US3030978A - Pump valve structure - Google Patents

Pump valve structure Download PDF

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Publication number
US3030978A
US3030978A US75758758A US3030978A US 3030978 A US3030978 A US 3030978A US 75758758 A US75758758 A US 75758758A US 3030978 A US3030978 A US 3030978A
Authority
US
United States
Prior art keywords
valve
discharge
inlet
pump
disposed
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 - Lifetime
Application number
Other languages
English (en)
Inventor
Clifford J Griffith
James P Carr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FMC Corp
Original Assignee
FMC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US462002A external-priority patent/US2857219A/en
Priority to GB1860755A priority Critical patent/GB793057A/en
Application filed by FMC Corp filed Critical FMC Corp
Priority to US75758758 priority patent/US3030978A/en
Priority to FR797139A priority patent/FR1228612A/fr
Application granted granted Critical
Publication of US3030978A publication Critical patent/US3030978A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
    • 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
    • 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
    • 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
    • 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
    • F04B53/1032—Spring-actuated disc valves
    • 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
    • F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7937—Cage-type guide for stemless valves

Definitions

  • Another object of the invention is to provide a valve assembly for a reciprocating pump, which valve assembly is simple in construction.
  • Another object is to provide a valve assembly for a reciprocating pump, which valve assembly is unusually efiicient in operation.
  • FIG. 1 is a perspective of a pump incorporating the valve arrangement of the present invention.
  • FIG. 2 is an enlarged elevation taken along the lines 2-2 of FIG. 1, inlet and discharge conduits for the valve structure being shown in section.
  • FIG. 3 is a vertical section taken along the lines 33 of FIG. 2.
  • the reference numeral indicates a hollow pump housing having opposed side walls 12 and opposed end walls 13 (only one side wall and one end wall being shown). All four of the walls of the housing are integrally formed and have upper, inwardly inclined portions 14 connected at their upper ends by an integrally formed top wall 15. Mounted within the housing 10 is a reciprocating pumping mechanism which is disclosed in the aforementioned copending application Serial No. 462,002. The pumping mechanism is driven by a crank shaft 20 journaled in the lower ends of the housing walls 12.
  • the pumping mechanism is provided with two identical vertically extending piston rods 30, the upper end of one of said rods being shown in FIG. 3.
  • a piston assembly 35 is mounted at the upper end of each piston rod and is arranged for sliding movement in contact with a cylinder 36 provided by the internal surface of a sleeve 37.
  • Each sleeve 37 is disposed at its upper end in a recess 40 in a pumping head 41, and at its lower end in a recess 43 in a mounting plate 44 supported on and secured to the upper surface of a wall 45 which is integrally formed on the housing and extends around the upper portion of the pump mechanism (FIG. 1).
  • the pumping head 41 is secured on the upper end of the pump housing by bolts 48 (FIG. 2) that extend through suitable openings in the pumping head and are threaded into tapped openings in the mounting plate 44.
  • the pumping head 41 has two flow passages or pumping chambers 50 and 50a (FIGS. 2 and 3), each of which extends between one of the pump cylinders 36 and a respective cylindrical valve chamber 52.
  • Each valve chamber 52 is in flow communication with an inlet passage 60 through a port 61 and with a discharge passage 63 through a port 64.
  • Both of the inlet passages 60 (FIG. 2) are in communication with a common inlet conduit 66 through an internally threaded opening 67 (FIG. 1) which receives one end of the conduit.
  • both discharge passages 63 communicate with a common discharge conduit 68 through an opening 69 (FIG. 1) in which the conduit 68 is threaded.
  • a novel valve assembly is provided for controlling the flow of liquid from each inlet passage 60 to the associated discharge passage 63.
  • This valve assembly comprises an annular inlet valve seat 70 arranged to fit snugly in a recess 71 in the pumping head 41.
  • the valve seat has an outer annular groove 73 in which a resilient O-ring 75 is disposed in sealing engagement between the walls of the groove 73 and the wall of the recess 71.
  • Resting on top of the seat 70 is a cylindrical cage 78 which has a plurality of vertical slots 79 through which fluid may pass.
  • a solid valve disk 81 is positioned over the central opening of the annular valve seat '70 to close the passage formed therein.
  • a coil spring 83 is seated at its lower end in a recess formed in the valve disk 81 and bears at its upper end against an annular discharge valve seat 85 Which is snugly disposed in the port 64 formed in the pumping head.
  • An O-ring 88 is disposed in an annular groove in the discharge valve seat 85 in sealing engagement between the outer surface of the valve seat 85 and the inner surface of the port 64.
  • a solid valve disk 90 is positioned over the central opening of the annular valve seat 85 to close the passage formed therein.
  • a coil spring 91 is seated at its lower end in a recess formed in the valve disk 90 and bears at its upper end against a cylindrical cover 92 which is disposed in a cylindrical opening 93 provided in the pumping head.
  • a discharge cage 95 rests on top of the discharge valve seat 85 with its lower end extending into the port 64 in the pumping head 41.
  • the cage 95 has a plurality of slots 96 through: which liquid may pass.
  • a resilient O-ring 97 is disposed in an annular groove in the cover 92 in sealing engagement between the cover and the pumping head.
  • a bar 99 (FIG. 2) extends across the top of the pump housing and bears against both valve covers 92 to hold the two valve assemblies in place. The bar 99 is locked in position by a capscrew 100 which extends through the bar and is threadedly received in the pumping head 41.
  • a valve for a reciprocating pump comprising a valve housing having a cylindrical bore therein of uniform diameter, means defining an inlet and a discharge passage in communication with the bore at spaced points along the length thereof, a first symmetrical annulus disposed in said bore and peripherally sealed thereto for defining an inlet port from said inlet passage into the middle region of said bore, an inlet valve disk disposed over said inlet port, a first cage disposed in said bore middle region with one end thereof abutting said first symmetrical annulus, a second symmetrical annulus disposed in said bore and peripherally sealed thereto for defining a discharge port from said bore middle region into said discharge passage, said second symmetrical annulus being disposed in abutting relation with the other end of said first cage, 21 first spring disposed between said inlet valve disk and said second symmetrical annulus for urging the inlet disk to close the inlet port, a discharge valve disk disposed over said discharge port, a second cage disposed in said bore with one end thereof abutting said second
  • a pump valve structure comprising a housing with a cylindrical valve chamber of uniform bore open at one end having a coaxial inlet port of smaller diameter at the other end and with flow passage and discharge ports located therebetween, an inner valve struc- 4 ture inserted through said open end and stacked in operative position, said inner valve structure comprising a symmetrical annulus fitting around said inlet port in sealable relationship with the periphery of said cylindrical valve chamber forming an inlet valve seat, an inlet valve disk resting upon said inlet valve seat covering said inlet port, a spring resting on said inlet valve disk, a slotted cylindrical cage surrounding said spring and disk resting on said inlet valve seat, a discharge valve seat formed by a symmetrical annulus sealably engaging the periphery of said cylindrical valve chamber above said flow passage and resting upon said slotted cylindrical cage thus compressing said spring, a discharge valve disk resting on said discharge valve seat, a spring resting on said discharge valve disk, a slotted cylindrical cage resting upon said discharge valve seat surrounding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressor (AREA)
US75758758 1954-10-13 1958-08-27 Pump valve structure Expired - Lifetime US3030978A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1860755A GB793057A (en) 1954-10-13 1955-06-28 Reciprocating pump
US75758758 US3030978A (en) 1954-10-13 1958-08-27 Pump valve structure
FR797139A FR1228612A (fr) 1954-10-13 1959-06-10 Structure de soupape de pompe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US462002A US2857219A (en) 1954-10-13 1954-10-13 Pump
US75758758 US3030978A (en) 1954-10-13 1958-08-27 Pump valve structure

Publications (1)

Publication Number Publication Date
US3030978A true US3030978A (en) 1962-04-24

Family

ID=27040198

Family Applications (1)

Application Number Title Priority Date Filing Date
US75758758 Expired - Lifetime US3030978A (en) 1954-10-13 1958-08-27 Pump valve structure

Country Status (3)

Country Link
US (1) US3030978A (fr)
FR (1) FR1228612A (fr)
GB (1) GB793057A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399694A (en) * 1965-08-31 1968-09-03 Armco Steel Corp High speed, high power reciprocating pumps and valve stacks therefor
US3415271A (en) * 1965-08-19 1968-12-10 Woma Appbau Wolfgang Maasberg Valve assembly for reciprocating pumps and the like
US4477236A (en) * 1982-04-29 1984-10-16 Elliott Robert E Liquid end structure for reciprocating pump
US4618316A (en) * 1982-04-29 1986-10-21 Robert Elliott Liquid end for a reciprocating pump having easily removable valves and valve retainers
CN106939896A (zh) * 2017-05-04 2017-07-11 项光辉 一种高密封性的数字计量止回式离心泵

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120817A (en) * 1960-04-28 1964-02-11 Saunders Valve Co Ltd Pumps
US4432386A (en) * 1977-11-21 1984-02-21 Butterworth, Inc. Valve assembly for reciprocating plunger pump
US4277229A (en) * 1977-11-21 1981-07-07 Partek Corporation Of Houston High pressure fluid delivery system
US4716924A (en) * 1977-11-21 1988-01-05 Partek Corporation Of Houston Valve assembly for reciprocating plunger pump
NL1006129C2 (nl) * 1997-05-26 1998-12-01 Verder Holding B V Fluïdumpomp voorzien van een in volume verhandelbare pompkamer alsmede een cassette.

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL18294C (fr) *
US272198A (en) * 1883-02-13 blessing
GB185448A (en) * 1921-04-06 1922-09-06 Worthington Simpson Improvements in lift valves
US1983163A (en) * 1932-04-02 1934-12-04 B & D Mfg Company Inc High pressure valve seating structure
US2007677A (en) * 1934-11-09 1935-07-09 Westinghouse Air Brake Co Check valve device
US2192425A (en) * 1937-08-03 1940-03-05 Abercrombie Pump Company Valve guide
US2282490A (en) * 1940-06-04 1942-05-12 Otis C Martin Valve construction
US2304991A (en) * 1940-09-13 1942-12-15 Emsco Derrick & Equip Co Valve pot
US2306012A (en) * 1941-06-11 1942-12-22 John Eley Jr Check valve
DE853367C (de) * 1948-12-25 1952-10-23 Klein Mehrteiliges Ventilgehaeuse zum Einsetzen in den Zylinder einer Kolbenpumpe
US2797704A (en) * 1953-02-04 1957-07-02 John J Mcdermott Check valve
US2845085A (en) * 1955-12-12 1958-07-29 Tokheim Corp Separable, yieldable mounting for valves

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL18294C (fr) *
US272198A (en) * 1883-02-13 blessing
GB185448A (en) * 1921-04-06 1922-09-06 Worthington Simpson Improvements in lift valves
US1983163A (en) * 1932-04-02 1934-12-04 B & D Mfg Company Inc High pressure valve seating structure
US2007677A (en) * 1934-11-09 1935-07-09 Westinghouse Air Brake Co Check valve device
US2192425A (en) * 1937-08-03 1940-03-05 Abercrombie Pump Company Valve guide
US2282490A (en) * 1940-06-04 1942-05-12 Otis C Martin Valve construction
US2304991A (en) * 1940-09-13 1942-12-15 Emsco Derrick & Equip Co Valve pot
US2306012A (en) * 1941-06-11 1942-12-22 John Eley Jr Check valve
DE853367C (de) * 1948-12-25 1952-10-23 Klein Mehrteiliges Ventilgehaeuse zum Einsetzen in den Zylinder einer Kolbenpumpe
US2797704A (en) * 1953-02-04 1957-07-02 John J Mcdermott Check valve
US2845085A (en) * 1955-12-12 1958-07-29 Tokheim Corp Separable, yieldable mounting for valves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415271A (en) * 1965-08-19 1968-12-10 Woma Appbau Wolfgang Maasberg Valve assembly for reciprocating pumps and the like
US3399694A (en) * 1965-08-31 1968-09-03 Armco Steel Corp High speed, high power reciprocating pumps and valve stacks therefor
US4477236A (en) * 1982-04-29 1984-10-16 Elliott Robert E Liquid end structure for reciprocating pump
US4618316A (en) * 1982-04-29 1986-10-21 Robert Elliott Liquid end for a reciprocating pump having easily removable valves and valve retainers
CN106939896A (zh) * 2017-05-04 2017-07-11 项光辉 一种高密封性的数字计量止回式离心泵

Also Published As

Publication number Publication date
GB793057A (en) 1958-04-09
FR1228612A (fr) 1960-08-31

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