US20090257897A1 - Reciprocating pump - Google Patents
Reciprocating pump Download PDFInfo
- Publication number
- US20090257897A1 US20090257897A1 US12/418,985 US41898509A US2009257897A1 US 20090257897 A1 US20090257897 A1 US 20090257897A1 US 41898509 A US41898509 A US 41898509A US 2009257897 A1 US2009257897 A1 US 2009257897A1
- Authority
- US
- United States
- Prior art keywords
- manifold
- pump
- fluid
- pump chamber
- valve
- 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.)
- Abandoned
Links
Images
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
-
- 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
- F04B53/007—Cylinder heads
-
- 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
Definitions
- the present invention relates to a reciprocating pump.
- a flow path inside a manifold curves in an approximately perpendicular direction between a suction port and a suction valve, and then curves in an approximately perpendicular direction between a discharge valve and a discharge port as described, for example, in Japanese patent No. 3983185.
- the shape of the manifold is complicated due to the complicated arrangement of the suction port, the suction valve, the discharge valve and the discharge port, and compact and lightweight design of the pump is therefore difficult.
- the present invention was made to solve such problems and its object is to provide a reciprocating pump that has a compact and lightweight design and enables an improvement in pump efficiency and a reduction in noise.
- the reciprocating pump of the present invention is a reciprocating pump for performing pumping in a pump chamber constituting an end of a cylinder by a reciprocating member reciprocating inside of the cylinder, and comprises: a manifold having the pump chamber; a suction port for sucking fluid from an outside to an inside of the manifold; a discharge port for discharging fluid from the inside to the outside of the manifold; a suction valve for opening and closing a flow path of the fluid to the pump chamber, the suction valve being provided between the suction port and the pump chamber; and a discharge valve for opening and closing a flow path of the fluid from the pump chamber, the discharge valve being provided between the pump chamber and the discharge port, the suction port, the suction valve, the discharge valve and the discharge port being arranged coaxially.
- the manifold is fixed by a plurality of bolts to a casing accommodating a drive source side of the reciprocating member, and the bolts are mounted in equidistant positions on the same circumference viewed in a axial direction of the cylinder.
- the configuration of the manifold is simplified by arranging the suction port, the suction valve, the discharge valve and the discharge port coaxially as described above, the degree of freedom of the arrangement of the plurality of bolts for fixing the manifold to the casing is increased, and the bolts can be mounted in equidistant positions on the same circumference viewed in the axial direction of the cylinder.
- the manifold can thereby be mounted to the casing in various rotational positions with a cylinder axis as a central axis, making installation of the reciprocating pump more convenient.
- the reciprocating pump of the present invention enables an improvement in pump efficiency and a reduction in noise, with a compact and lightweight design.
- FIG. 1 is a longitudinal sectional view of a reciprocating pump of an embodiment of the present invention
- FIG. 2 is an elevational view of the reciprocating pump shown in FIG. 1 ;
- FIG. 3 is an elevational view of a casing in FIG. 1 .
- FIGS. 1 to 3 A preferred embodiment of the reciprocating pump of the present invention will be described below with reference to FIGS. 1 to 3 .
- up, down, left and right directions indicate the directions in the descriptive figures unless specified otherwise.
- FIG. 1 is a longitudinal sectional view of a reciprocating pump of an embodiment of the present invention
- FIG. 2 is an elevational view of the reciprocating pump
- FIG. 3 is an elevational view of a casing.
- a section above the axis A of a plunger (reciprocating member) 5 shown in FIG. 1 shows a case where the plunger 5 is at the top dead center
- a section below the axis A shows a case where the plunger 5 is at the bottom dead center.
- the external form of a reciprocal pump 100 is configured with a casing 1 coupled to a manifold 6 , and a tubular cylinder 18 is provided therein so as to extend in left and right directions of FIG. 1 . Furthermore, a plunger 5 is provided inside the cylinder 18 .
- a con rod 2 , a piston pin 4 and a cam shaft 3 serving as the drive source of the plunger 5 are arranged inside the casing 1 .
