CA1054855A - Valve guide for poppet valve - Google Patents
Valve guide for poppet valveInfo
- Publication number
- CA1054855A CA1054855A CA255,333A CA255333A CA1054855A CA 1054855 A CA1054855 A CA 1054855A CA 255333 A CA255333 A CA 255333A CA 1054855 A CA1054855 A CA 1054855A
- Authority
- CA
- Canada
- Prior art keywords
- valve
- support
- collar
- valve guide
- sleeve
- 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.)
- Expired
Links
Classifications
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- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
- F04B53/1022—Disc valves having means for guiding the closure member axially
- F04B53/1027—Disc valves having means for guiding the closure member axially the guiding means being provided at both sides of the disc
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- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Abstract of the Disclosure. A poppet valve guide mech-anism for use in pumps such as large piston-type pumps uses a valve guide sleeve secured to an outwardly extending base plate which has a plurality of support legs attached thereto. The guide and sup-port assembly are retained in place by a partially tapered locking bar transversely engaged on said assembly, and arranged to seat the support legs tightly on an annular ledge formed in the pump's fluid-end chamber.
1a
1a
Description
` ~o54855 Background o the Invention. In the construction of pumps and more particularly in the construction of large pumps such as the piston type triplex pumps utilized in drilling and servicing of oil wells, one particularly troublesome area in the pump construction involves the valving structure in the fluid end of the pump. Each cylinder of the pump generally has associated therewith a suction end and a discharge end each of which communi-cates the pumped fluid end with intake and discharge conduits via valving arrangements such as poppet valves.
A particularly troublesome area in the construction of the valving systems in p~nped ~luid ends involves providing guide assemblies for these poppet valves which provide lateral support yet allow the valves to move vertically into and off of the valve seat. The suction and discharge valves of these large triplex pumps are usually spring loaded poppet valves having valve stems at both ends of the valve member. The valve stems provide an elongated portion of the valve for extension into a cylindrical or other shaped valve guide opening which prevents lateral dis-tortion of the valve member during its cyclic operation.
A particular problem arises in the valve guide construc-tion of the intake valve in a large multiplex pump because of the necessary requirement that the inner valve stem portion of the valve must be guided within a valve guide located inside the flow area of the pump fluid end. Such valve guide must be removable from the fluid end for repair and replacement of the valve member and other pump parts, yet the valve guide must be easily placed within the fluid end in such an orientation that it provides rigid dependable valve guiding operation.
The pumps available today utilize valve guides on the intake vaive which valve guides are secured by means such as bolts, clamps, set screws and other arrangements. These valve guide anchoring means suffer form the disadvantages that they are complex ```- 1054855 and difficult to install. The problems arise from the close work~ng space within the fluid end which restricts movement of the mechanic during installation and removal of the valve components.
Thus, the bolting, clamping and other arrangements require extensive use of hand tools within the narrow confines of the fluid end making change-out of pump components extremely difficult and hazardous for the working personnel. The present invention provides valve guide arrangements which may be installed within the fluid end of a large pump by means requiring no bolting or clamping or other complex securing arrangements.
Broadly speaking the present invention may be defined as providing in a pump having a fluid end with a spring-biased valve therein communicating with a pumped fluid chamber, a valve guide assembly for placement in the fluid chamber in guiding relationship with the valve; the valve guide assembly comprising:
valve guide collar means adapted for slitable engagement with , . ...
the valve; support means secured to the collar means and adapted to extend outward therefrom into abutting engagement with a wall in the fluid chambers; and, a support bar engageable with the collar means and adàpted to move the support means into tight abutting engagement with the wall of the fluid chamber.
BRIEF DESCRIPTION OF THE DRANINGS
Figure 1 is a side cross-sectional view of the valving apparatus installed in the fluid end of a piston type pump.
Figures 2a and 2b illustrate a portion of the valve guide apparatus.
