US3561489A - Hydraulically or pneumatically controllable slide valve arrangement - Google Patents

Hydraulically or pneumatically controllable slide valve arrangement Download PDF

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Publication number
US3561489A
US3561489A US782936A US3561489DA US3561489A US 3561489 A US3561489 A US 3561489A US 782936 A US782936 A US 782936A US 3561489D A US3561489D A US 3561489DA US 3561489 A US3561489 A US 3561489A
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US
United States
Prior art keywords
displacement piston
sleeve valve
sectional area
piston member
fluid
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
US782936A
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English (en)
Inventor
Eduard Furrer
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.)
Rheinmetall Air Defence AG
Rheinmetall Industrie AG
Original Assignee
Oerlikon Contraves AG
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 Oerlikon Contraves AG filed Critical Oerlikon Contraves AG
Application granted granted Critical
Publication of US3561489A publication Critical patent/US3561489A/en
Anticipated expiration legal-status Critical
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
    • B65G2814/03—Loading or unloading means
    • B65G2814/0301—General arrangements
    • B65G2814/0314—General arrangements for moving bulk material downwards
    • B65G2814/0316—General arrangements for moving bulk material downwards to a storage room
    • 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
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86606—Common to plural valve motor chambers
    • 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
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

Definitions

  • fluid operated control circuit means Fleld of Search l for continually a predetermined control pressure of a 625-64, 625-66 fluid medium to the displacement piston member possessing 56 the smaller effective cross-sectional area and for alternately 1 Reerences cued applying the control pressure of the fluid medium of the con- UNITED STATES PATENTS trol circuit means and a considerably smaller pressure to the 3,016,065 1/1962 Stampfli l37/625.64 other displacement piston member possessing the larger efiec- 3,219,060 1 1/1965 Pearl et al 137/625 .66X tive cross-sectional area.
  • the invention relates to a new and improved fluid-operated, especially hydraulically or pneumatically controllable slide valve arrangement for alternately operably communicating an outflow conduit with a pressure conduit and return flow conduit of fluid-operating system.
  • Another, more specific object of the invention relates to an improved hydraulically or pneumatically controllable slide valve arrangement which is relatively simple in construction, economical to manufacture, not readily subject to breakdown, extremely reliable in operation, and requires a minimum of maintenance and servicing.
  • the inventive slide valve arrangement is generally manifested by the features that a respective displacement piston member acts upon each end face of a sleeve valve or piston member of the slide valve arrangement, the displacement piston members extending substantially coaxially with respect to such sleeve valve. Furthermore, the effective crosssectional area of these displacement piston members differ from one another, the displacement piston member having the smaller effective cross-sectional area being continually impacted by a predetermined pressure of a hydraulic or pneumatic control circuit means, whereas the pressure of such control circuit means and a considerably smaller pressure alternately acts upon the other displacement piston member having the larger efiective cross'sectional area.
  • FIG. I is a schematic longitudinal sectional view of a firs embodiment of the inventive slide valve arrangement
  • FIG. 2 is a sectional view showing details of the sleeve valve or piston member used in the slide valve arrangement of FIG.
  • FIG. 3 illustrates is schematic longitudinal sectional view, as viewed substantially along the lines I-I of FIG. 4, a second embodiment of inventive slide valve arrangement constructed as a two-stage slide valve unit;
  • FIG. 4 is a fragmentary cross-sectional view of the two-stage slide valve unit of FIG. 3, viewed substantially along the line II-II thereof.
  • FIG. 1 the exemplary embodiment of inventive slide valve arrangement depicted in FIG. 1 encompasses a slide valve housing I which contains a longitudinally extending main bore or compartment which slidably receives therein'a sleeve valve or slide valve piston member 4.
  • This slide valve housing 1 is further provided with an annular groove II, additionally a return flow conduit or, connection R12, an outflow conduit or connection A13 and a pressure conduit or connection P14.
  • a cover member 2 and 3 respectively, equipped with the bores or channels 20, 21, and 30, 31 respectively.
  • the bores and 30 are different in cross-sectional area from one another and serve as guide means for the displacement piston members 22 and 32, respectively, which also differ in their effective crosssectional area from one another.
  • These displacement piston members act upon the end faces of the sleeve valve 4, as will be explained shortly.
  • sleeve valve 4 possesses two annular grooves 41 and 42 provided at respective regions of the body of the sleeve valve which are reduced in cross section as shown. Furthermore, sleeve valve 4 is internally provided with a longitudinally extending bore or channel 40 having the widened or enlarged bore portions 44 at each end thereof. Moreover, an operation or through passage opening 43 provided at the body of the sleeve valve 4 communicates the axially extending internal bore or channel 40 with the annular groove 41. A respective square member 45, or equivalent structure, is inserted in each widened or enlarged bore portion 44 of the axially extending bore 40. Each associated displacement piston member 22 and 32, respectively, acts upon the corresponding oppositely situated square member 45. I
  • the aforedescribed slide valve arrangement can be conveniently actuated by a fluid-operated system, in particular a hydraulic or pneumatic system which embodies a conventional pump D, the pressure line P and the return flow line R, as well as a standard reversing valve unit S.
  • This reversing valve unit S serves to selectively operatively communicate the displacement piston member 22 having the larger effective cross-sectional area either with the pressure line P or with the return flow line R.
  • the other displacement piston member 32 is, similar to the pressure conduit or connection P14, coupled with the pressure line P.
  • the sleeve valve 4 can be controlled by means of a further sleeve valve or slide valve piston member 5 mounted directly in the slide: valve housing I and, in turn, controlled pneumatically or hydraulically.
  • this control sleeve valve or piston member 5 possessing the annular grooves 51 and 5.2 at the reduced body portions of such sleeve valve, is located in a lengthwise extending bore 50 equipped with the widened chambers or compartments l6 and 17 at each end. Each such widened compartment l6 and 17 is sealed by an associated membrane or diaphragm I20 and 130, respectively.
  • the slide valve housing I is provided with the control connections or ports 24 and 34, as best shown in FIGI3, whereby it is possible to deform the associated membranes I20 and I30, respective ly, by means of a pneumatic or hydraulic fluid medium in such a way that the control sleeve valve 5 can be reciprocated to and fro. 1
  • the main bore I0 is enlarged by the annular grooves I41 and 142, as shown.
  • the sleeve valve or piston member 4 is provided with a noncontinuous axial bore 430, in other words, a bore which is open at one end, and in which there is situated the displacement piston member 432.
  • Displacement piston member 432 continuously remains in operable communication with the pressure conduit or connection P14 through the agency of the annular grooves 42 and 142 as well as the opening or through passage port 446.
  • the channel 502 which communicates with the pressure conduit P14, is operatively connected via the annular groove 52 in flow relationship with the channel 501 which, in turn, communicates with the displacement piston member 22 possessing the larger effective cross-sectional area.
  • the sleeve valve 4 is thus retained in the illustrated position.
  • the outflow connection or conduit A13 is flow connected via the annular grooves 41 and 141 with the return flow conduit R12.
  • control sleeve valve 5 is pneumatically or hydraulically displaced toward the right, then the channels 501 and 502 are cutoff from one another, and the channel 501 is operatively connected with the return flow conduit R12 through the agency of the return flow channel 503 and the annular groove 51.
  • the relieved displacement piston member 22 is pushed back, by the sleeve valve 4 within its associated bore 20 until it moves towards the left and comes into contact with the slide valve housing, and the sleeve valve 4 has been moved by the forces produced in the axial bore 430 through the action of the pressure of the fluid medium prevailing in the pressure line P.
  • the output connection or conduit A13 is separated or cut off from the return flow conduit R12 and is coupled or communicated in the annular grooves 11, 42 and 142 with the pressure conduit P14.
  • the slide valve arrangement thus always remains operational.
  • the channel means 18 communicate both of the enlarged compartments or chambers 16 and 17 with one another and towards the outside, therefore render possible, even during escape of leakage fluid medium in the enlarged widened compartments 16 and 17, a distrubance-free functioning of the membranes or diaphragms 120 and 130, respectively.
  • a fluid-operated, in particular hydraulically or pneumatically controllable slide valve arrangement for alternately communicating in flow relationship an outflow conduit with a pressure conduit and return flow conduit of a fluid-operating system, comprising a slide valve housing provided with an outflow conduit, a pressure conduit and a return flow conduit, a sleeve valve member having opposed end faces, a respective coaxially extending displacement piston member acting upon each end face of said sleeve valve member, the effective crosssectional area of both of said displacement piston members differing from one another and being considerably smaller than the cross-sectional area of said sleeve valve member, fluid-operated control circuit means for continually applying a predetermined control pressure of a fluid medium to said displacement piston member possessing the smaller effective cross-sectional area and for alternately selectively applying the control pressure of the fluid medium of said control circuit means and a considerably smaller pressure to the other displacement piston member possessing the larger effective cross-sectional area.
  • a fluid-operated, in particular hydraulically or pneumatically controllable slide valve arrangement for alternately communicating in flow relationship an outflow conduit with a pressure conduit and return flow conduit of a fluid-operating system, comprising a slide valve housing provided with an outflow conduit, a pressure conduit and a return flow conduit, a sleeve valve member having opposed end faces, a respective coaxially extending displacement piston member acting upon each end face of said sleeve valve member, the effective crosssectional area of both of said displacement piston members differing from one another, fluid-operated control circuit means for continually applying a predetermined control pressure of a fluid medium to said displacement piston member possessing the smaller effective cross-sectional area and for alternately selectively applying the control pressure of the fluid medium of said control.
  • said slide valve housing incorporating cover means, said sleeve valve member having a bore, said displacement piston member possessing the smaller effective cross-sectional area and continually subjected to said control pressure being disposed in said bore and being impacted by said control pressure in the same direction as said displacement piston member possessing the larger effective cross-sectional area, said displacement piston member of smaller cross-sectional area bearing against said cover means, said sleeve valve member pushing against said displacement piston member possessing the smaller effective cross-sectional area as soon as the other displacement piston member of larger cross-sectional area is no longer subjected to the action of the control pressure.
  • a fluid-operated, in particular hydraulically or pneumatically controllable slide valve arrangement for alternately communicating in flow relationship an outflow conduit with a pressure conduit and return flow conduit of a fluid-operating system, comprising a slide valve housing provided with an outflow conduit, a pressure conduit and a return flow conduit, a sleeve valve member having opposed end faces, a respective coaxially extending displacement piston member acting upon each end face of said sleeve member, the effective cross-sectional area of both of said displacement piston members differing from one another, fluid-operated control circuit means for continually applying a predetermined control pressure of a fluid medium to said displacement piston member possessing the smaller effective cross-sectional area and for alternately selectively applying the control pressure of the fluid medium of said control circuit means and a considerably smaller pressure to the other displacement piston member possessing the larger effective cross-sectional area, an additional sleeve valve constructed as a slide valve provided at said slide valve housing, said additional sleeve valve serving for alternately operatively connecting said sleeve
  • a fluid-operated, in particular hydraulically or pneumatically controllable slide valve arrangement for alternately communicati'ng in flow relationship an outflow conduit with a pressure conduit and return flow conduit of a fluid-operating system, comprising a slide valve housing provided with an outflow conduit, a pressure conduit and a return flow conduit, a sleeve valve member having opposed end faces, a respective coaxially extending displacement piston member acting upon each end face of said sleeve valve member, the effective crosssectional area of both of said displacement piston members differing from one another, fluid-operated control circuit means for continually applying a predetermined control pressure of a fluid medium to said displacement piston member possessing the smaller effective cross-sectional area and for alternately selectively applying the control pressure of the fluid medium of said control circuit means and a considerably smaller pressure to the other displacement piston member possessing the larger effective cross-sectional area.
  • an additional sleeve valve constructed as a slide valve provided at said slide valve housing, said additional sleeve valve serving for alternately operatively connecting said sleeve valve member with the pressure conduit of the fluid-operating system and for disconnecting therefrom, said additional sleeve valve having opposite situated end faces, a respective membrane cooperating with each end face of said additional sleeve valve for reciprocating the latter to and fro each of said membranes possessing an external face, respective control connection means neighboring said external face of each associated membrane and capable of being alternately subjected to an overpressure through the action of pneumatic or hydraulic control elements, said slide valve housing incorporating cover means, said sleeve valve member having a bore, said displacement piston member possessing the smaller effective cross-sectional area and continually subjected to said control pressure being disposed in said bore and being impacted by said control pressure in the same direction as said displacement piston member possessing the larger effective cross-sectional area, said displacement piston member of smaller cross-sectional area bearing against said cover means, said slee

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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)
  • Fluid-Driven Valves (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US782936A 1967-12-22 1968-12-11 Hydraulically or pneumatically controllable slide valve arrangement Expired - Lifetime US3561489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1813267A CH469215A (de) 1967-12-22 1967-12-22 Hydraulisch oder pneumatisch steuerbares Schieberventil

Publications (1)

Publication Number Publication Date
US3561489A true US3561489A (en) 1971-02-09

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Application Number Title Priority Date Filing Date
US782936A Expired - Lifetime US3561489A (en) 1967-12-22 1968-12-11 Hydraulically or pneumatically controllable slide valve arrangement

Country Status (6)

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US (1) US3561489A (de)
JP (1) JPS503014B1 (de)
CH (1) CH469215A (de)
DE (2) DE6801536U (de)
FR (1) FR1593087A (de)
GB (1) GB1193028A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949645A (en) * 1973-07-03 1976-04-13 Messier Hispano Distributing unit for a dual action hydraulic electro-distributor
US4114650A (en) * 1976-10-06 1978-09-19 Gordon Carroll G Valve structure
US20040035805A1 (en) * 2002-08-21 2004-02-26 Hansen Dennis B. Method and apparatus for flushing contaminants from a container of fluids
US7510662B1 (en) 2002-08-21 2009-03-31 Hansen Dennis B Method and apparatus for flushing contaminants from a container of fluids
US20090294709A1 (en) * 2008-06-02 2009-12-03 Stretch Dale A Two step valve actuator
US20100243927A1 (en) * 2009-03-26 2010-09-30 Abb Technology Ag Valve arrangement
WO2011154056A1 (de) * 2010-06-11 2011-12-15 Bühler AG Ventilanordnung
US8281897B1 (en) * 2010-02-02 2012-10-09 Trendsetter Engineering, Inc. Automatic accumulator switching apparatus and system
CN103967754A (zh) * 2014-05-14 2014-08-06 干平 节能进气阀
WO2014008880A3 (de) * 2012-07-07 2015-03-26 Bernt Westarp Leitungssystem zum transport von flüssigkeiten
CN107605551A (zh) * 2017-09-20 2018-01-19 中国船舶重工集团公司第七0三研究所 一种滑油压力屏蔽装置
US20180051814A1 (en) * 2016-08-16 2018-02-22 Hamilton Sundstrand Corporation Servovalve
WO2018080960A1 (en) 2016-10-26 2018-05-03 3M Innovative Properties Company Reversing valve and household water purifier including same technical field

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58124216A (ja) * 1982-01-21 1983-07-23 Toshiba Corp 分割型変圧器の組立方法
JPS59210622A (ja) * 1983-05-16 1984-11-29 Toshiba Corp 分割形変圧器
FR2648888B1 (fr) * 1989-06-23 1991-09-27 Euromat Ets Henrion Sa Perfectionnements aux dispositifs distributeurs de fluide sous pression
DE9103543U1 (de) * 1991-03-22 1992-07-23 J. D. Neuhaus Hebezeuge GmbH & Co, 5810 Witten Ventil zur Begrenzung der anhebbaren Last an einem Hebezeug
DE19732042C1 (de) * 1997-07-25 1999-06-10 Wilfried Wiegers Vorrichtung zur Befüllung einer Flüssigkeitskammer eines Flüssigkeitsabgabegerätes
JP2014201983A (ja) * 2013-04-05 2014-10-27 株式会社Ｍｅｃｘ アスファルト合材の搬送装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016065A (en) * 1958-02-26 1962-01-09 Lucifer Sa Servo-valves
US3219060A (en) * 1962-12-19 1965-11-23 United Aircraft Corp Hydraulic amplification with hydraulic feedback
US3349800A (en) * 1964-01-15 1967-10-31 Herion Multi-way changeover valve in the form of a flat slide valve with servo drive
US3425449A (en) * 1966-11-10 1969-02-04 Parker Hannifin Corp Solenoid controlled valve
US3452779A (en) * 1967-08-22 1969-07-01 Racine Hydraulics & Machinery Fluidic interface valve and control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016065A (en) * 1958-02-26 1962-01-09 Lucifer Sa Servo-valves
US3219060A (en) * 1962-12-19 1965-11-23 United Aircraft Corp Hydraulic amplification with hydraulic feedback
US3349800A (en) * 1964-01-15 1967-10-31 Herion Multi-way changeover valve in the form of a flat slide valve with servo drive
US3425449A (en) * 1966-11-10 1969-02-04 Parker Hannifin Corp Solenoid controlled valve
US3452779A (en) * 1967-08-22 1969-07-01 Racine Hydraulics & Machinery Fluidic interface valve and control system

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949645A (en) * 1973-07-03 1976-04-13 Messier Hispano Distributing unit for a dual action hydraulic electro-distributor
US4114650A (en) * 1976-10-06 1978-09-19 Gordon Carroll G Valve structure
US20040035805A1 (en) * 2002-08-21 2004-02-26 Hansen Dennis B. Method and apparatus for flushing contaminants from a container of fluids
US7056442B2 (en) * 2002-08-21 2006-06-06 Hansen Dennis B Method and apparatus for flushing contaminants from a container of fluids
US7510662B1 (en) 2002-08-21 2009-03-31 Hansen Dennis B Method and apparatus for flushing contaminants from a container of fluids
US20090294709A1 (en) * 2008-06-02 2009-12-03 Stretch Dale A Two step valve actuator
US9435438B2 (en) 2008-06-02 2016-09-06 Eaton Corporation Valve manifold
US8590570B2 (en) * 2008-06-02 2013-11-26 Eaton Corporation Two step valve actuator
US8464753B2 (en) * 2009-03-26 2013-06-18 Abb Technology Ag Valve arrangement
US20100243927A1 (en) * 2009-03-26 2010-09-30 Abb Technology Ag Valve arrangement
US8281897B1 (en) * 2010-02-02 2012-10-09 Trendsetter Engineering, Inc. Automatic accumulator switching apparatus and system
WO2011154056A1 (de) * 2010-06-11 2011-12-15 Bühler AG Ventilanordnung
CN103038558A (zh) * 2010-06-11 2013-04-10 布勒股份公司 阀门配置
WO2014008880A3 (de) * 2012-07-07 2015-03-26 Bernt Westarp Leitungssystem zum transport von flüssigkeiten
CN103967754B (zh) * 2014-05-14 2016-09-07 干平 节能进气阀
CN103967754A (zh) * 2014-05-14 2014-08-06 干平 节能进气阀
US20180051814A1 (en) * 2016-08-16 2018-02-22 Hamilton Sundstrand Corporation Servovalve
US10683943B2 (en) * 2016-08-16 2020-06-16 Hamilton Sunstrand Corporation Servovalve
WO2018080960A1 (en) 2016-10-26 2018-05-03 3M Innovative Properties Company Reversing valve and household water purifier including same technical field
EP3532755A4 (de) * 2016-10-26 2020-06-17 3M Innovative Properties Company Umkehrventil und haushaltswasseraufbereiter damit
US10851899B2 (en) 2016-10-26 2020-12-01 3M Innovative Properties Company Reversing valve and household water purifier including same technical field
CN107605551A (zh) * 2017-09-20 2018-01-19 中国船舶重工集团公司第七0三研究所 一种滑油压力屏蔽装置
CN107605551B (zh) * 2017-09-20 2023-08-01 中国船舶重工集团公司第七0三研究所 一种滑油压力屏蔽装置

Also Published As

Publication number Publication date
DE1802119A1 (de) 1969-08-07
JPS503014B1 (de) 1975-01-30
DE6801536U (de) 1969-04-17
GB1193028A (en) 1970-05-28
FR1593087A (de) 1970-05-25
CH469215A (de) 1969-02-28

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