- bolt holes 19 are provided in equidistant positions on the same circumference viewed in the axial direction of the cylinder 18 as shown in FIG. 3 , and particularly in the present embodiment, are provided in four equidistant positions (positions each separated by 90° in a circumferential direction).
- the manifold 6 is coupled to the casing 1 by screwing four bolts 14 into the bolt holes 19 as shown in FIG. 2 .
- a high-pressure seal 20 and a low-pressure seal 21 for preventing leakage of fluid between the cylinder 18 and the plunger 5 are arranged in the cylinder 18 in liquid-tight slidable contact with the outer circumferential surface of the plunger 5 as shown in FIG. 1 .
- pumping is performed wherein the plunger 5 reciprocates inside the cylinder 18 in the left and right directions of FIG. 1 via the con rod 2 and the piston pin 4 by rotation of the cam shaft 3 , a pump chamber 17 comprising an end of the cylinder 18 (the left end of FIG. 1 ) is pressurized/depressurized, and fluid is sucked in and discharged.
- the suction port 12 for sucking fluid from the outside to the inside of the manifold 6 is provided below the pump chamber 17 of the manifold 6 , a flow path 22 communicating the suction port 12 and the pump chamber 17 is provided between this suction port 12 and this pump chamber 17 , and a suction valve 11 opening and closing this flow path 22 is provided in this flow path 22 .
- an adapter 9 provided with a discharge port 13 for discharging fluid from the inside to the outside of the manifold 6 is mounted on the manifold 6 , a flow path 23 communicating the discharge port 13 and the pump chamber 17 is provided between the discharge port 13 of the adapter 9 and the pump chamber 17 , and a discharge valve 7 opening and closing this flow path 23 is provided in this flow path 23 .
- This suction valve 11 and this discharge valve 7 have approximately round dish-shaped valve discs 11 a and 7 a opening and closing flow paths 22 and 23 , approximately cylindrical valve seats 11 b and 7 b where the valve discs 11 a and 7 a unseat/seat, compression springs 11 c and 7 c biasing the valve discs 11 a and 7 a in the seating direction, and approximately cylindrical holding members 11 d and 7 d accommodating the valve discs 11 a and 7 a and the compression springs 11 c and 7 c.
- the suction valve 11 is configured such that when the plunger 5 moves to the bottom dead center and depressurizes the inside of pump chamber 17 , the valve disc 11 a resists the biasing force of the compression spring 11 c and unseats upward from the valve seat 11 b, opening the flow path 22 and sucking fluid from the outside through the suction port 12 .
- the discharge valve 7 is configured such that when the plunger 5 moves to the top dead center and pressurizes the inside of the pump chamber 17 , the valve disc 7 a resists the biasing force of the compression spring 7 c and unseats upward from the valve 7 b, opening the flow path 23 and discharging fluid to the outside through the discharge port 13 .
- the suction port 12 , the flow path 22 , the suction valve 11 , the pump chamber 17 , the discharge valve 7 , the flow path 23 and the discharge port 13 are arranged coaxially to form a straight line. Furthermore, these members are arranged in a line on an axis B orthogonal to the axis A of the plunger 5 .
- a cooling line 24 connected between a high-pressure seal 20 and a low-pressure seal 21 is connected to the flow path 22 , some of the fluid sucked through the suction port 12 is supplied to the plunger 5 through the cooling line 24 , and the plunger 5 is thereby cooled by the fluid.
- the reciprocating pump 100 is actuated, the plunger 5 reciprocates, the fluid is sucked from the suction port 12 , through the flow path 22 and the suction valve 11 , and to the pump chamber 17 , and then flows from the pump chamber 17 , through the discharge valve 7 and the flow path 23 , and is discharged from the discharge port 13 .
- the suction port 12 , the suction valve 11 , the discharge valve 7 and the discharge port 13 are arranged on the same axis B, the fluid flows without meeting unnecessary resistance, and therefore the fluid can be made to flow smoothly, pump efficiency can be improved, and noise can be reduced. Furthermore, since the suction port 12 , the suction valve 11 , the discharge valve 7 and the discharge port 13 are arranged on the same axis B as described above, the structure of the manifold 6 can be simplified and made compact and lightweight.