Figures 3a and 3b, appearing on the same sheet as Figure 1, illustrate the support bar for the valve guide apparatus.
Figures 4a and 4b illustrate schematic views of the vlave guide arrangement with the valve in place.
Figures 5a and 5b illustrate an alternate embodiment of the valve guide apparatus.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Figure 1 is a partial cross-sectional view of a piston type pump 11 having a generally cylindrical fluid piston 12 mounted at the end of an elongated piston rod 14 and slidably located within pump cylinder 13. A fluid end assembly 15 is attached by means such as bolts to the end of pump 11 in communication with cylinder 13. Fluid end 15 has an intake bore 16 and a discharge bore 17. A fluid supply conduit 18 is clamped to fluid end 15 in communication with bore 16. The extension of cylinder 13 denoted as bore 13a past bores 16 and 17 is closed off by a bore plug 19 secured to the fluid end and sealingly engaged therein.
~, -: 11154855 During operation of the pumping cylinder illustrated, the piston 12 and rod 14 move to the left in cylinder 13 thereby estab-lishing a suction within fluid end chamber 20 which suction reacts on valve member 21 moving it inward into bore 20 against the com-pression of spring 22 thereby drawing in fluid from conduit 18.
Valve 21 is provided with an upstream stem 23 and a downstream stem 24 with the upstream stem ~3 being slidable within a central open-ing 25 of the valve seat insert 26. Valve seat 26 has one or more flow passages 27 therethrough for communication of fluid from bore 1~ 20 to bore 16. Valve stem 24 is slidably located within a generally cylindrical valve guide collar 30 having a elastomeric inner linex 28 located concentrically therewithin. An elongated relatively flat support bar 29 is provided for abutment with the upper extrem-ity of bore 20 and simultaneous abutmRnt and locking engagement with collar 30.
L Referring now to figures 2a and 2b, the guide collar 30 is s4Own with a lateral support plate 31 securedly attached thereto and extending outwardly from diametrically opposed sides of collar 30. Support plate 31 has at each end a downward projecting abutment shoulaer 32. Collar 30 is a generally cylindrical member having a guide passage 33 therein, a generally frustro-conical upper surface 34, and a transverse lateral slot 35 passing through the top there-of. O~e or more fluid pressure relief ports 36 are also provided through the top of collar 30. Support plate 31 may be secured to collar 30 by any acceptable means such as welding or press-fitting.
In figure 1, support plate 31 is viewed in cross-sectional end view and appears in abutment with spring 22.
Figures 3a and 3b illustrate the support bar 29 of figure 1. The bar is a substantially flat elongated plate having a plural-ity of openings 37 therethrough for lightening the member and for providing flow relief therethrough. The bar 29 has a sloped edge 38, a rounded straight edge 39, and a raised shoulder 40 at one end. Figure 3b illustrates a cross-sectional view of bar 29 taken at line b-b of figure 3a. Figure 3b illustrates the rounded side 39 and the rounded shoulder 40 along one edge of the bar. ~ar 29 is sized for relatively close fitting engagement within channel 35 of collar 30. Furthermore, the curvature of side 39 and shoul-., .
der 40 is selected to coincide generally with the curvature of the wall of bore passage 20 in the fluid end.
Figure 4a illustrates a schematic top view of the guide assembly looking downward toward the valve member 21. A pair of opposed ledges 42 are provided within the vertical bore 16 and 17 of the fluid end for allowing abutment thereon of shoulders 32 of support plate 31. The placement of shoulders 42 is arranged to allow relatively tight fitting engagement of the support p~ate 29 between collar 30 and the Upper surface of bore passage 20.
Referring to figure 4b, the guide assembly is shown in place in bore passage 20 and placement of the valve 21 is shown merely for purposes of illustration. It should be noted that the coil spring 22 normally would be placed in compression between plate 3~ and the annularly extending portion of valve 21. As pre-viously mentioned, the location of support ledges 42 is arranged such that when support plate 31 is placed thereon, the engagement of bar 29 in channel 35 will provide a downward tightening of the valve guide arrangement within bore 20. More specifically, it is preferable that a slight flexing of plate 31 is achieved when bar 29 is moved into place in channel 35 in abutment with the upper wall of bore 20.
