US2127679A - Hydraulic control valve - Google Patents

Hydraulic control valve Download PDF

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Publication number
US2127679A
US2127679A US139370A US13937037A US2127679A US 2127679 A US2127679 A US 2127679A US 139370 A US139370 A US 139370A US 13937037 A US13937037 A US 13937037A US 2127679 A US2127679 A US 2127679A
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Prior art keywords
plug
port
hydraulic control
valve
control valve
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Expired - Lifetime
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US139370A
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Dudley Edward Clifford
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    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/905—Rotary valves for multiple gas burners
    • 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
    • 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
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86654—For plural lines
    • 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
    • Y10T137/86839—Four port reversing valves

Definitions

  • This invention relates generally to a hydraulic control valve and in particular relates to an improved hydraulic control valve, o-f the four-Way type, for use in connection with double acting hydraulic control cylinders as noW commonly used in connection with tractor drawn learth working and moving implements'such as carrier Scrapers, etc., the valve being interposed in the conduits between the constant pressure pump on the tractor and the control cylinder on the implements.
  • the principal object of the present invention is' to provide a novel porting arrangement in a four-Way control valve of the plug type.
  • the porting is so disposed that when the valve is in a central or neutral position, the high pressure oil from the pump will by-pass backto the oil reservoir onl the tractor and when the valve is turned in one direction or the other to feedv
  • Figure 1 is an elevation of my improved hydraulic control valve.
  • Figure 2 is a sectional elevation on line 2 2 Of Fig. ⁇ l.
  • Figure Se is a cross section takenv online 3 3 of Fig. 2, and illustrates the valve in a neutral or by-passing position.
  • Figure 4 is a similar Viewl but illustrating the valve in an operative position.
  • the device comprises a valve shell I bored from one end to receive a tapered plug 2; the plug when disposed in the bore terminating short of the bottom thereof to form a pocket as shown at' 3.
  • An axial stern I projects from the enlarged end of the plug 2 some distance beyond the adjacent end of the valve shell; a control handle H projecting radially from the outer end of the stem.
  • a head 5 is threaded into the initially open end of the shell and forms a journal for stem t.
  • the head 5 is provided with an enlarged bore 6 below its stem journaling portion and openV at its inner end and thus in communication with a chamber I formed between the'inner face of the head and adjacentend of plug 2.
  • An oil seal 8, of suitable type, is disposed about the stem and in the bottom of bore 6.
  • a compression spring 9 is disposed about the stem between the oil seal 8 and the adjacent end of plug 2; said spring normally being under compression and urging the plug into the tapered bore.
  • a washer I0 may be disposed between the oil seal and spring 'whereby to increase the compression of spring 9 for the purpose hereinafter described.
  • the shell I is provided with two oppositely disposed, radial ports indicated ,at I I and I2 respectively.
  • Another radial port I3 is disposed centrally between the ports II and I2 while a fourth port I@ is formed in the shell axially relative to the plug and communicates with the bottom of the tapered bore which forms pocket 3.
  • the tapped radial ports II and l2 are the supply ports from which the conduits (not shown) lead to the double acting hydraulic control cylinder; the radial port I3 is the by-pass port which is connected to the oil supply reservoir; and the axial port I@ is the high pressure feed port adapted to be connected to the pump.
  • the plug 2 is formed with an L-shaped passage I5 Which is open at one end to the small end of the plug and open at the other end through the side wall of the plug in the plane of the radial ports.
  • the plug is also formed with a pair of outwardly facing, opposed parallel grooves I6 and Il respectively cutA transversely therein; said grooves also being disposed in the plane of the radial ports and at right angles to the axis of ports I I and I2 when passage I5 and port I3 are in full register as shown inFig. 3.
  • a bleed opening I8 extends longitudinally through the plug to one side of passage l5; said bleed opening aiording communication between pocket 3. and chamber 1.
  • my improved hydraulic control valve is mounted in any. suitable manner on the tractor, and connected between the pump and double acting hydraulic control cylinder in the manner heretofore described.
  • Figure 4 of the drawing illustrates the position of the plug when oil is being supplied to portII and lay-passed from port I2. To control the operation of the double acting control cylinder, it is therefore only necessary to swing the handle H of the valve to one side or the other of its neutral or central position.
  • a hydraulic control valve including a shellP and a rotatable plug disposed therein, a radial by-pass port in the shell, a. pair of feed ports in the shell, the radial by-pass port being disposed centrally between said feed ports and in the same plane transversely of the valve, and an axial supply port in the shell, theplug having a passage therein extending from the end adjacent the axial supply port to an opening in the side of the plug in the same plane as said'by-pass port and feed ports, the plug also having a pair of transverse grooves cut in the face thereof in the plane of said opening and between which the opening is disposed; the portsin the shell and the opening and grooves in the plug being arranged so that when the plug opening is in register with the radial by-pass port, the feed ports will be closed, and when the plug is rotated a predetermined distance in one direction the plug opening will register with one feed port and one groove will establish communication between the other feed port and by-pass port.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