- the reciprocating pump 100 since the structure of the manifold 6 is simplified by arranging the suction port 12 , the suction valve 11 , the discharge valve 7 and the discharge port 13 on the same axis B as described above, the degree of freedom of the arrangement of the plurality of bolts 14 for fixing the manifold 6 to the casing 1 is increased, and the bolts 14 can be mounted in four equidistant positions each separated by 90° in a circumferential direction on the same circumference viewed in the axial direction of the cylinder 18 .
- the manifold 6 can thereby be mounted on the casing 1 in four positions conforming with the top, bottom, left and right directions of FIG.
- the present invention is described specifically above based on this embodiment, the present invention is not limited to the above embodiment.
- the number of bolts 14 for fixing the manifold 6 to the casing 1 is particularly preferably four in the above embodiment, this number is not limited and can be, for example, six or eight, as long as the bolts are arranged in equidistant positions on the same circumference viewed in the axial direction of the cylinder 18 , and the manifold 6 can be mounted on the casing 1 in various rotational positions depending on this number.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides a pump having a compact and lightweight design, which enables an improvement in pump efficiency and a reduction in noise. The pump comprises a manifold having a pump chamber, a suction port for sucking fluid from the outside to the inside of the manifold, a discharge port for discharging fluid from the inside to the outside of the manifold, a suction valve which is provided between a suction port and a pump chamber, and opens and closes a flow path of fluid to the pump chamber, and a discharge valve which is provided between the pump chamber and the discharge port, and opens and closes a flow path of fluid from the pump chamber. Furthermore, the suction port, the suction valve, the discharge valve and the discharge port are arranged coaxially, thereby the fluid does not meet unnecessary resistance, the fluid is made to flow smoothly, pump efficiency can be improved, noise can be reduced, and the structure of the manifold can be simplified and made compact and lightweight.
Description
- 1. Field of the Invention
- The present invention relates to a reciprocating pump.
- 2. Related Background Art
- In a conventional reciprocating pump such as a plunger pump or a piston pump, a flow path inside a manifold curves in an approximately perpendicular direction between a suction port and a suction valve, and then curves in an approximately perpendicular direction between a discharge valve and a discharge port as described, for example, in Japanese patent No. 3983185.
- Here, when the aforementioned reciprocating pump is operated, fluid sucked from the suction port flows along the flow path to a pump chamber and then is discharged from the pump chamber to the outside through the discharge port. However, at this time, the fluid passing through the inside of the manifold meets great resistance, which may result in problems such as noise or degradation of pump efficiency.
- Furthermore, the shape of the manifold is complicated due to the complicated arrangement of the suction port, the suction valve, the discharge valve and the discharge port, and compact and lightweight design of the pump is therefore difficult.
- The present invention was made to solve such problems and its object is to provide a reciprocating pump that has a compact and lightweight design and enables an improvement in pump efficiency and a reduction in noise.
- The reciprocating pump of the present invention is a reciprocating pump for performing pumping in a pump chamber constituting an end of a cylinder by a reciprocating member reciprocating inside of the cylinder, and comprises: a manifold having the pump chamber; a suction port for sucking fluid from an outside to an inside of the manifold; a discharge port for discharging fluid from the inside to the outside of the manifold; a suction valve for opening and closing a flow path of the fluid to the pump chamber, the suction valve being provided between the suction port and the pump chamber; and a discharge valve for opening and closing a flow path of the fluid from the pump chamber, the discharge valve being provided between the pump chamber and the discharge port, the suction port, the suction valve, the discharge valve and the discharge port being arranged coaxially.