An elastomeric guide sleeve 28 provides sliding contact between the valve stem 24 and the valve guide mechanism. Assembly of the valve guide mechanism about the valve is accomplished by the following procedure: The spring 22 is first placed about the valve stem. The valve guide collar 30 with support plate 31 is locatad over the spring until the collar 30 extends over the valve 1~54855 stem inside the spring resulting in abutment of the upper portion of the spring with the bottom side of plate 31. The plate 31 may then be rotated about the valve stem 24 until shoulders 32 are lo-cated directly above ledges 42 and then the collar may be comPressed downward over the spring until the support bar 29 is inserted, nar-- row end first, into the channel. As the narrow end of bar 29 moves through the channel, the wider portion of the bar will serve to wedge the collar and support plate 31 down into tight abutting en-gagement on ledges 42 until the bar 29 has been moved completely into its proper location in the fluid end. Proper location of the bar is insured by providing a recess 41 in the fluid end which re-cess 41 is shaped generally to compliment shoulder 40 of bar 29, which shoulder 40 when engaged in recess 41 insures proper align-ment and placement of support bar 29. The bore plug 19 is then re-placed and provides abutting engagement with bar 29, maintaining it in proper lateral orientation. The combination of the abutment of plug 19 and the engagement of shoulder 40 in recess insures no move-ment of bar 29 can occur during the cyclic operation of the pumping appar~tus.
Figures 5a and 5b illustrate an alternate embodiment of the ~aLve guide mechanism utilizing a tripod support arrangement rather than the lateral bar arrangement of the first embodiment~
In this embodiment, a generally cylindrical valve guide collar 130 is sec~realy fixed into a horizontal foundation plate 131 to which are attached thr~e equally spaced arcuate support legs 132. ~
counter bore 142 is formed in the upper portion of passage 16 re-sulting in an inwardly extending annular ledge. The three support legs 132 of the guide collar mechanism are adapted for engagement within the counter bore 142 abutting the resultantly formed inward-ly extending annular ledge.
A pair of transverse shoulders 135 are attached to the top of plate 131 in such a manner as to form a transverse seating channel for receiving a relatively snug fitting relationship with the support bar 29. The support plate 131 is adapted to provide an annular abutting surface outside of collar 130 for receiving in abutment coil spring 22 encircling the valve stem 24.
Assembly of the valve guide mechanism within the pump fluid end is achieved by placing the coil spring 22 over the valve stem, lowering the tripod valve guide over the coil spring and valve stem 24 and compressing the valve guide downward on the spring 22 until the three support legs 132 bottom-out in counter bore 142.
The transverse support bar 29 is then slid through the channel formed by shoulders 135 until the locking shoulder 40 on bar 29 en-gages in locking recess 41 formed internally within the fluid end housing 15. Thus it can be seen that the present invention pro-vides a dependable yet easily installed valve guide arrangement ior reciprocating poppet type valves which arrangement has the advantage of being easily insertable and removable from the valving mechanism and yet still provides superior valve guide operation.
Although certain preferred embodiments of the invention have been herein described in order to provide an understanding of the seneral principles of the invention, it will be appreciated that various changes and innovations can be effected in the de-scribed valve guide mechanism without departing from these prin-ciples. For example, it is obvious that one could alter the num-ber of legs provided on the valve guide support structure. Any number of legs from three on up could be utilized, limited onl~ by the space provided around the counter bore ledge. Also, it would be possible to make the support legs wider or narrower or make them shorter or longer. The collar and plate could be made as an inter-gral unit or the collar could be used alone with the support legs attached directly to the collar and providing abutment for the coil spring. It is also obvious that a liner of some other material, such as a elastomeric material, coula be used inside the guide collar. The invention therefore is declared to cover all changes and modifications of the specific example of the invention herein di~closed for purposes of illustration which do not constitute de-partures from the spirit and scope of the invention.
