US3811458A - Pneumatic pulse diverters - Google Patents

Pneumatic pulse diverters Download PDF

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Publication number
US3811458A
US3811458A US00301515A US30151572A US3811458A US 3811458 A US3811458 A US 3811458A US 00301515 A US00301515 A US 00301515A US 30151572 A US30151572 A US 30151572A US 3811458 A US3811458 A US 3811458A
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US
United States
Prior art keywords
piston
pulse
cylinder
inlet
control member
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
US00301515A
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English (en)
Inventor
H Kuhnelt
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
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Publication of US3811458A publication Critical patent/US3811458A/en
Anticipated expiration legal-status Critical
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
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C3/00—Circuit elements having moving parts
    • F15C3/02—Circuit elements having moving parts using spool 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • Y10T137/2554—Reversing or 4-way valve systems
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/265—Plural outflows
    • Y10T137/2668—Alternately or successively substituted outflow
    • Y10T137/2698—Electrical control

Definitions

  • the present invention provides a pneumatic pulse diverter comprising a housing having an inlet and two outlets, a control chamber in communication with the inlet, flow paths leading from the control chamber to the respective outlets, a control member mounted in said chamber for movement between a pair of terminal positions in which the control member blocks one'or other of said flow paths respecively, a cylinder formed in said housing, a piston in said cylinder having a driving connection with said control member whereby the appearance of each of a series of successive pneumatic pulses at the inlet effects movement of the piston to establish connection between the inlet and one or other of said outlets through the respective flow path whilst the control member blocks the other flow path and the release of each pulse causes the driving connection to be established between the piston and the control member to move the control member from one terminal position to the other alternately to block the respective flow paths whereby the successive pulses appearing at the inlet are transmitted alternately to the respective outlets.
  • the control chamber may be formed as a radially enlarged portion of the cylinder with the control member comprising a disc mounted displaceably on the piston.
  • the disc can be drivingly connected to the piston by springs acting on the disc in opposite directions which springs are supported on the piston. In this arrangement the flow paths from the control chamber to the outlets pass through the cylinder.
  • control chamber can be separate from the cylinder and can be in communication with the cylinder by channels forming part of the respective flow paths and controlled by the control member, the channels opening into the cylinder at opposite ends of the piston.
  • the piston and/or the control member it is advisable for the piston and/or the control member to consist at least partly of magnetic and/or magnetizable material.
  • the drive connection between piston and control member then takes place by the magnetic transfer of force. It is also possible for this magnetic transfer of force to be used with control chambers that are formed as sections of the cylinder so that it is not necessary to have the abovementioned springs to transmit the force.
  • the piston can be a double piston with two opposed sections and a rod connecting the sections, the outlets being formed in the cylinder on opposite sides of the control chamber.
  • the opposed sections of the piston can be sealed against the cylinder at least in the end positions of the piston, and can control vent openings which lead from the said cylinder. The pulse diverter thereby simultaneously withthe reversing of the pulses from one output to the other, also effects a venting of the output line not in use.
  • a pulse diverter'according to the invention can be further amplified by providing at least at one end of the piston a pneumatic, electric or magnetic adjusting drive, such as an adjusting piston or an electromagnet,
  • the pulse diverter becomes a full value binary counting, stage with extinguishing signal imput which is useful as a'counting mechanism in the dual system; and several pulse diverters can 'be connected in tandem.
  • FIGS. 1 and 2 show one form of pulse diverter according to the invention in axial cross-section and in two different positions
  • Y F IGS. 3 and 4 are cross sections through two further forms of pulse diverter.
  • the pulse diverters shown consist of a housing I having a pulse input 2 and two pulse outputs 3'and 4.
  • a control chamber 5 with a control member .6 and a cylinder 7 with a piston 8.
  • the input 2 opens into the control chamber 5 and the outputs 3 and 4 lead from the cylinder. Vent openings 9 and 10 are provided leading from the cylinder 7.
  • control chamber 5 is formed as a radially enlarged sec tion of the cylinder 7 and the control member 6-consists of a disc of soft material such as seali ngmaterial,
  • the piston 8 is adouble piston, having two opposed sections or end pieces 11 and 12, which are sealed against the cylinder 7 by O-rings, and are connected by a rod 13.
  • the disc-shaped control member 6 rests on the piston rod 13 and is displaceable in relation to thepiston rod, by two springs 14 and 15 which are arranged concentrically on the piston rod 13 and are supported on the end pieces 11 and 12, the control member 6 thus being in positive connection with the piston 8.
  • the position shown in FIG. 1 corresponds to a rest position in the pressureless state.
  • the control member 6 and the piston 8 are in their left end positions in' which the piston 8 is held by the friction of the sealing rings and the control member 6 by the force of the spring 14 which is thereby tensioned slightly.
  • a pulse fed to the input 2 holds the control member 6 in the present end position and displaces the piston 8 to'the opposite end position shown in FIG. 2.