- According to this reciprocating pump, since the suction port, the suction valve, the discharge valve and the discharge port are arranged coaxially, fluid flows without meeting unnecessary resistance, and therefore the fluid can be made to flow smoothly, pump efficiency can be improved, and noise can be reduced. Furthermore, as described above, since the suction port, the suction valve, the discharge valve and the discharge port are arranged coaxially, the structure of the manifold can be simplified and made compact and lightweight.
- It is preferable that the manifold is fixed by a plurality of bolts to a casing accommodating a drive source side of the reciprocating member, and the bolts are mounted in equidistant positions on the same circumference viewed in a axial direction of the cylinder.
- According to this reciprocating pump, since the configuration of the manifold is simplified by arranging the suction port, the suction valve, the discharge valve and the discharge port coaxially as described above, the degree of freedom of the arrangement of the plurality of bolts for fixing the manifold to the casing is increased, and the bolts can be mounted in equidistant positions on the same circumference viewed in the axial direction of the cylinder. The manifold can thereby be mounted to the casing in various rotational positions with a cylinder axis as a central axis, making installation of the reciprocating pump more convenient.
- The reciprocating pump of the present invention enables an improvement in pump efficiency and a reduction in noise, with a compact and lightweight design.
-
FIG. 1 is a longitudinal sectional view of a reciprocating pump of an embodiment of the present invention; -
FIG. 2 is an elevational view of the reciprocating pump shown inFIG. 1 ; and -
FIG. 3 is an elevational view of a casing inFIG. 1 . - A preferred embodiment of the reciprocating pump of the present invention will be described below with reference to
FIGS. 1 to 3 . In addition, up, down, left and right directions indicate the directions in the descriptive figures unless specified otherwise. -
FIG. 1 is a longitudinal sectional view of a reciprocating pump of an embodiment of the present invention,FIG. 2 is an elevational view of the reciprocating pump, andFIG. 3 is an elevational view of a casing. In addition, a section above the axis A of a plunger (reciprocating member) 5 shown inFIG. 1 shows a case where theplunger 5 is at the top dead center, and a section below the axis A shows a case where theplunger 5 is at the bottom dead center. - As shown in
FIG. 1 , the external form of areciprocal pump 100 is configured with acasing 1 coupled to amanifold 6, and atubular cylinder 18 is provided therein so as to extend in left and right directions ofFIG. 1 . Furthermore, aplunger 5 is provided inside thecylinder 18. - A
con rod 2, apiston pin 4 and acam shaft 3 serving as the drive source of theplunger 5 are arranged inside thecasing 1. On the side close to themanifold 6 of thiscasing 1,bolt holes 19 are provided in equidistant positions on the same circumference viewed in the axial direction of thecylinder 18 as shown inFIG. 3 , and particularly in the present embodiment, are provided in four equidistant positions (positions each separated by 90° in a circumferential direction). Themanifold 6 is coupled to thecasing 1 by screwing fourbolts 14 into thebolt holes 19 as shown inFIG. 2 . - In addition, a high-
pressure seal 20 and a low-pressure seal 21 for preventing leakage of fluid between thecylinder 18 and theplunger 5 are arranged in thecylinder 18 in liquid-tight slidable contact with the outer circumferential surface of theplunger 5 as shown inFIG. 1 . - Furthermore, pumping is performed wherein the
plunger 5 reciprocates inside thecylinder 18 in the left and right directions ofFIG. 1 via thecon rod 2 and thepiston pin 4 by rotation of thecam shaft 3, apump chamber 17 comprising an end of the cylinder 18 (the left end ofFIG. 1 ) is pressurized/depressurized, and fluid is sucked in and discharged. - The
suction port 12 for sucking fluid from the outside to the inside of themanifold 6 is provided below thepump chamber 17 of themanifold 6, aflow path 22 communicating thesuction port 12 and thepump chamber 17 is provided between thissuction port 12 and thispump chamber 17, and asuction valve 11 opening and closing thisflow path 22 is provided in thisflow path 22. In addition, above thepump chamber 17, anadapter 9 provided with adischarge port 13 for discharging fluid from the inside to the outside of themanifold 6 is mounted on themanifold 6, aflow path 23 communicating thedischarge port 13 and thepump chamber 17 is provided between thedischarge port 13 of theadapter 9 and thepump chamber 17, and adischarge valve 7 opening and closing thisflow path 23 is provided in thisflow path 23. - This