,
A particularly troublesome area in the construction of the valving systems in p~nped ~luid ends involves providing guide assemblies for these poppet valves which provide lateral support yet allow the valves to move vertically into and off of the valve seat. The suction and discharge valves of these large triplex pumps are usually spring loaded poppet valves having valve stems at both ends of the valve member. The valve stems provide an elongated portion of the valve for extension into a cylindrical or other shaped valve guide opening which prevents lateral dis-tortion of the valve member during its cyclic operation.
A particular problem arises in the valve guide construc-tion of the intake valve in a large multiplex pump because of the necessary requirement that the inner valve stem portion of the valve must be guided within a valve guide located inside the flow area of the pump fluid end. Such valve guide must be removable from the fluid end for repair and replacement of the valve member and other pump parts, yet the valve guide must be easily placed within the fluid end in such an orientation that it provides rigid dependable valve guiding operation.
The pumps available today utilize valve guides on the intake vaive which valve guides are secured by means such as bolts, clamps, set screws and other arrangements. These valve guide anchoring means suffer form the disadvantages that they are complex ```- 1054855 and difficult to install. The problems arise from the close work~ng space within the fluid end which restricts movement of the mechanic during installation and removal of the valve components.
Thus, the bolting, clamping and other arrangements require extensive use of hand tools within the narrow confines of the fluid end making change-out of pump components extremely difficult and hazardous for the working personnel. The present invention provides valve guide arrangements which may be installed within the fluid end of a large pump by means requiring no bolting or clamping or other complex securing arrangements.
Broadly speaking the present invention may be defined as providing in a pump having a fluid end with a spring-biased valve therein communicating with a pumped fluid chamber, a valve guide assembly for placement in the fluid chamber in guiding relationship with the valve; the valve guide assembly comprising:
valve guide collar means adapted for slitable engagement with , . ...
the valve; support means secured to the collar means and adapted to extend outward therefrom into abutting engagement with a wall in the fluid chambers; and, a support bar engageable with the collar means and adàpted to move the support means into tight abutting engagement with the wall of the fluid chamber.
BRIEF DESCRIPTION OF THE DRANINGS
Figure 1 is a side cross-sectional view of the valving apparatus installed in the fluid end of a piston type pump.
Figures 2a and 2b illustrate a portion of the valve guide apparatus.
Figures 3a and 3b, appearing on the same sheet as Figure 1, illustrate the support bar for the valve guide apparatus.
Figures 4a and 4b illustrate schematic views of the vlave guide arrangement with the valve in place.
Figures 5a and 5b illustrate an alternate embodiment of the valve guide apparatus.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Figure 1 is a partial cross-sectional view of a piston type pump 11 having a generally cylindrical fluid piston 12 mounted at the end of an elongated piston rod 14 and slidably located within pump cylinder 13. A fluid end assembly 15 is attached by means such as bolts to the end of pump 11 in communication with cylinder 13. Fluid end 15 has an intake bore 16 and a discharge bore 17. A fluid supply conduit 18 is clamped to fluid end 15 in communication with bore 16. The extension of cylinder 13 denoted as bore 13a past bores 16 and 17 is closed off by a bore plug 19 secured to the fluid end and sealingly engaged therein.
~, -: 11154855 During operation of the pumping cylinder illustrated, the piston 12 and rod 14 move to the left in cylinder 13 thereby estab-lishing a suction within fluid end chamber 20 which suction reacts on valve member 21 moving it inward into bore 20 against the com-pression of spring 22 thereby drawing in fluid from conduit 18.