Aug. 1938. Ai.; c. DUDLEY 2,127,679 l HYDRAULIC CONTROLl VALVE Filed April 28, 1957 Jell/5f. 1 2
a 1 n my n 4 uw m 9 3 m A n Wl E D. m. f A l l n A N ff/ l. m.. H E WMWW W Q 7 m IIIIII f' Patented Aug. 23,1938
s-ra'rss einen HYDRAULIC coN'rRoL VALVE Edward Clifford Dudley, Fresno, Calif.
Application April 28, 1937, Serial No. 139,370
1 claim.4 (c1. 251-108) This invention relates generally to a hydraulic control valve and in particular relates to an improved hydraulic control valve, o-f the four-Way type, for use in connection with double acting hydraulic control cylinders as noW commonly used in connection with tractor drawn learth working and moving implements'such as carrier Scrapers, etc., the valve being interposed in the conduits between the constant pressure pump on the tractor and the control cylinder on the implements.
The principal object of the present invention is' to provide a novel porting arrangement in a four-Way control valve of the plug type. The porting is so disposed that when the valve is in a central or neutral position, the high pressure oil from the pump will by-pass backto the oil reservoir onl the tractor and when the valve is turned in one direction or the other to feedv These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claim.
In the drawing similar characters of reference indicate corresponding parts in the several views:
Figure 1 is an elevation of my improved hydraulic control valve.
Figure 2 is a sectional elevation on line 2 2 Of Fig.` l.
Figure Seis a cross section takenv online 3 3 of Fig. 2, and illustrates the valve in a neutral or by-passing position.
Figure 4 is a similar Viewl but illustrating the valve in an operative position.
Referring now more particularly to the characters of reference on the drawing, the device comprises a valve shell I bored from one end to receive a tapered plug 2; the plug when disposed in the bore terminating short of the bottom thereof to form a pocket as shown at' 3.- An axial stern I projects from the enlarged end of the plug 2 some distance beyond the adjacent end of the valve shell; a control handle H projecting radially from the outer end of the stem. A head 5 is threaded into the initially open end of the shell and forms a journal for stem t.
The head 5 is provided with an enlarged bore 6 below its stem journaling portion and openV at its inner end and thus in communication with a chamber I formed between the'inner face of the head and adjacentend of plug 2. An oil seal 8, of suitable type, is disposed about the stem and in the bottom of bore 6. A compression spring 9 is disposed about the stem between the oil seal 8 and the adjacent end of plug 2; said spring normally being under compression and urging the plug into the tapered bore. If desired, a washer I0 may be disposed between the oil seal and spring 'whereby to increase the compression of spring 9 for the purpose hereinafter described.
The shell I is provided with two oppositely disposed, radial ports indicated ,at I I and I2 respectively. Another radial port I3 is disposed centrally between the ports II and I2 while a fourth port I@ is formed in the shell axially relative to the plug and communicates with the bottom of the tapered bore which forms pocket 3. The tapped radial ports II and l2 are the supply ports from which the conduits (not shown) lead to the double acting hydraulic control cylinder; the radial port I3 is the by-pass port which is connected to the oil supply reservoir; and the axial port I@ is the high pressure feed port adapted to be connected to the pump.
The plug 2 is formed with an L-shaped passage I5 Which is open at one end to the small end of the plug and open at the other end through the side wall of the plug in the plane of the radial ports. The plug is also formed with a pair of outwardly facing, opposed parallel grooves I6 and Il respectively cutA transversely therein; said grooves also being disposed in the plane of the radial ports and at right angles to the axis of ports I I and I2 when passage I5 and port I3 are in full register as shown inFig. 3. A bleed opening I8 extends longitudinally through the plug to one side of passage l5; said bleed opening aiording communication between pocket 3. and chamber 1.
In use my improved hydraulic control valve is mounted in any. suitable manner on the tractor, and connected between the pump and double acting hydraulic control cylinder in the manner heretofore described.
