US3429341A - Control slide valve - Google Patents

Control slide valve Download PDF

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Publication number
US3429341A
US3429341A US3429341DA US3429341A US 3429341 A US3429341 A US 3429341A US 3429341D A US3429341D A US 3429341DA US 3429341 A US3429341 A US 3429341A
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US
United States
Prior art keywords
control
port
control piston
slide valve
casing
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
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English (en)
Inventor
Herbert Sochting
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.)
Hoerbiger Ventilwerke GmbH and Co KG
Original Assignee
Hoerbiger Ventilwerke GmbH and Co KG
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
Application filed by Hoerbiger Ventilwerke GmbH and Co KG filed Critical Hoerbiger Ventilwerke GmbH and Co KG
Application granted granted Critical
Publication of US3429341A publication Critical patent/US3429341A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • 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
    • 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
    • Y10T137/86702—With internal flow passage

Definitions

  • the invention relates to a control slide valve for pneumatic and/ or hydraulic installations with a casing which is provided with port means for the pressure transfer medium, and with a control piston sealed off by packing rings which is slidable in the casing between two end positions, which control piston, in its two end positions brings one used port each into communication with the supply port and in its middle position between the two end positions, in which middle position it is preferably lockable, shuts oit both ports against the supply port and exhausts them.
  • Control slide valves of this type so called four-way slide valves, are already known which are employed for a wide range of control purposes, for example, for the alternate actuation of two working cylinders or of double action working cylinders.
  • the known embodiments are provided with a supply port connected with a source of a pressure transfer medium, two ports leading to the working cylinders and exhaust ports co-related with these, which either lead into the atmosphere or into a collecting container for the pressure transfer medium having a low pressure level.
  • the supply port In each end position of the control piston, one of the two working cylinders is charged with the pressure transfer medium and the other working cylinder is exhausted or releived of pressure, whereas in the middle position of the control piston, the supply port is closed and both working cylinders remain in their position of rest.
  • the object of the invention is to improve the known control slide Valves of this type in such a manner that, when their control piston is in the middle position and when their ports are exhausted, an additional control function can be carried out.
  • this problem is presented in the case of the control of locomotives, cranes and the like when, with the control of the driving operation, a braking device is to be actuated simultaneously.
  • this problem is solved by the provision of an additional control port which, when the control piston is in its middle position is in communication with the supply port via a passage located in the control piston but when the control piston is in either of its two end positions, is connected to exhaust.
  • the additional control port may be arranged in the casing of the control slide valve in a like manner as the other ports, in which case communication between the supply port and the additional control port is eliected through a passage provided in the control piston.
  • the additional control port is provided at one end of the control piston and in it, the co-related passages in the control piston consisting of an axial passage and several radial passages leading outwards from the former.
  • control slide valve When the control piston is in its middle position, the radial passages are located in the plane of the supply port communicating with the source of pressure transfer agent, and thus, in each end position of the control piston, they enter into communication with the exhaust port.
  • the design of the control slide valve in accordance with the invention is considerably simplified in this embodiment as compared with control slide valves hitherto known.
  • the additional control port may be provided in a transition piece, located between the end of the casing and the cover closing it.
  • the distances between the various connections in the casing, and the dimensioning of the sub-division of the various spaces separated by packing rings and being in communication with the ports must be appropriately selected.
  • a casing results having ports located at different distances.
  • the distance in axial direction between the two packing rings sealing off the supply port may be smaller than the distance in axial direction between the other packing rings.
  • FIGS. 1 and 2 each illustrate one control valve in accordance with the invention in a longitudinal vertical section taken on the axis.
  • the control slide valve consists of a casing 1 with a control piston 2 displaceable in axial direction in a cylindrical passage of the casing which piston is sealed against the casing by means of packing rings 3 which are maintained at proper distances from each other by means of distance pieces 4 arranged between them.
  • l'he cylindrical passage t'hrough casing 1 is closed at both ends by means of covers 5 and 6 in which the control piston 2 is guided by suitable bearing surfaces.
  • An actuating lever handle 7 is pivotally attached to one end of the control piston 2 and into the other end a head 8 is screwed, which is provided with recesses or a peripheral groove 9 which are adapted to receive the locking spheres 10'.
  • the spheres 10 are pressed inwards by the helical springs 11 contained in nipples 12 which are screwed into the cover 5.
  • the casing 1 corresponds in its design to that of a conventional four-way valve slide and is provided with iive ports, namely a supply port 13 through which a pneumatic or hydraulic pressure transfer medium is supplied from the source of pressure transfer medium, two user ports 14 and 15 leading to the users to be controlled, and two exhaust ports 16 and 17 which can discharge into the atmosphere or can lead via conduits connected therewith to a container for a pressure transfer medi-um.
  • iive ports namely a supply port 13 through which a pneumatic or hydraulic pressure transfer medium is supplied from the source of pressure transfer medium, two user ports 14 and 15 leading to the users to be controlled, and two exhaust ports 16 and 17 which can discharge into the atmosphere or can lead via conduits connected therewith to a container for a pressure transfer medi-um.
  • Cornmunication between the Various ports is effected by means of the control piston 2 which, to this end, is provided with two constrictions 18 and 19.
  • a control port is provided additional to the ports already mentioned, which in the middle position of the control piston 2 is in communication with the supply port 13 via a passage 201 provided in the control piston 2, whilst in the two end positions of the control piston 2, the additional control port is in communication with one of the two exhaust ports 16 or 17.
  • the passage 20 consists of an axial cylindrical passage provided in the control piston from which radial passages 21 extend outwards, which when the control piston 2 is in its middle position are located in the plane of the supply port 13, and which when moving the control piston 2 into its end positions slide past the packing rings 3 which are located on both sides of the supply port 13, whereby they enter into com munication via corresponding constrictions 18 or 19 with one of the exhausting ports 16 or 17.
  • the additional control port 22 is provided in the head 8 inserted into the end face of the control piston 2 and is in communication via passage 23 in the head 8 with an axial passage 20.
  • Communication between the passage 2()y in the control piston 2 and the control port 24 is in this case eifected via a number of radial passages 27 which are provided in the control piston 2 in the region of the control port 24.
  • T he distance between the packing rings 3l and 26 located on both sides of the control port 24 is designed so long in the axial direction of the control piston 2 that the radial passages 27 remain in port with the control connection 24 over the entire range of the stroke of the control piston 2.
  • the head 8 is attached to the end of the control piston 2 by means of a screw 28 which, at the same time, closes loff the passage 20 against the outer atmosphere.
  • control slide valves illustrated and described are, for example, suitable for the control of the driving operations of locomotives, in which case simultaneously with the setting of a direction of travel the air pressure brake is released.
  • the switching on and off as well las the reversal from forward drive to rearward drive and vice versa are effected via the ports 14 and 15, whereas the air pressure brake to be actuated at the same time is in communication with the additional control ports 22 or 24.
  • the pressure transfer medium employed for control for example, compressed air
  • the brake is automatically released by the control slide valve. This is eiected by moving the control piston 2, for example, into the end position shown in FIG. 2, so that the radial passages 21 slide past the packing ring 3 located on one side of the supply port 13 and come into communication with the exhausting ports 17 by way of the constriction 19, thereby also exhaust the brake conduit which is connected with the additional control port 22 or 24.
  • control slide valve the additional control port may also be provided directly in the casing of the control slide valve in which case, however, for the constriction of the control slide valve a separate casing is essential, and the casing of a conventional four-way control valve cannot be employed.
  • a control slide valve for pneumatic and hydraulic installations comprising a casing which is provided with a supply port, motor ports, and exhaust ports for the pressure transfer medium, and a control piston sealed olf by packing rings which is slidable in the casing between two end positions, which control piston is either of its two end positions connects one motor port each with the supply port and in its middle position, between the two end positions, shuts off both motor ports and exhausts them, a passage being provided in the control piston forming an additional control port which, when the control piston is in its middle position, is in communication with the supply port but in the two end positions of the control piston is, on the other hand, connected to exhaust.
  • control slide valve as claimed in claim l, wherein the additional control port is provided at and in one end of the control piston, the appropriate passage in the control piston consisting of an axial cylindrical passage and several radial passages leading outwards from the axial 10 passage.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Multiple-Way Valves (AREA)
US3429341D 1965-05-07 1966-05-03 Control slide valve Expired - Lifetime US3429341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT417365A AT253887B (de) 1965-05-07 1965-05-07 Steuerschieber für pneumatische und hydraulische Anlagen

Publications (1)

Publication Number Publication Date
US3429341A true US3429341A (en) 1969-02-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US3429341D Expired - Lifetime US3429341A (en) 1965-05-07 1966-05-03 Control slide valve

Country Status (2)

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US (1) US3429341A (de)
AT (1) AT253887B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516445A (en) * 1968-02-07 1970-06-23 Plessey Co Ltd Hydraulic actuating systems
US3648733A (en) * 1970-01-22 1972-03-14 Spencer Hydraulic Inc Spool valve having adjustable seals
US3853137A (en) * 1972-07-17 1974-12-10 Holliburton Co System for remotely constructing underground structures
DE2448383A1 (de) * 1973-11-08 1975-05-22 Kysor Industrial Corp Temperaturgesteuertes ventil
US4643228A (en) * 1984-03-02 1987-02-17 Sigma Enterprises, Inc. Convertible high or low pressure pilot valve
WO2002063191A1 (de) * 2001-02-08 2002-08-15 Cooper Cameron Corporation Ventilanordnung
US20050029476A1 (en) * 2000-05-11 2005-02-10 Cooper Cameron Corporation Electric control and supply system
US20110309281A1 (en) * 2009-02-09 2011-12-22 Schaeffler Technologies Gmbh & Co. Kg Control valves for controlling pressure medium flows
CN102853116A (zh) * 2012-09-25 2013-01-02 四川制动科技股份有限公司 一种推拉式压力控制阀
US8492927B2 (en) 2001-09-19 2013-07-23 Cameron International Corporation Universal power supply system
CN112212032A (zh) * 2020-08-25 2021-01-12 武汉船用机械有限责任公司 多路阀

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383378A1 (fr) * 1977-03-09 1978-10-06 Outillage Air Comprime Distributeur de fluide
DE2813030A1 (de) * 1978-03-23 1979-09-27 Herion Werke Kg Wegeventil
DE2941583A1 (de) * 1979-10-13 1981-04-30 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim Mehrwegsteuerventil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179854A (en) * 1921-06-30 1922-05-18 John Walter Flower Improved valve
GB495422A (en) * 1936-05-15 1938-11-14 Sullivan Machinery Co Improvements relating to hydraulic control valves
US2547254A (en) * 1944-07-05 1951-04-03 George E Failing Supply Compan Valve
US2577999A (en) * 1945-12-15 1951-12-11 Niels A Christensen Reversing valve
US2645450A (en) * 1948-11-26 1953-07-14 C B Hunt & Son Inc Fluid valve means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179854A (en) * 1921-06-30 1922-05-18 John Walter Flower Improved valve
GB495422A (en) * 1936-05-15 1938-11-14 Sullivan Machinery Co Improvements relating to hydraulic control valves
US2547254A (en) * 1944-07-05 1951-04-03 George E Failing Supply Compan Valve
US2577999A (en) * 1945-12-15 1951-12-11 Niels A Christensen Reversing valve
US2645450A (en) * 1948-11-26 1953-07-14 C B Hunt & Son Inc Fluid valve means

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516445A (en) * 1968-02-07 1970-06-23 Plessey Co Ltd Hydraulic actuating systems
US3648733A (en) * 1970-01-22 1972-03-14 Spencer Hydraulic Inc Spool valve having adjustable seals
US3853137A (en) * 1972-07-17 1974-12-10 Holliburton Co System for remotely constructing underground structures
DE2448383A1 (de) * 1973-11-08 1975-05-22 Kysor Industrial Corp Temperaturgesteuertes ventil
US4643228A (en) * 1984-03-02 1987-02-17 Sigma Enterprises, Inc. Convertible high or low pressure pilot valve
US7615893B2 (en) 2000-05-11 2009-11-10 Cameron International Corporation Electric control and supply system
US20050029476A1 (en) * 2000-05-11 2005-02-10 Cooper Cameron Corporation Electric control and supply system
GB2389165B (en) * 2001-02-08 2004-11-10 Cooper Cameron Corp Valve system
US20040074544A1 (en) * 2001-02-08 2004-04-22 Klause Biester Valve system
GB2389165A (en) * 2001-02-08 2003-12-03 Cooper Cameron Corp Valve system
US7048004B2 (en) 2001-02-08 2006-05-23 Cooper Cameron Corporation Valve system
WO2002063191A1 (de) * 2001-02-08 2002-08-15 Cooper Cameron Corporation Ventilanordnung
US8492927B2 (en) 2001-09-19 2013-07-23 Cameron International Corporation Universal power supply system
US20110309281A1 (en) * 2009-02-09 2011-12-22 Schaeffler Technologies Gmbh & Co. Kg Control valves for controlling pressure medium flows
US8839820B2 (en) * 2009-02-09 2014-09-23 Schaeffler Technologies AG & Co. KG Control valves for controlling pressure medium flows
CN102853116A (zh) * 2012-09-25 2013-01-02 四川制动科技股份有限公司 一种推拉式压力控制阀
CN112212032A (zh) * 2020-08-25 2021-01-12 武汉船用机械有限责任公司 多路阀
CN112212032B (zh) * 2020-08-25 2022-10-04 武汉船用机械有限责任公司 多路阀

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Publication number Publication date
AT253887B (de) 1967-04-25

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