Valve 21 is provided with an upstream stem 23 and a downstream stem 24 with the upstream stem ~3 being slidable within a central open-ing 25 of the valve seat insert 26. Valve seat 26 has one or more flow passages 27 therethrough for communication of fluid from bore 1~ 20 to bore 16. Valve stem 24 is slidably located within a generally cylindrical valve guide collar 30 having a elastomeric inner linex 28 located concentrically therewithin. An elongated relatively flat support bar 29 is provided for abutment with the upper extrem-ity of bore 20 and simultaneous abutmRnt and locking engagement with collar 30.
L Referring now to figures 2a and 2b, the guide collar 30 is s4Own with a lateral support plate 31 securedly attached thereto and extending outwardly from diametrically opposed sides of collar 30. Support plate 31 has at each end a downward projecting abutment shoulaer 32. Collar 30 is a generally cylindrical member having a guide passage 33 therein, a generally frustro-conical upper surface 34, and a transverse lateral slot 35 passing through the top there-of. O~e or more fluid pressure relief ports 36 are also provided through the top of collar 30. Support plate 31 may be secured to collar 30 by any acceptable means such as welding or press-fitting.
In figure 1, support plate 31 is viewed in cross-sectional end view and appears in abutment with spring 22.
Figures 3a and 3b illustrate the support bar 29 of figure 1. The bar is a substantially flat elongated plate having a plural-ity of openings 37 therethrough for lightening the member and for providing flow relief therethrough. The bar 29 has a sloped edge 38, a rounded straight edge 39, and a raised shoulder 40 at one end. Figure 3b illustrates a cross-sectional view of bar 29 taken at line b-b of figure 3a. Figure 3b illustrates the rounded side 39 and the rounded shoulder 40 along one edge of the bar. ~ar 29 is sized for relatively close fitting engagement within channel 35 of collar 30. Furthermore, the curvature of side 39 and shoul-., .
der 40 is selected to coincide generally with the curvature of the wall of bore passage 20 in the fluid end.
Figure 4a illustrates a schematic top view of the guide assembly looking downward toward the valve member 21. A pair of opposed ledges 42 are provided within the vertical bore 16 and 17 of the fluid end for allowing abutment thereon of shoulders 32 of support plate 31. The placement of shoulders 42 is arranged to allow relatively tight fitting engagement of the support p~ate 29 between collar 30 and the Upper surface of bore passage 20.
Referring to figure 4b, the guide assembly is shown in place in bore passage 20 and placement of the valve 21 is shown merely for purposes of illustration. It should be noted that the coil spring 22 normally would be placed in compression between plate 3~ and the annularly extending portion of valve 21. As pre-viously mentioned, the location of support ledges 42 is arranged such that when support plate 31 is placed thereon, the engagement of bar 29 in channel 35 will provide a downward tightening of the valve guide arrangement within bore 20. More specifically, it is preferable that a slight flexing of plate 31 is achieved when bar 29 is moved into place in channel 35 in abutment with the upper wall of bore 20.
An elastomeric guide sleeve 28 provides sliding contact between the valve stem 24 and the valve guide mechanism. Assembly of the valve guide mechanism about the valve is accomplished by the following procedure: The spring 22 is first placed about the valve stem. The valve guide collar 30 with support plate 31 is locatad over the spring until the collar 30 extends over the valve 1~54855 stem inside the spring resulting in abutment of the upper portion of the spring with the bottom side of plate 31. The plate 31 may then be rotated about the valve stem 24 until shoulders 32 are lo-cated directly above ledges 42 and then the collar may be comPressed downward over the spring until the support bar 29 is inserted, nar-- row end first, into the channel. As the narrow end of bar 29 moves through the channel, the wider portion of the bar will serve to wedge the collar and support plate 31 down into tight abutting en-gagement on ledges 42 until the bar 29 has been moved completely into its proper location in the fluid end. Proper location of the bar is insured by providing a recess 41 in the fluid end which re-cess 41 is shaped generally to compliment shoulder 40 of bar 29, which shoulder 40 when engaged in recess 41 insures proper align-ment and placement of support bar 29. The bore plug 19 is then re-placed and provides abutting engagement with bar 29, maintaining it in proper lateral orientation. The combination of the abutment of plug 19 and the engagement of shoulder 40 in recess insures no move-ment of bar 29 can occur during the cyclic operation of the pumping appar~tus.