When the valve is in a-neutral or central position as l.shown in Fig. 3, the L-shaped passage l5 in the plug is in register withradial port I3 and axial port Id thus allowing of unrestricted bypassing of oil from the constant pressure pump back to the reservoir. However when the plug is turned in one direction or the other a predetermined distance either radial port I I or I2 is placed in communication with the passage I5 thus feeding oil under pressure to one side of the double acting hydraulic control cylinder on the drawn implement. At the same time one of the grooves I6 or I'I will be brought into register between radial by-pass port I3 and the other radial supply port relieving the pressure on the other. side of the control cylinder. Figure 4 of the drawing illustrates the position of the plug when oil is being supplied to portII and lay-passed from port I2. To control the operation of the double acting control cylinder, it is therefore only necessary to swing the handle H of the valve to one side or the other of its neutral or central position.
From the foregoing description it will be readily seen that I have produced such a device as substantially fullls the objects of the invention as set forth herein. L
While this specification sets forth in detail the present and preferred construction o! the device, still in practice such deviations from such detail may be resorted to as do not yform a departure from the spirit of the invention, as dened by the appended claim.
Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:
In a hydraulic control valve including a shellP and a rotatable plug disposed therein, a radial by-pass port in the shell, a. pair of feed ports in the shell, the radial by-pass port being disposed centrally between said feed ports and in the same plane transversely of the valve, and an axial supply port in the shell, theplug having a passage therein extending from the end adjacent the axial supply port to an opening in the side of the plug in the same plane as said'by-pass port and feed ports, the plug also having a pair of transverse grooves cut in the face thereof in the plane of said opening and between which the opening is disposed; the portsin the shell and the opening and grooves in the plug being arranged so that when the plug opening is in register with the radial by-pass port, the feed ports will be closed, and when the plug is rotated a predetermined distance in one direction the plug opening will register with one feed port and one groove will establish communication between the other feed port and by-pass port. l
l 4 EDWARD CLIFFORD DUDLEY
US139370A 1937-04-28 1937-04-28 Hydraulic control valve Expired - Lifetime US2127679A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428512A (en) * 1943-05-29 1947-10-07 William G Brubacher Apparatus for making wallboards
US2435338A (en) * 1942-07-29 1948-02-03 United Aircraft Prod Oil control valve
US2492140A (en) * 1944-01-22 1949-12-27 Thompson Prod Inc Fluid flow control device
US2532003A (en) * 1945-10-03 1950-11-28 John M Wyer Means for use in applying, alternatively, air pressure and suction to a given point
US2580218A (en) * 1948-04-12 1951-12-25 Anderson Brass Co Shutoff cock
US2662722A (en) * 1951-01-30 1953-12-15 Sam F Graziano Fluid flow dual port control valve
US2732852A (en) * 1956-01-31 Control valve
US2781779A (en) * 1952-01-26 1957-02-19 W J Schoenberger Co Gas range burner control
US2814309A (en) * 1955-03-23 1957-11-26 Jr Simon W Koenig Hydraulic control valve
US2898937A (en) * 1955-02-23 1959-08-11 Miehle Goss Dexter Inc Rotary valve structure
US3014460A (en) * 1959-03-23 1961-12-26 Glenn T Randol Pneumatically-actuated booster for vehicular steering systems
US3096788A (en) * 1961-08-21 1963-07-09 William Y Talbot Rotary valve
US3202183A (en) * 1963-07-08 1965-08-24 Skil Corp Control valve
US3330296A (en) * 1964-06-11 1967-07-11 Westinghouse Air Brake Co Angle cock having removable valve unit
US3636979A (en) * 1969-11-24 1972-01-25 Queensboro Marine Equipment Lt Hydraulic valve
US3918493A (en) * 1972-03-01 1975-11-11 John D Tobias Valve construction
US4318424A (en) * 1977-11-18 1982-03-09 Peter Bajka Three port two-way diverter valve with integral drain on one output port
US4595034A (en) * 1984-07-05 1986-06-17 Hutson Roy C Three-position, four-way, short-stroke rotary valve
US20100000619A1 (en) * 2008-07-01 2010-01-07 David Bryan Larson Slurry valve
US20210101188A1 (en) * 2019-10-03 2021-04-08 Flowtrend, Inc. Full-flow sanitary valve
US20220186847A1 (en) * 2020-12-10 2022-06-16 Röchling Automotive SE & Co. KG Injection molded plastic valve assembly for a motor vehicle
EP3899329A4 (en) * 2018-12-19 2022-09-14 Robertshaw Controls Company Multi-port multi-plane valve
US11592115B2 (en) * 2018-11-22 2023-02-28 Rosemount Aerospace Inc. Fluid valve