suction valve 11 and thisdischarge valve 7 have approximately round dish-shaped valve discs closing flow paths cylindrical valve seats valve discs compression springs 11 c and 7 c biasing thevalve discs cylindrical holding members valve discs compression springs 11 c and 7 c. - Furthermore, the
suction valve 11 is configured such that when theplunger 5 moves to the bottom dead center and depressurizes the inside ofpump chamber 17, thevalve disc 11 a resists the biasing force of thecompression spring 11 c and unseats upward from thevalve seat 11 b, opening theflow path 22 and sucking fluid from the outside through thesuction port 12. Meanwhile, thedischarge valve 7 is configured such that when theplunger 5 moves to the top dead center and pressurizes the inside of thepump chamber 17, thevalve disc 7 a resists the biasing force of the compression spring 7 c and unseats upward from thevalve 7 b, opening theflow path 23 and discharging fluid to the outside through thedischarge port 13. - Here, particularly in the present embodiment, the
suction port 12, theflow path 22, thesuction valve 11, thepump chamber 17, thedischarge valve 7, theflow path 23 and thedischarge port 13 are arranged coaxially to form a straight line. Furthermore, these members are arranged in a line on an axis B orthogonal to the axis A of theplunger 5. - Furthermore, a
cooling line 24 connected between a high-pressure seal 20 and a low-pressure seal 21 is connected to theflow path 22, some of the fluid sucked through thesuction port 12 is supplied to theplunger 5 through thecooling line 24, and theplunger 5 is thereby cooled by the fluid. - According to this
reciprocating pump 100, the reciprocatingpump 100 is actuated, theplunger 5 reciprocates, the fluid is sucked from thesuction port 12, through theflow path 22 and thesuction valve 11, and to thepump chamber 17, and then flows from thepump chamber 17, through thedischarge valve 7 and theflow path 23, and is discharged from thedischarge port 13. - At this time, since the
suction port 12, thesuction valve 11, thedischarge valve 7 and thedischarge port 13 are arranged on the same axis B, the fluid flows without meeting unnecessary resistance, and therefore the fluid can be made to flow smoothly, pump efficiency can be improved, and noise can be reduced. Furthermore, since thesuction port 12, thesuction valve 11, thedischarge valve 7 and thedischarge port 13 are arranged on the same axis B as described above, the structure of themanifold 6 can be simplified and made compact and lightweight. - Furthermore, according to the
reciprocating pump 100, since the structure of themanifold 6 is simplified by arranging thesuction port 12, thesuction valve 11, thedischarge valve 7 and thedischarge port 13 on the same axis B as described above, the degree of freedom of the arrangement of the plurality ofbolts 14 for fixing themanifold 6 to thecasing 1 is increased, and thebolts 14 can be mounted in four equidistant positions each separated by 90° in a circumferential direction on the same circumference viewed in the axial direction of thecylinder 18. Themanifold 6 can thereby be mounted on thecasing 1 in four positions conforming with the top, bottom, left and right directions ofFIG. 2 , with (1) thesuction port 12 on the bottom and thedischarge port 13 on the top, (2) thesuction port 12 on the left and thedischarge port 13 on the right, (3) thesuction port 12 on the top and thedischarge port 13 on the bottom, and (4) thesuction port 12 on the right and thedischarge port 13 on the left. The installation of the reciprocatingpump 100 can thus be made more convenient. - Although the present invention is described specifically above based on this embodiment, the present invention is not limited to the above embodiment. For example, although the number of
bolts 14 for fixing themanifold 6 to thecasing 1 is particularly preferably four in the above embodiment, this number is not limited and can be, for example, six or eight, as long as the bolts are arranged in equidistant positions on the same circumference viewed in the axial direction of thecylinder 18, and themanifold 6 can be mounted on thecasing 1 in various rotational positions depending on this number.
