid flow. Removal of the filter for cleaning or maintenance can be accomplished by removing the connector components and sliding the filter out of its housing.
- the filter cover is smaller than previous designs, which eases the cleaning of the filter cover and removal of the filter itself.
- the width of pump pipes can be increased and maximum internal pressure increased without risking the filter becoming loose, disconnecting or otherwise malfunctioning. Because such pipes are wider and the volume capacity is increased, the pump system as a whole is smaller than previous designs. Because the pump system is smaller as a whole and maximum internal pressure is higher, flushing the system during maintenance is accomplished more easily.
- FIG. 1 is a partially exploded front view of the pump system with the filter component extended out of its housing.
- FIG. 2 is a side elevation view of the pump of FIG. 1.
- FIG. 3 is a perspective view of the pump system.
- FIG. 4 is a cross-section of the pump that exposes the internal workings and showing the flow of liquid through the system.
- FIG. 5 is a top view of the pump system.
- Fluid travels through the pump (generally designated 10) by first entering the inlet housing 1, passing through the inlet check valve 11, and entering cylinder 31 of the pump lower 37. The fluid then travels via transfer passage 33a in upper housing 33 to the volume around the exterior of filter 29 and then passes through the filter itself 29. Cylindrical filter element 29 is held in place between a filter top cap 23, seal 25 and a filter bottom cap 27. A solid filter support 40 is located within filter 29 and helps prevent the collapse thereof. Fluid flows from the interior of filter 29 through passage 27a to outlet port 27b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention integrates a filter system into a reciprocating piston pump (10) . This design will eliminate the need for extra connection components, increase the maximum internal pressure allowed due to no danger of the filter loosening, ease maintenance and cleaning while also decreasing the overall size of the system. Because the overall size is smaller, less energy is required to change the pressure throughout the system and thus increase overall efficiency compared to previous designs. The invention is a filter element (29) that inserts and becomes integrated with the upper housing (33) of the pump (10). The filter element (29) is inserted into its own cavity and held in place by upper and lower connectors (23, 27) that threadedly engage with the pump housing (33).
Description
INTEGRATED FILTER HOUSING
TECHNICAL FIELD
This application is a of US Application serial number , filed ,
BACKGROUND ART
Filters contained within a pump system such as the reciprocating piston pumps commonly sold by the assignee of the instant invention typically require several connection components, are difficult to clean or maintain, and present the danger of loosening and falling off.
DISCLOSURE OF THE INVENTION
To overcome the deficiencies of the prior art, this invention integrates the filter system into the pump design. This design will eliminate the need for extra connection components, increase the maximum internal pressure allowed due to no danger of the filter loosening, ease maintenance and cleaning while also decreasing the overall size of the system. Because the overall size is smaller, less energy is required to change the pressure throughout the system and thus increase overall efficiency compared to previous designs.
The invention is a filter that inserts and becomes integrated with the housing of the pump system. The filter is inserted into its own cavity and held in place by upper and lower connectors that threadedly engage with the pump housing. The filter has a filter cover placed on its top, which prevents the filter from jostling around and damaging itself during liquid flow. Removal of the filter for cleaning or maintenance can be accomplished by removing the connector components and sliding the filter out of its housing. Also, the filter cover is smaller than previous designs, which eases the cleaning of the filter cover and removal of the filter itself.
Because the filter is integral to the pump system, the width of pump pipes can be increased and maximum internal pressure increased without risking the filter becoming loose, disconnecting or otherwise malfunctioning. Because such pipes are wider and the volume capacity is increased, the pump system as a whole is smaller than previous designs. Because the pump system is smaller as a whole and maximum internal pressure is higher, flushing the system during maintenance is accomplished more easily.
These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a partially exploded front view of the pump system with the filter component extended out of its housing.
FIG. 2 is a side elevation view of the pump of FIG. 1.
FIG. 3 is a perspective view of the pump system.
FIG. 4 is a cross-section of the pump that exposes the internal workings and showing the flow of liquid through the system.
FIG. 5 is a top view of the pump system.
BEST MODE FOR CARRYING OUT THE INVENTION
Fluid travels through the pump (generally designated 10) by first entering the inlet housing 1, passing through the inlet check valve 11, and entering cylinder 31 of the pump lower 37. The fluid then travels via transfer passage 33a in upper housing 33 to the volume around the exterior of filter 29 and then passes through the filter itself 29. Cylindrical filter element 29 is held in place between a filter top cap 23, seal 25 and a filter bottom cap 27. A solid filter support 40 is located within filter 29 and helps prevent the collapse thereof. Fluid flows from the interior of filter 29 through passage 27a to outlet port 27b.
It is contemplated that various changes and modifications may be made to the integrated filter housing without departing from the spirit and scope of the invention as defined by the following claims.
Claims
1. In a reciprocating piston pump having a cylinder, inlet and outlet checks and first and second end housings, the improvement comprising: a filter cavity integral with one of said housings, said filter cavity comprising first and second open ends and fluidly connecting with said outlet check;
a filter element in said filter cavity;
first and filter caps removably attached to said filter cavity ends; and
one of said filter caps comprising an outlet port.
2. The reciprocating piston pump of claim 1 further comprising a filter support within said filter element.
3. The reciprocating piston pump of claim 1 further comprising a pressure relief valve in one of said filter caps.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29599201P | 2001-06-05 | 2001-06-05 | |
US295992P | 2001-06-05 | ||
PCT/US2002/021070 WO2002098535A1 (en) | 2001-06-05 | 2002-05-31 | Integrated filter housing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1404432A1 true EP1404432A1 (en) | 2004-04-07 |
EP1404432A4 EP1404432A4 (en) | 2006-03-29 |
Family
ID=23140116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02748057A Withdrawn EP1404432A4 (en) | 2001-06-05 | 2002-05-31 | Integrated filter housing |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040170515A1 (en) |
EP (1) | EP1404432A4 (en) |
JP (1) | JP2004530074A (en) |
CN (1) | CN1232332C (en) |
TW (1) | TW550342B (en) |
WO (1) | WO2002098535A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2501934A1 (en) * | 2009-11-19 | 2012-09-26 | Graco Minnesota Inc. | Telescopic enclosure for rod coupler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0315564A1 (en) * | 1987-11-02 | 1989-05-10 | Stanadyne Automotive Corp. | Electronic unit injector |
WO2001016462A1 (en) * | 1999-08-31 | 2001-03-08 | Graco Minnesota Inc. | Airless spray pump |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2436077A (en) * | 1944-05-13 | 1948-02-17 | Titeflex Inc | Portable liquid filtering apparatus |
DE2657030C3 (en) * | 1976-12-16 | 1981-02-19 | Carl Schleicher & Schuell Gmbh & Co Kg, 3352 Einbeck | Pressure filtration cell |
US4288326A (en) * | 1978-03-14 | 1981-09-08 | Keefer Bowie | Rotary shaft driven reverse osmosis method and apparatus |
JPS5951176A (en) * | 1982-09-20 | 1984-03-24 | Nippon Denso Co Ltd | Reciprocating gas pump |
US4955953A (en) * | 1988-11-15 | 1990-09-11 | Kls International Corporation | Lubricating device |
DE4237469B4 (en) * | 1992-11-06 | 2004-05-13 | Robert Bosch Gmbh | Fuel injection device, in particular pump nozzle for internal combustion engines |
CA2118979C (en) * | 1993-03-18 | 2003-02-25 | Spencer M. Nimberger | Sampling pump |
CN1134285C (en) * | 1996-11-21 | 2004-01-14 | 科林·皮尔逊 | Fluid driven pumps and apparatus employing such pumps |
US6325932B1 (en) * | 1999-11-30 | 2001-12-04 | Mykrolis Corporation | Apparatus and method for pumping high viscosity fluid |
CA2342489C (en) * | 2000-04-07 | 2004-03-23 | Marc Riverin | Device for sea urchins picking |
-
2002
- 2002-05-31 EP EP02748057A patent/EP1404432A4/en not_active Withdrawn
- 2002-05-31 WO PCT/US2002/021070 patent/WO2002098535A1/en not_active Application Discontinuation
- 2002-05-31 US US10/479,667 patent/US20040170515A1/en not_active Abandoned
- 2002-05-31 JP JP2003501571A patent/JP2004530074A/en active Pending
- 2002-05-31 CN CN02811327.6A patent/CN1232332C/en not_active Expired - Fee Related
- 2002-10-02 TW TW091122764A patent/TW550342B/en active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0315564A1 (en) * | 1987-11-02 | 1989-05-10 | Stanadyne Automotive Corp. | Electronic unit injector |
WO2001016462A1 (en) * | 1999-08-31 | 2001-03-08 | Graco Minnesota Inc. | Airless spray pump |
Non-Patent Citations (1)
Title |
---|
See also references of WO02098535A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002098535A1 (en) | 2002-12-12 |
US20040170515A1 (en) | 2004-09-02 |
CN1512907A (en) | 2004-07-14 |
JP2004530074A (en) | 2004-09-30 |
TW550342B (en) | 2003-09-01 |
CN1232332C (en) | 2005-12-21 |
EP1404432A4 (en) | 2006-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20031222 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20060213 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20061201 |