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732852A (en) * 1956-01-31 Control valve
US2435338A (en) * 1942-07-29 1948-02-03 United Aircraft Prod Oil control valve
US2428512A (en) * 1943-05-29 1947-10-07 William G Brubacher Apparatus for making wallboards
US2492140A (en) * 1944-01-22 1949-12-27 Thompson Prod Inc Fluid flow control device
US2532003A (en) * 1945-10-03 1950-11-28 John M Wyer Means for use in applying, alternatively, air pressure and suction to a given point
US2580218A (en) * 1948-04-12 1951-12-25 Anderson Brass Co Shutoff cock
US2662722A (en) * 1951-01-30 1953-12-15 Sam F Graziano Fluid flow dual port control valve
US2781779A (en) * 1952-01-26 1957-02-19 W J Schoenberger Co Gas range burner control
US2898937A (en) * 1955-02-23 1959-08-11 Miehle Goss Dexter Inc Rotary valve structure
US2814309A (en) * 1955-03-23 1957-11-26 Jr Simon W Koenig Hydraulic control valve
US3014460A (en) * 1959-03-23 1961-12-26 Glenn T Randol Pneumatically-actuated booster for vehicular steering systems
US3096788A (en) * 1961-08-21 1963-07-09 William Y Talbot Rotary valve
US3202183A (en) * 1963-07-08 1965-08-24 Skil Corp Control valve
US3330296A (en) * 1964-06-11 1967-07-11 Westinghouse Air Brake Co Angle cock having removable valve unit
US3636979A (en) * 1969-11-24 1972-01-25 Queensboro Marine Equipment Lt Hydraulic valve
US3918493A (en) * 1972-03-01 1975-11-11 John D Tobias Valve construction
US4318424A (en) * 1977-11-18 1982-03-09 Peter Bajka Three port two-way diverter valve with integral drain on one output port
US4595034A (en) * 1984-07-05 1986-06-17 Hutson Roy C Three-position, four-way, short-stroke rotary valve
US20100000619A1 (en) * 2008-07-01 2010-01-07 David Bryan Larson Slurry valve
US11592115B2 (en) * 2018-11-22 2023-02-28 Rosemount Aerospace Inc. Fluid valve
EP3899329A4 (en) * 2018-12-19 2022-09-14 Robertshaw Controls Company Multi-port multi-plane valve
US11655906B2 (en) 2018-12-19 2023-05-23 Robertshaw Controls Company Multi-port multi-plane valve
US20210101188A1 (en) * 2019-10-03 2021-04-08 Flowtrend, Inc. Full-flow sanitary valve
US20220186847A1 (en) * 2020-12-10 2022-06-16 Röchling Automotive SE & Co. KG Injection molded plastic valve assembly for a motor vehicle

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