Claims (2)
1. A reciprocating pump for performing pumping in a pump chamber constituting an end of a cylinder, by a reciprocating member reciprocating inside of the cylinder, the reciprocating pump comprising:
a manifold having the pump chamber;
a suction port for sucking fluid from an outside to an inside of the manifold;
a discharge port for discharging fluid from the inside to the outside of the manifold;
a suction valve for opening and closing a flow path of the fluid to the pump chamber, the suction valve being provided between the suction port and the pump chamber; and
a discharge valve for opening and closing a flow path of the fluid from the pump chamber, the discharge valve being provided between the pump chamber and the discharge port,
the suction port, the suction valve, the discharge valve and the discharge port being arranged coaxially.
2. The reciprocating pump according to claim 1 , wherein the manifold is fixed by a plurality of bolts to a casing accommodating a drive source side of the reciprocating member, and the bolts are mounted in equidistant positions on a same circumference viewed in an axial direction of the cylinder.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008106086A JP2009257166A (en) | 2008-04-15 | 2008-04-15 | Reciprocating pump |
JP2008-106086 | 2008-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090257897A1 true US20090257897A1 (en) | 2009-10-15 |
Family
ID=41164153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/418,985 Abandoned US20090257897A1 (en) | 2008-04-15 | 2009-04-06 | Reciprocating pump |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090257897A1 (en) |
JP (1) | JP2009257166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150137516A1 (en) * | 2013-11-20 | 2015-05-21 | Delavan Ag Pumps, Inc | Pump port adapter |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181473A (en) * | 1961-06-19 | 1965-05-04 | Air Reduction | High-pressure, cavitation free piston pumps |
US3942916A (en) * | 1974-02-05 | 1976-03-09 | Autochem Instrument Ab | Dosing device particularly for small quantities of liquid |
US4778347A (en) * | 1986-09-15 | 1988-10-18 | Mize Robert L | High production pump for viscous materials and method |
US5094596A (en) * | 1990-06-01 | 1992-03-10 | Binks Manufacturing Company | High pressure piston pump for fluent materials |
US5302011A (en) * | 1990-09-16 | 1994-04-12 | Alfred Teves Gmbh | Braking pressure control device for a hydraulic automotive vehicle brake system |
US5403169A (en) * | 1992-03-31 | 1995-04-04 | Ebara Corporation | Plunger pump |
US6382940B1 (en) * | 2000-07-18 | 2002-05-07 | George H. Blume | High pressure plunger pump housing and packing |
US6544012B1 (en) * | 2000-07-18 | 2003-04-08 | George H. Blume | High pressure plunger pump housing and packing |
US6910871B1 (en) * | 2002-11-06 | 2005-06-28 | George H. Blume | Valve guide and spring retainer assemblies |
US20070071624A1 (en) * | 2005-08-08 | 2007-03-29 | Brewer Willard Jr | Hurricane emergency pump |
US20070292290A1 (en) * | 2006-06-16 | 2007-12-20 | Maguire Stephen B | Liquid color injection pressure booster pump and pumping methods |
US7513759B1 (en) * | 2003-07-03 | 2009-04-07 | Blume George H | Valve guide and spring retainer assemblies |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6149177A (en) * | 1984-08-13 | 1986-03-11 | Fuji Techno Kogyo Kk | Plunger returning device in reciprocating pump |
JPH04179872A (en) * | 1990-11-09 | 1992-06-26 | Tone Corp | Reciprocating pump device |
JP2538490B2 (en) * | 1992-11-27 | 1996-09-25 | 祐昭 金子 | Plunger pump |
JP3705373B2 (en) * | 1995-01-31 | 2005-10-12 | ヤマハ発動機株式会社 | Electromagnetic pump |
JP3326386B2 (en) * | 1998-04-23 | 2002-09-24 | 小島プレス工業株式会社 | Reservoir tank fixing structure |