Figures 5a and 5b illustrate an alternate embodiment of the ~aLve guide mechanism utilizing a tripod support arrangement rather than the lateral bar arrangement of the first embodiment~
In this embodiment, a generally cylindrical valve guide collar 130 is sec~realy fixed into a horizontal foundation plate 131 to which are attached thr~e equally spaced arcuate support legs 132. ~
counter bore 142 is formed in the upper portion of passage 16 re-sulting in an inwardly extending annular ledge. The three support legs 132 of the guide collar mechanism are adapted for engagement within the counter bore 142 abutting the resultantly formed inward-ly extending annular ledge.
A pair of transverse shoulders 135 are attached to the top of plate 131 in such a manner as to form a transverse seating channel for receiving a relatively snug fitting relationship with the support bar 29. The support plate 131 is adapted to provide an annular abutting surface outside of collar 130 for receiving in abutment coil spring 22 encircling the valve stem 24.
Assembly of the valve guide mechanism within the pump fluid end is achieved by placing the coil spring 22 over the valve stem, lowering the tripod valve guide over the coil spring and valve stem 24 and compressing the valve guide downward on the spring 22 until the three support legs 132 bottom-out in counter bore 142.
The transverse support bar 29 is then slid through the channel formed by shoulders 135 until the locking shoulder 40 on bar 29 en-gages in locking recess 41 formed internally within the fluid end housing 15. Thus it can be seen that the present invention pro-vides a dependable yet easily installed valve guide arrangement ior reciprocating poppet type valves which arrangement has the advantage of being easily insertable and removable from the valving mechanism and yet still provides superior valve guide operation.
Although certain preferred embodiments of the invention have been herein described in order to provide an understanding of the seneral principles of the invention, it will be appreciated that various changes and innovations can be effected in the de-scribed valve guide mechanism without departing from these prin-ciples. For example, it is obvious that one could alter the num-ber of legs provided on the valve guide support structure. Any number of legs from three on up could be utilized, limited onl~ by the space provided around the counter bore ledge. Also, it would be possible to make the support legs wider or narrower or make them shorter or longer. The collar and plate could be made as an inter-gral unit or the collar could be used alone with the support legs attached directly to the collar and providing abutment for the coil spring. It is also obvious that a liner of some other material, such as a elastomeric material, coula be used inside the guide collar. The invention therefore is declared to cover all changes and modifications of the specific example of the invention herein di~closed for purposes of illustration which do not constitute de-partures from the spirit and scope of the invention.
,
Claims (18)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a pump having a fluid end with a spring-biased valve therein communicating with a pumped fluid chamber, a valve guide assembly for placement in said fluid chamber in guiding relationship with said valve; said valve guide assembly comprising:
valve guide collar means adapted for slidable engage-ment with said valve;
support means secured to said collar means and adapted to extend outward therefrom into abutting engagement with a wall in the fluid chamber; and, a support bar engageable with said collar means and adapted to move said support means into tight abutting engagement with the wall of the fluid chamber.
valve guide collar means adapted for slidable engage-ment with said valve;
support means secured to said collar means and adapted to extend outward therefrom into abutting engagement with a wall in the fluid chamber; and, a support bar engageable with said collar means and adapted to move said support means into tight abutting engagement with the wall of the fluid chamber.
2. The valve guide assembly of claim 1 wherein said support means comprises a plurality of outward and downward projecting leg supports attached to said collar means and being all substantially similar in size and shape.
3. The valve guide apparatus of claim 1 wherein said guide collar means comprises a generally cylindrical sleeve having an outwardly extending annular plate secured thereto, with said plate having said support means secured thereto and parallel transverse lateral support shoulders thereon for receiving said support bar therebetween.
4. The valve guide assembly of claim 2 wherein said plurality of outward and downward projecting leg supports comprises three supports equi-spaced around the periphery of said collar means.
5. The valve guide assembly of claim 1 wherein said guide collar means comprises a generally cylindrical sleeve.
6. In a pump fluid end having a pumped fluid chamber and a spring-biased valve communicating with said chamber, the improvement comprising:
valve guide means arranged for slidable engagement with said valve and abutment with the spring on said valve, and further comprising:
tubular valve sleeve means slidably engage-able on said valve;
support means on said sleeve means and extending outward therefrom;
retaining shoulder means formed in the inner wall of said chamber and arranged to receive in abutment said support means; and, locking bar means adapted to abut a wall of said chamber and said sleeve means and arranged to move said support means into tight abutting engagement with said shoulder means.
valve guide means arranged for slidable engagement with said valve and abutment with the spring on said valve, and further comprising:
tubular valve sleeve means slidably engage-able on said valve;
support means on said sleeve means and extending outward therefrom;
retaining shoulder means formed in the inner wall of said chamber and arranged to receive in abutment said support means; and, locking bar means adapted to abut a wall of said chamber and said sleeve means and arranged to move said support means into tight abutting engagement with said shoulder means.
7. The pump fluid end of claim 6 wherein said sleeve means comprises a tubular sleeve having a cylindrical bore passage therethrough; a top plate attached thereon and extending radially outward therefrom in attachment with said support means;
and parallel transverse shoulders on said top plate forming a transverse channel for receiving said locking bar means.
and parallel transverse shoulders on said top plate forming a transverse channel for receiving said locking bar means.
8. The pump fluid end of claim 7 wherein said support means comprises a plurality of leg supports attached to said top plate and each being generally similar in length to the others.
9. A valve guide assembly for use with a reciprocating spring-biased stem valve in a pumped fluid chamber, said guide assembly comprising:
a tubular guide sleeve adapted to receive a valve stem slidably therein;
a lateral plate at one end of said sleeve and having channel forming shoulders thereon;
a plurality of arcuate support legs attached to said plate in equi-spaced relationship around the periphery thereof;
and, locking bar means adapted to engage snugly within said shoulders and sized to abut one wall of said fluid chamber and move said support legs into tight abutment against the opposite wall of said chamber.
a tubular guide sleeve adapted to receive a valve stem slidably therein;
a lateral plate at one end of said sleeve and having channel forming shoulders thereon;
a plurality of arcuate support legs attached to said plate in equi-spaced relationship around the periphery thereof;
and, locking bar means adapted to engage snugly within said shoulders and sized to abut one wall of said fluid chamber and move said support legs into tight abutment against the opposite wall of said chamber.
10. The valve guide assembly of claim 9 wherein said plurality of support legs comprises three equi-spaced identical legs.
11. In a reciprocating pump having a fluid end with re-ciprocating spring-biased stemmed valves arranged for alternatively communicating discharge and suction passages with a pumped fluid chamber, a valve guide assembly comprising:
a valve guide collar adapted to receive the stem of a valve member slidably therein;
a support plate secured to said collar, extending outward therefrom, and arranged for abutment with ledges in the pump fluid end; and, a support bar engageable with said collar and the wall of the fluid chamber and adapted to force said support plate into tight abutment with ledges in the fluid end
a valve guide collar adapted to receive the stem of a valve member slidably therein;
a support plate secured to said collar, extending outward therefrom, and arranged for abutment with ledges in the pump fluid end; and, a support bar engageable with said collar and the wall of the fluid chamber and adapted to force said support plate into tight abutment with ledges in the fluid end
12. The valve guide assembly of claim 11 wherein said guide collar comprises a cylindrical tubular sleeve having an open valve stem end and a relatively closed end, with a transverse slot through said relatively closed end adapted for relatively snug fitting engagement of said support bar therein.
13. The valve guide assembly of claim 11 further compris-ing elastomeric contact sleeve means in said collar adapted for slidable contact with a valve stem therein.
14. The valve guide assembly of claim 12 wherein said sup-port bar comprises a relatively flat, elongated plate having a tap-ered wedge-end along one end and locking tab means at the opposite end.
15. In a pump fluid end having a pumped-fluid chamber, a bore passage transverse to the chamber, a discharge valve in one end of the transverse bore passage, and a spring-biased intake valve in the opposite end of the transverse bore passage, the im-provement comprising:
intake valve guide means arranged for slidable engagement with said intake valve and abutment with the spring on said intake valve, and further comprising:
a tubular valve guide collar;
a transverse support plate fixedly retaining said collar and extending outwardly therefrom;
retaining ledge means formed in the inner wall of the fluid chamber and adapted to receive said support plate; and, locking bar means adapted to slide between said col-lar and the wall of said fluid chamber opposite the intake valve, and arranged for forcing said support plate into tight abutment with said ledge means.
intake valve guide means arranged for slidable engagement with said intake valve and abutment with the spring on said intake valve, and further comprising:
a tubular valve guide collar;
a transverse support plate fixedly retaining said collar and extending outwardly therefrom;
retaining ledge means formed in the inner wall of the fluid chamber and adapted to receive said support plate; and, locking bar means adapted to slide between said col-lar and the wall of said fluid chamber opposite the intake valve, and arranged for forcing said support plate into tight abutment with said ledge means.
16. The apparatus of claim 15 wherein said tubular valve guide collar comprises a generally cylindrical sleeve extending through said support plate and fixedly secured thereto, with an opened and a slotted end; said slotted end adapted for snug-fitting engagement about said locking bar means.
17. The apparatus of claim 15 wherein said support plate further comprises an elongated flat plate having arcuate ends adapted for relatively close-fitting arrangement in said trans-verse bore passage and further having abutment shoulder means attached to said arcuate ends and arranged for abutment with said ledge means.
18. The apparatus of claim 15 wherein said ledge means comprises partially circular, opposed ledges in said fluid end formed by counterboring said transverse passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59928575A | 1975-07-25 | 1975-07-25 | |
| US05/599,201 US3989419A (en) | 1975-07-25 | 1975-07-25 | Valve guide for poppet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1054855A true CA1054855A (en) | 1979-05-22 |
Family
ID=27083269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA255,333A Expired CA1054855A (en) | 1975-07-25 | 1976-06-21 | Valve guide for poppet valve |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1054855A (en) |
| FR (1) | FR2319032A1 (en) |
| GB (1) | GB1548677A (en) |
| IT (1) | IT1066238B (en) |
| MX (1) | MX143131A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2163472A (en) * | 1936-07-07 | 1939-06-20 | Oil Well Supply Co | Valve |
| GB549823A (en) * | 1941-05-06 | 1942-12-09 | Jean Zwicky | Improvements in reciprocating pumps |
| US2527949A (en) * | 1946-04-23 | 1950-10-31 | Oil Well Supply Co | Slush pump valve cover |
-
1976
- 1976-06-21 CA CA255,333A patent/CA1054855A/en not_active Expired
- 1976-07-02 GB GB2773276A patent/GB1548677A/en not_active Expired
- 1976-07-13 FR FR7621415A patent/FR2319032A1/en active Granted
- 1976-07-20 MX MX16559076A patent/MX143131A/en unknown
- 1976-07-23 IT IT5059276A patent/IT1066238B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1066238B (en) | 1985-03-04 |
| MX143131A (en) | 1981-03-20 |
| FR2319032B1 (en) | 1983-01-21 |
| FR2319032A1 (en) | 1977-02-18 |
| GB1548677A (en) | 1979-07-18 |
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