  • the end piece 11 thereby frees the output 3 so that a flow path is established between the input 2 and output 3 via the control chamber 5 and the cylinder 7.
  • the left-hand half of the cylinder 7 and with it the output 4 remain closed from the control chamber 5 because the pulsepresses the control member 6 sealingly on to the left-hand wall of the control chamber 5.
  • the first control pulse thus passes to the output 3.
  • control chamber 5 is separate from the cylinder 7 and the control member 6 consists of a disc of magentizable material, for example soft iron, which may be covered on its sealing surfaces with a sealing material.
  • the end pieces 11 and 12 of the piston 8 are made either entirely of magnetic material or a permanent magnet is inserted in the end pieces 11, 12.
  • the housing consists of non-magnetizable materialfA magnetic transmission of force is thus achieved between the control member 6 and the piston 8.
  • the flow paths between the control chamber 5 and the two outputs 3 and 4 are formed by channels [6 and 17 which extend laterally from the control chamber 5, are controlled by the control member 6 and at the two ends of the piston open into the cylinder bore 7 which completes the flow paths.
  • the position shown in FIG. 3 corresponds to the pressureless state.
  • a pressure pulse is fed to the input, the pulse passes through the channel 16 and reaches the right-hand end of the piston 8, displacing the piston into the left end position.
  • the pressure pulse presses the control member 6 on to the inlet of the channel 17.
  • the pulse is thereby transmitted to the output 3.
  • the output 4 is vented through the vent channel 10, since the end piece 12 of the piston 8 is located in the left-hand end position.
  • the control member 6 which is then relieved of pressure is moved into its right end position through magnetic force exerted on it by the end piece 11 of the piston 8, as a result of which member 6 closes offthe channel 16 and opens the input to the channel 17.
  • the next pressure pulse therefore passes through the channel 17 and reaches the left side of piston 8, displacing the latter to the right so that the flow path from the control chamber 5 to the output 4 is opened.
  • the embodiment according to FIG. 4 corresponds substantially to the structure according to FIGS. 1 and 2.
  • the end pieces ll and 12 of the piston 8 are sealed off only in their end positions by O-rings l8 and 19 inserted into the housing I and have tubular continuations 20 and 21 which abut sealingly against the discshaped control member 6.
  • the functioning of the pulse diverter corresponds to what was described with reference to FIGS. 1 and 2.
  • this embodiment is provided with a return to zero formed by an adjusting drive 22 mounted on the end of the housing 1.
  • the adjusting drive consists of an adjusting piston 24 displaceable against a return spring 23, which adjusting piston acts on one end of the piston 8 and to which an extinguishing pulse can be fed through an input 25.
  • the pulse diverter can thus be brought into the desired output position at any time by the feeding of an extinguishing pulse.
  • the pulse diverter is brought to the left output position in which the pressure pulse first fed through the input 2 each time can be transmitted to the output 3.
  • the pulse changer according to FIG. 4 thus forms a full value binary counting stage with extinguishing signal input.
  • the adjusting drive 22 can also be provided on the left end of the housing 1 or both ends can be equipped with an adjusting drive so that the pulse changer can be positively brought into each of its two end positions.
  • a positive connection can be produced between the piston 8 and the control member 6 by magnetic transmission of force.
  • the control chamber can be provided eccentrically to the cylinder bore 7 in the housing 1 and the control member 6 can be arranged pivotably instead of displaceably, in which case apositive drive connection with the piston can be effected either with springs or through the magnetic transmission of force.
  • a pneumatic pulse diverter comprising a housing having an inlet and two outlets, a control chamber in communication with the inlet, flow paths leading from the control chamber to the respective outlets, a control member comprising a disc mounted in said chamber for movement between a pair of terminalpositions in which the control member blocks one or other of said flow paths respectively, a cylinder formed in said housing, the control chamber being formed as a radially enlarged section of the cylinder, a piston in said cylinder on which said disc is displa'ceably mounted and with which said disc is drivingly connected by opposed springs acting between the disc and the piston, whereby the presence of each of a series of successive pneumatic pulses at the inlet effects movement of the piston to establish a connection between the inlet and one or other of said outlets through the respective flow path while the control member blocks the other flow path, and the release of each pulse causes the driving connection to be established between the piston and the control member to move the control member from one terminal position to the other alternately to block the respective flow paths, whereby successive pulses appearing at the in
  • a pulse diverter according to claim 1 wherein the piston has two opposed sections operating in opposed cylinder sections respectively and a rod connecting the piston sections, and the outputs communicate with the respective opposed sections of the cylinder.
  • a pulse diverter according to claim 2, wherein the opposed sections of the piston are sealed at least in the terminal positions of the piston against the cylinder and 6 v the opposed piston sections control the communication least at one end of the piston'there is provided one of between the outlets and vent openings formed in the cylinder.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Multiple-Way Valves (AREA)
US00301515A 1971-10-29 1972-10-27 Pneumatic pulse diverters Expired - Lifetime US3811458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT934171 1971-10-29