JP3951796B2 (en) * | 2002-05-13 | 2007-08-01 | 株式会社デンソー | Fuel injection pump |
-
2008
- 2008-04-15 JP JP2008106086A patent/JP2009257166A/en active Pending
-
2009
- 2009-04-06 US US12/418,985 patent/US20090257897A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181473A (en) * | 1961-06-19 | 1965-05-04 | Air Reduction | High-pressure, cavitation free piston pumps |
US3942916A (en) * | 1974-02-05 | 1976-03-09 | Autochem Instrument Ab | Dosing device particularly for small quantities of liquid |
US4778347A (en) * | 1986-09-15 | 1988-10-18 | Mize Robert L | High production pump for viscous materials and method |
US5094596A (en) * | 1990-06-01 | 1992-03-10 | Binks Manufacturing Company | High pressure piston pump for fluent materials |
US5302011A (en) * | 1990-09-16 | 1994-04-12 | Alfred Teves Gmbh | Braking pressure control device for a hydraulic automotive vehicle brake system |
US5403169A (en) * | 1992-03-31 | 1995-04-04 | Ebara Corporation | Plunger pump |
US6382940B1 (en) * | 2000-07-18 | 2002-05-07 | George H. Blume | High pressure plunger pump housing and packing |
US6544012B1 (en) * | 2000-07-18 | 2003-04-08 | George H. Blume | High pressure plunger pump housing and packing |
US6910871B1 (en) * | 2002-11-06 | 2005-06-28 | George H. Blume | Valve guide and spring retainer assemblies |
US7513759B1 (en) * | 2003-07-03 | 2009-04-07 | Blume George H | Valve guide and spring retainer assemblies |
US20070071624A1 (en) * | 2005-08-08 | 2007-03-29 | Brewer Willard Jr | Hurricane emergency pump |
US20070292290A1 (en) * | 2006-06-16 | 2007-12-20 | Maguire Stephen B | Liquid color injection pressure booster pump and pumping methods |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150137516A1 (en) * | 2013-11-20 | 2015-05-21 | Delavan Ag Pumps, Inc | Pump port adapter |
US10125762B2 (en) * | 2013-11-20 | 2018-11-13 | Delavan Ag Pumps, Inc. | Pump port adapter |
Also Published As
Publication number | Publication date |
---|---|
JP2009257166A (en) | 2009-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI502132B (en) | Air compressor | |
CN102216615B (en) | Multi-stage reciprocating compressor | |
JP5477614B2 (en) | Valve structure | |
CN102374148A (en) | Double acting fluid pump | |
US10087918B2 (en) | Compressor | |
JP2009121294A (en) | Reciprocating pump | |
US20110020159A1 (en) | Fluid working machine | |
US11015588B2 (en) | Compact air compressor | |
JP2007032463A (en) | Multistage reciprocating compressor | |
US20090257897A1 (en) | Reciprocating pump | |
US5897305A (en) | Valve assembly for compressors | |
US20180238312A1 (en) | Reciprocating Compressor Vented Piston | |
US8904918B2 (en) | Hybrid type air-compressor including combination of eccentric shaft and cross-slider mechanism | |
US9932971B2 (en) | Swash plate compressor having a curved piston guide wall | |
US20220154707A1 (en) | Electric vacuum pump for braking system on passenger cars with v-twin piston arrangement | |
CN107850065B (en) | Ventilating type discharge valve of reciprocating compressor | |
JP2010275874A (en) | Fuel injection pump | |
JP7495374B2 (en) | Reciprocating Pump | |
US9435322B2 (en) | Valveless reciprocating compressor | |
KR101559807B1 (en) | Concentric valve assembly for air compressor | |
JP3554504B2 (en) | Reciprocating pump | |
JP5293351B2 (en) | Pump device | |
US20180355857A1 (en) | Method and system for enhancing performance in a reciprocating compressor | |
KR101741840B1 (en) | Compressor | |
KR100891040B1 (en) | Pneumatic pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MARUYAMA MFG. CO., INC., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOJO, NOBUO;REEL/FRAME:022527/0327 Effective date: 20090327 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |