US3133559A - Sectional control valves - Google Patents

Sectional control valves Download PDF

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Publication number
US3133559A
US3133559A US18390462A US3133559A US 3133559 A US3133559 A US 3133559A US 18390462 A US18390462 A US 18390462A US 3133559 A US3133559 A US 3133559A
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US
United States
Prior art keywords
sections
passage
valve
fluid
passage means
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
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English (en)
Inventor
Francis H Tennis
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.)
Koehring Co
Hydraulic Unit Specialties Co
Original Assignee
Hydraulic Unit Specialties Co
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 to NL123239D priority Critical patent/NL123239C/xx
Priority to NL290550D priority patent/NL290550A/xx
Priority to BE630251D priority patent/BE630251A/xx
Priority to US18390462 priority patent/US3133559A/en
Application filed by Hydraulic Unit Specialties Co filed Critical Hydraulic Unit Specialties Co
Priority to GB2176962A priority patent/GB980932A/en
Priority to DEH46478A priority patent/DE1149583B/de
Priority to FR929613A priority patent/FR1353251A/fr
Application granted granted Critical
Publication of US3133559A publication Critical patent/US3133559A/en
Anticipated expiration legal-status Critical
Assigned to KOEHRING COMPANY, A CORP. OF DE reassignment KOEHRING COMPANY, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KOEHRING COMPANY A WI CORP.
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust

Definitions

  • Sectional control valves generally comprise a top manlfold to which pressure fluid is supplied from a pump, a bottom manifold in which exhaust fluid isv collected prior .to return thereof to a reservoir, and as many similar control sections or valve units as desired stacked one upon the other and confined between the top and bottom manifolds.
  • Each of the valve units contains one or a pair of service passages which open laterally to one side of the unit, and
  • a valve element that is movable to selectively communisage constitutes fluid return means that communicates with a chamber in the exhaust manifold.
  • registering passages in all of the valve units of the bank or stack provide a through passage leading entirely through the stack, and which communicates the inlet manifold with the exhaust manifold when all of the valve elements of the stack are in neutral positions. Shifting of the valve element of any unit out of neutral to an operating position blocks the through passage and causes pressure fluid to be diverted to a service passage via feeder passage means in the unit.
  • the through passage also serves as the supply passage, and pressure fluid is diverted from it into the feeder passage means whenever the valve element of any valve unit is shifted to an operating position.
  • other registering passages in all of the valve units provide a supply passage separate from the through passage, leading downwardly from the inlet manifold through all of the valve units and communicating with the feeder passage means in each unit.
  • this invention to provide a control valve of sectional construction wherein the mating faces of the sections are so formed that any hydraulic fluid which seeps into the junctions between valve sections from the registering ends of high pressure carry-over passages is free to flow at low pressure into a return passage for return to the reservoir of the system with which the valve is used, so as to assure against external leakage of fluid at the junctions of the valve sections.
  • a further purpose of the invention is to provide a sectional control valve of the character described, wherein a single low pressure O-ring seal or gasket confined between adjacent housing sections and surrounding the sump or moat effectively precludes external leakage of fluid from the joints between the sections.
  • FIGURE 1 is a side elevational view of a sectional control valve embodying this invention
  • FIGURE 2 is a cross sectional view taken on the plane of the line 22 in FIGURE 1;
  • FIGURE 3 is a longitudinal sectional view taken on the plane of the line 3-3 of FIGURE 1;
  • FIGURE 4 is a perspective view of portions of two adjoining sections of the control valve, showing the sections separated and illustrating the construction employed at their mating faces to prevent external leakage of hydraulic fluid from their junction.
  • sectional hydraulic control valve which embodies this invention is comprised of the customary top and bottom housing sections 5 and 6, respectively providing inlet and exhaust manifolds, and a body that is comprised of any desired number of individual control sections .or valve units 7 stacked one upon the other .and confined between the top and bottom manifolds.
  • a plurality of bolts 8 pass downwardly through both manifolds and the stack of control sections therebetween to hold all of the sections tightly clamped together.
  • the body of the control valve has here been illustrated as comprising two valve units 7, which may be identical in every respect, and which are of the open center type and adapted to effect parallel circuit operation of two different hydraulic circuits (not shown).
  • the upper manifold 5 has an inlet or pump port 9 at its top, an inlet chamber 10 in its interior, and an outlet port 11 opening through a substantially central portion of its bottom.
  • the exhaust manifold 6 has an exhaust chamber 12 in its interior, an inlet port 13 opening through its top in vertical alignment with the port 11 of the top manifold, and in this case, the exhaust manifold also has an outlet or reservoir port 14 opening through its bottom.
  • valve units 7 have been shown as of the double acting type. Each has a bore 15 and a spool type valve element 16 which is slidable endwise back and forth in the bore from a neutral position seen in FIGURE 2, to each of a pair of operating positions in either of which it is adapted to communicate one of a pair of service passages 17 with the chamber 10 of the inlet manifold and the other service passage with the chamber 12 of the exhaust manifold.
  • the service passages 17 extend laterally outwardly from the bore 15 and terminate in motor ports 18 which open laterally to one side of the unit and are connectible with the opposite ends of a hydraulic cylinder or the like.
  • Each of the service passages is selectively communicable with either the inlet or the outlet manifold under the control of the valve element 16.
  • the body of the control valve is provided with supply and exhaust headers 19 and 20, respectively, which extend vertically through the stack of valve units 7 in laterally spaced relation.
  • the inlet end of the supply header 19 comprises a passage 21 through the bottom of the inlet manifold, and vertically registering supply passages 22 in the valve units or control sections 7, which are thus communicated with the inlet chamber 10 through the passage 21.
  • the lower end of the supply header is closed by the bottom manifold 6.
  • the outlet end of the exhaust header comprises a passage 23 through the top of the exhaust manifold 6, leading to its chamber 12, and vertically registering exhaust passages 24 in the valve units or control sections 7.
  • the upper end of the exhaust header has been shown extended upwardly into the top manifold 5 by means of a passage 25 in the latter, into which pressure fluid may flow from a relief valve 26 in the event the pressure of fluid in the inlet chamber 10 reaches an excessively high value.
  • the body of the control valve also has a substantially centrally located through passage 28, between the supply and exhaust headers and which may be of the conventional zig-zag type comprising a pair of adjacent upstream and downstream branches in each valve unit communicating 'with one another through the bore therein, and opening to the top and bottom of the valve section in registry with one of the branches of an adjacent valve section.
  • the upstream branch of the through passage in the top valve section 7 communicates with the outlet port 11 of the inlet manifold, and the downstream branch of the through passage in the bottom valve unit communi- 4 cates with the chamber 12 in the exhaust manifold through the port 13 thereof.
  • the supply header 19 communicates with a substantially U- shaped feeder passage 30 in each valve unit 7, through a check valve 31 which is caused to open in either operating position of the control spool 16, to allow fluid to flow through the feeder passage to the selected service passage.
  • the feeder passage has branches 32 that communicate with the bore 15 at opposite sides of the through passage 28, intermediate the through passage and the zones of communication between the bore and the service passages 17.
  • Each control section or valve unit 7 is also provided with a substantially inverted U-shaped return passage 33 which communicates with the exhaust header 20 and has opposite branches 34 which intersect the bore 15 outwardly of the service passages 17. Consequently when the control spool 16 is in its position seen in FIGURE 2, pressure fluid delivered to the inlet manifold 5 from a pump flows freely through the valve body to the exhaust manifold, and the control spool blocks communication between each service passage and both exhaust and feeder branches adjacent thereto. If the control spool is shifted in either direction from its neutral position seen, to an operating position at which one of its central lands blocks the through passage, it communicates one branch of the feeder passage 32 with the adjacent service passage and communicates the other service passage with the adjacent branch of the exhaust passage.
  • valve units 7 herein shown have been illustrated as of the parallel circuit type, it will be appreciated that for the purposes of this invention, they might also be of the series-parallel circuit type wherein the U-shaped feeder passage 32 of each valve unit is supplied with pressure fluid from the upstream branch of the through passage in the unit, rather than from a separate supply header 19. In that case the upstream branch of the through passage in each valve unit would have a lateral branch extending therefrom to the feeder passage 32, and the check valve 31 would be located in said lateral branch.
  • a flat machined face 36 formed on a pad 37 on the top of each of the sections of which the control valve is comprised, and a similar flat machined mating face 38 is formed on a pad 39 at the underside of each of the sections.
  • the pads may be omitted if the flat faces 36 and 38 cover the entire surfaces of the sections at their junctions.
  • the groove 41 defines the outer limit of a shallow sump-like depression or moat 42 in the face of the pad 39, which depression surrounds what might be termed an island 43 having part of the flat face 38 thereon for intimate mating engagement with the face 36 of the section therebeneath.
  • each of the passages that collectively define the through passage 28 and the supply header 19, open through either the flat faces 36 of the housing sections or their mating flat faces on the islands 43, in substantially close proximity to one another as best seen in FIGURE 4.
  • the lower ends of the supply header passages 21 and '22 open downwardly through the islands 43, alongside the lower branches of the through passage 28 in each section.
  • the upper ends of these same passages open through the faces 36 at the tops of the sections.
  • passages 23, 24 and 25 of which the exhaust header 20 is comprised communicate with the depression or moat 42 in the underside of each housing section.
  • the lower ends of passages 24 and 25 open directly through the bottoms of the moats, while the upper ends of the passages 23 and 24 open through the faces 36 at locations opposite the moat. Consequently, any two adjacent branches of the exhaust header will communicate with one another through the depression or moat 42.
  • the single O-ring seal 40 which surrounds the moat is never called upon to retain fluid at high pressure. This follows from the fact that the moat is at atmospheric or low pressure by reason of its connection with the exhaust header 20. Hence, the pressure of fluid in the moat can never exceed that which obtains in the reservoir of the system with which the valve is used.
  • the single low pressure O-ring seal is thus effectively able to preclude external leakage from the junction between adjacent housing sections, and it is of further significance that the O-ring seals lie within the circle of holes 45 provided for the bolts 8 by which the housing sections are held assembled.
  • a sectional control valve comprising a plurality of housing sections secured together in stacked relation to provide a valve bank having fluid inlet and exhaust ports, and wherein one or more of said sections comprise control sections having carryover passages therein which connect with one another at the junctions of the sections and provide high pressure fluid supply and low pressure fluid return passage means respectively communicating with the inlet and exhaust ports, each control section having service passage means for connection with a fluid motor and a movable valve element to control communication of its service passage means with its supply and return passage means, characterized by the following:
  • one of the sections at each of said junctions has a shallow depression in its face that extends outwardly from and surrounds the adjacent high pressure surface seal and zone to which the carryover passages open;
  • each of said low pressure seals comprises an O-ring confined in an annular groove in the face of one of the sections.
  • a valve unit for sectional control valves comprising:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valve Housings (AREA)
  • Fluid-Pressure Circuits (AREA)
US18390462 1962-03-30 1962-03-30 Sectional control valves Expired - Lifetime US3133559A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL123239D NL123239C (fr) 1962-03-30
NL290550D NL290550A (fr) 1962-03-30
BE630251D BE630251A (fr) 1962-03-30
US18390462 US3133559A (en) 1962-03-30 1962-03-30 Sectional control valves
GB2176962A GB980932A (en) 1962-03-30 1962-06-05 Improvements in or relating to fluid tight joints, particularly for sectional control valves
DEH46478A DE1149583B (de) 1962-03-30 1962-07-27 Steueraggregat fuer Hydrauliksystem, insbesondere mit einer Gruppe von einander eng benachbarten, zusammengeschalteten Einzelventilen
FR929613A FR1353251A (fr) 1962-03-30 1963-03-28 Distributeur de commande en sections et appareils analogues comportant des joints perfectionnés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18390462 US3133559A (en) 1962-03-30 1962-03-30 Sectional control valves

Publications (1)

Publication Number Publication Date
US3133559A true US3133559A (en) 1964-05-19

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ID=22674780

Family Applications (1)

Application Number Title Priority Date Filing Date
US18390462 Expired - Lifetime US3133559A (en) 1962-03-30 1962-03-30 Sectional control valves

Country Status (5)

Country Link
US (1) US3133559A (fr)
BE (1) BE630251A (fr)
DE (1) DE1149583B (fr)
GB (1) GB980932A (fr)
NL (2) NL290550A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228306A (en) * 1964-02-10 1966-01-11 Case Co J I Control valve
US3314443A (en) * 1963-11-08 1967-04-18 Flick Reedy Corp Valving structure
DE1475971B1 (de) * 1965-04-19 1970-07-02 Commercial Shearing Hydraulischer Steuerschieber
FR2180912A1 (fr) * 1972-04-18 1973-11-30 Sperry Rand Corp
US3901264A (en) * 1972-03-06 1975-08-26 Gresen Manufacturing Co Adjustable flow control for hydraulic valves having high pressure main supply and controls fluid flow to cylinder and exhaust ports
US4080872A (en) * 1975-04-16 1978-03-28 Seiji Shiokawa Boost valve device
US4121609A (en) * 1970-04-07 1978-10-24 Harold Gold Hydraulic speed governor
US4218884A (en) * 1978-11-08 1980-08-26 Harold Gold Hydraulic speed governor
US4430927A (en) * 1980-06-19 1984-02-14 Rubery Owen (Hydraulics) Limited Hydraulic valves
EP0752535A1 (fr) * 1994-03-15 1997-01-08 Komatsu Ltd. Distributeur de commande directionnelle
EP1177394A1 (fr) * 1999-03-16 2002-02-06 Shigemoto & Annett II, Inc. Ensemble modulaire de manipulation de fluides et unites modulaires de manipulation de fluides a double etancheite
CN112524294A (zh) * 2020-10-28 2021-03-19 武汉船用机械有限责任公司 分片式多路阀

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556708C2 (de) * 1975-12-17 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart Für die Blockbauweise vorgesehenes Hydrowegeventil
DE2943256A1 (de) * 1979-10-26 1981-05-07 Erwin Hengstler Hydraulik GmbH, 7613 Hausach Elektrohydraulische steuerung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US236519A (en) * 1881-01-11 Hamilton Mark K Receptable
US323404A (en) * 1885-08-04 Valve
US1389768A (en) * 1919-05-09 1921-09-06 Guyton And Cumfer Mfg Company Flanged coupling for double-pipe conduits
US1876627A (en) * 1932-09-13 Multiple pipe unit adaptable to the drilling and pumping arts
US1954454A (en) * 1929-11-23 1934-04-10 Asphalt Process Corp Fluid-tight juncture and method of packing same
US2384281A (en) * 1944-05-08 1945-09-04 Unit Rig & Equip Double port rotary seal
US2486087A (en) * 1943-07-29 1949-10-25 Galion Iron Works & Mfg Co Hydraulic valve
US2617445A (en) * 1948-10-28 1952-11-11 Bendix Aviat Corp Cam actuated selector valve
US2954051A (en) * 1958-10-27 1960-09-27 Cessna Aircraft Co Control valve for multiple valve banks
US2964022A (en) * 1957-07-11 1960-12-13 Joy Mfg Co Hydraulic control and system for a movable vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE65439C (de) * p. HUBER in Wattwil, Kanton St. Gallen, Schweiz Auslaufhahn ohne Stopfbüchse
DE36220C (de) * EUROPÄISCHE WASSER-GAS-AKTIEN-GesELLSCHAFT in Dortmund Sicherheitskanäle an Schiebern und Mehrweghähnen zur Verhütung der Mischung von Flüssigkeiten und Gasen
US2186657A (en) * 1938-03-22 1940-01-09 George E Saussure Valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US236519A (en) * 1881-01-11 Hamilton Mark K Receptable
US323404A (en) * 1885-08-04 Valve
US1876627A (en) * 1932-09-13 Multiple pipe unit adaptable to the drilling and pumping arts
US1389768A (en) * 1919-05-09 1921-09-06 Guyton And Cumfer Mfg Company Flanged coupling for double-pipe conduits
US1954454A (en) * 1929-11-23 1934-04-10 Asphalt Process Corp Fluid-tight juncture and method of packing same
US2486087A (en) * 1943-07-29 1949-10-25 Galion Iron Works & Mfg Co Hydraulic valve
US2384281A (en) * 1944-05-08 1945-09-04 Unit Rig & Equip Double port rotary seal
US2617445A (en) * 1948-10-28 1952-11-11 Bendix Aviat Corp Cam actuated selector valve
US2964022A (en) * 1957-07-11 1960-12-13 Joy Mfg Co Hydraulic control and system for a movable vehicle
US2954051A (en) * 1958-10-27 1960-09-27 Cessna Aircraft Co Control valve for multiple valve banks

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314443A (en) * 1963-11-08 1967-04-18 Flick Reedy Corp Valving structure
US3228306A (en) * 1964-02-10 1966-01-11 Case Co J I Control valve
DE1475971B1 (de) * 1965-04-19 1970-07-02 Commercial Shearing Hydraulischer Steuerschieber
US4121609A (en) * 1970-04-07 1978-10-24 Harold Gold Hydraulic speed governor
US3901264A (en) * 1972-03-06 1975-08-26 Gresen Manufacturing Co Adjustable flow control for hydraulic valves having high pressure main supply and controls fluid flow to cylinder and exhaust ports
FR2180912A1 (fr) * 1972-04-18 1973-11-30 Sperry Rand Corp
US4080872A (en) * 1975-04-16 1978-03-28 Seiji Shiokawa Boost valve device
US4218884A (en) * 1978-11-08 1980-08-26 Harold Gold Hydraulic speed governor
US4430927A (en) * 1980-06-19 1984-02-14 Rubery Owen (Hydraulics) Limited Hydraulic valves
EP0752535A1 (fr) * 1994-03-15 1997-01-08 Komatsu Ltd. Distributeur de commande directionnelle
EP0752535A4 (fr) * 1994-03-15 1999-06-16 Komatsu Mfg Co Ltd Distributeur de commande directionnelle
EP1177394A1 (fr) * 1999-03-16 2002-02-06 Shigemoto & Annett II, Inc. Ensemble modulaire de manipulation de fluides et unites modulaires de manipulation de fluides a double etancheite
EP1177394A4 (fr) * 1999-03-16 2004-08-11 Shigemoto & Annett Ii Inc Ensemble modulaire de manipulation de fluides et unites modulaires de manipulation de fluides a double etancheite
CN112524294A (zh) * 2020-10-28 2021-03-19 武汉船用机械有限责任公司 分片式多路阀
CN112524294B (zh) * 2020-10-28 2022-04-29 武汉船用机械有限责任公司 分片式多路阀

Also Published As

Publication number Publication date
BE630251A (fr) 1900-01-01
DE1149583B (de) 1963-05-30
NL290550A (fr) 1900-01-01
NL123239C (fr) 1900-01-01
GB980932A (en) 1965-01-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KOEHRING COMPANY 200 EXECUTIVE DRIVE, BROOFIELD, W

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KOEHRING COMPANY A WI CORP.;REEL/FRAME:003995/0514

Effective date: 19810505