Publications (1)

Publication Number Publication Date
US3811458A true US3811458A (en) 1974-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00301515A Expired - Lifetime US3811458A (en) 1971-10-29 1972-10-27 Pneumatic pulse diverters

Country Status (7)

Country Link
US (1) US3811458A (de)
CA (1) CA958964A (de)
CH (1) CH541083A (de)
DE (1) DE2251882A1 (de)
ES (1) ES408053A1 (de)
FR (1) FR2158318A1 (de)
IT (1) IT970039B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980001A (en) * 1973-08-08 1976-09-14 Cyphelly Ivan J Reversing valve operated by a pilot valve
US4169616A (en) * 1977-09-26 1979-10-02 C. Hager & Sons Hinge Manufacturing Company Valve and cylinder-actuated lock controlled thereby
US4344212A (en) * 1978-04-03 1982-08-17 International Standard Electric Corporation Valve and a wire cutting, skinning and wrapping tool employing the valve
US4759261A (en) * 1984-12-18 1988-07-26 G. Dusterloh Gmbh Three-way three-position valve for cooling a reversible hydraulic machine
US5255517A (en) * 1989-09-13 1993-10-26 Weber Guenter Control device for hydraulic operating cylinders of a combined lifting platform and a closing wall of a vehicle
US5445182A (en) * 1994-08-11 1995-08-29 Sturman; Oded E. Toggle fluid control valve
US5649562A (en) * 1995-06-06 1997-07-22 Sturman; Oded E. Toggle fluid control valve
FR2820186A1 (fr) * 2001-01-31 2002-08-02 Poclain Hydraulics Ind Dispositif d'echange pour un circuit ferme
EP1167843A3 (de) * 2000-06-26 2002-11-20 Eaton Corporation Wechselventil mit verbesserten Schalteigenschaften

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650701A1 (de) * 1976-11-05 1978-05-11 Graubremse Gmbh Mit mindestens zwei in entgegengesetzte richtungen wirksamen steuerkraeften beaufschlagbares ventil
DE9015061U1 (de) * 1990-11-02 1992-03-05 Wihag Nutzfahrzeugtechnik GmbH & Co KG, 33647 Bielefeld Hydroschalter mit mehreren Ausgängen für eine impulsartige Bewässerung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893416A (en) * 1956-08-20 1959-07-07 Hanson Equipment Company Pressure responsive reversing valve
GB1235456A (en) * 1970-02-07 1971-06-16 Temple Instr Ltd Fluid valves
US3722525A (en) * 1971-04-14 1973-03-27 P Epple Fluid switching valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893416A (en) * 1956-08-20 1959-07-07 Hanson Equipment Company Pressure responsive reversing valve
GB1235456A (en) * 1970-02-07 1971-06-16 Temple Instr Ltd Fluid valves
US3722525A (en) * 1971-04-14 1973-03-27 P Epple Fluid switching valve

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980001A (en) * 1973-08-08 1976-09-14 Cyphelly Ivan J Reversing valve operated by a pilot valve
US4169616A (en) * 1977-09-26 1979-10-02 C. Hager & Sons Hinge Manufacturing Company Valve and cylinder-actuated lock controlled thereby
US4344212A (en) * 1978-04-03 1982-08-17 International Standard Electric Corporation Valve and a wire cutting, skinning and wrapping tool employing the valve
US4759261A (en) * 1984-12-18 1988-07-26 G. Dusterloh Gmbh Three-way three-position valve for cooling a reversible hydraulic machine
US5255517A (en) * 1989-09-13 1993-10-26 Weber Guenter Control device for hydraulic operating cylinders of a combined lifting platform and a closing wall of a vehicle
US5445182A (en) * 1994-08-11 1995-08-29 Sturman; Oded E. Toggle fluid control valve
WO1996005457A1 (en) * 1994-08-11 1996-02-22 Sturman Oded E Toggle fluid control valve
US5649562A (en) * 1995-06-06 1997-07-22 Sturman; Oded E. Toggle fluid control valve
EP1167843A3 (de) * 2000-06-26 2002-11-20 Eaton Corporation Wechselventil mit verbesserten Schalteigenschaften
FR2820186A1 (fr) * 2001-01-31 2002-08-02 Poclain Hydraulics Ind Dispositif d'echange pour un circuit ferme
EP1229245A1 (de) 2001-01-31 2002-08-07 Poclain Hydraulics Industrie Austauschvorrichtung für einen geschlossenen Kreislauf
US6817177B2 (en) 2001-01-31 2004-11-16 Poclain Hydraulics Industrie Replenishing device for a closed circuit

Also Published As

Publication number Publication date
FR2158318A1 (de) 1973-06-15
CH541083A (de) 1973-08-31
DE2251882A1 (de) 1973-05-03
IT970039B (it) 1974-04-10
CA958964A (en) 1974-12-10
ES408053A1 (es) 1975-11-16

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