US3307580A - Device for commutatively creating shut-off members for fluids in general particularly for reciprocating motors - Google Patents

Device for commutatively creating shut-off members for fluids in general particularly for reciprocating motors Download PDF

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Publication number
US3307580A
US3307580A US397409A US39740964A US3307580A US 3307580 A US3307580 A US 3307580A US 397409 A US397409 A US 397409A US 39740964 A US39740964 A US 39740964A US 3307580 A US3307580 A US 3307580A
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US
United States
Prior art keywords
piston
shut
cylinder
commutatively
rocker
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
US397409A
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English (en)
Inventor
Alfieri Giuseppe
Moriondo Roberto
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
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 Magneti Marelli SpA filed Critical Magneti Marelli SpA
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Publication of US3307580A publication Critical patent/US3307580A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
    • F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • 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
    • Y10T137/86389—Programmer or timer
    • Y10T137/86445—Plural, sequential, valve actuations
    • 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
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor

Definitions

  • This invention relates to a device for commutatively operating fluid shut-01f members which finds an application in all of such apparatus utilizing a compressed fluid, such as for example, reciprocating motors in which two chambers of the considered fluid-operated apparatus are alternatively put into communication either with a source of pressure fluid or with the discharge.
  • a compressed fluid such as for example, reciprocating motors in which two chambers of the considered fluid-operated apparatus are alternatively put into communication either with a source of pressure fluid or with the discharge.
  • distributors are used, the operation of which requires particular constructional provisions; moreover, it is required that said control be made in a simple and quick manner, such as, for example, the one which may be obtained by pressing a pushing member acting on a push-button.
  • the device in question allows that the object be reached so that the supply, to a part or section of the fluid-opeiated apparatus, of the fluid under pressure, also establishes the connection with the discharge of the remaining portion of said fluid-operated apparatus.
  • the device according to this invention is characterized in that it comprises a pushing member provided with a fulcrumed spring-biased rod which is adapted to act on a rocker carrying a deflecting member adapted to alternatively bring in engagement said connecting rod with either one or the other of the ends of the rocker and means connected with said rocker to act 'on at least one commutable shut-oh. member, adapted to connect the fluid-operated apparatus with either the discharge or the source of fluid under pressure.
  • the pushing member is biased by spring means which maintain it in a predetermined rest position and said spring means also act on the connecting rod which is engageable commutatively with one or the other of the two arms of the rocker, the latter having, at its pivot pin, a deflecting tile with which the end of the connecting rod is alternatively engaged in order that it be deflected toward the end of the rocker to be actuated.
  • the pushing means can be actuated by manual direct control or by mechanical, electronic, or pneumatic remote control.
  • the rocker can directly or indirectly actuate, through slides, cams and the like, one or more commutatable shut-off members; for example, in the case of reciprocating motors, the device can comprise two com-mutatable shut-off members which may be alternatively actuated so that, when one of the chambers of said motor is supplied with the fluid under pressure, the other is connected with the discharge, and vice-versa.
  • A designates an electromagnet which United States Patent controls the actuation of the device B, which, in turn, actuates the shut-off members C which are connected with the fluid-operated apparatus, not shown.
  • the armature 10 of the electromagnet A is biased by a spring 12 and is connected by means of a rod 14 with a shut-off valve 16 of a changing-over or comm-utatable type which is adapted to control the communication between a chamber 18 and either a discharge opening 20 or a passage 22 connected with a source of fluid under pressure.
  • Said armature 10 of the electromagnet A biased by spring 12, maintains securely the shut-01f valve 16 seated in its seat to intercept the communication between chamber 18 and passage 22.
  • Electromagnet A and the parts just considered are carried by a cover 24 which closes a cylinder 26 in which a piston 28 of the device B previously considered tightly slides, and chamber B1 defined in said cylinder by piston 28 is connected with chamber 18 as will be hereinafter explained.
  • the connecting rod 30 of piston 28 co-operates with saidpiston through a hinge comprising a cup 32 enabling said connecting rod to suitably oscillate, and a spring 3-4, which is held at the lower end by a flange 36 in a casing 38 which closes said cylinder 26, acts on said cup pressing piston 28 against cover 24.
  • Chamber B2 of this cylinder is connected with atmosphere through a port 40 in the bottom of casing 38.
  • pivot pin 42 Arranged normally to the axis of piston 28, there is a pivot pin 42 which is carried by the walls of casing 38, said pivot pin 42 mounting a rocker 44 having in its intermediate section (that is at pivot pin 42) a triangular lug 46 whereby the free end of connecting rod 30 may alternatively co-operate with the two inclined faces of said lug.
  • rocker 44 is connected, by means of a pivot pin 48, with a rod or slide 50 which is slidably guided in a chamber 52 which is arranged laterally of cylinder 26.
  • Said slide has, in suitable positions, one or more notches (two, in the case illustrated) 54 and 55 in each of which the shaped end of bored pushrods 56 and 57 respectively may alternatively be engaged, said pushrods being guided in the body of shut-off members C and laterally placed with respect to cylinder 26.
  • Pushrods 56 and 57 have axial bases therein and both of said bores are connecta'ble with a chamber which, by means of an open iug 62, is connected with the discharge or vent.
  • Chambers 64 and 65 are connected, through valves 68 and 69, with a connection 70 leading to the source of fluid under pressure.
  • Valves 68 and 69 are conventionally pressed against the respective seats to shut-off the communication between either connections 6670 or 67-70, and said valves are moved away from the respective seats by the hollow ends of pushrods 56 and 57.
  • either of said pushrods 56 and 57 raises the respective valve 68 and 69 to establish the communication between connection 70 and either connections 66 or 67, Whereas the other pushrod connects the other connection 67, or 66, with discharge 62.
  • valve 16 which, on one hand, establishes communication between chamber 18 and connection 22 and, on the other hand, closes communication between said chamber 18 and connection 20.
  • Connection rod 30 of said piston is first displaced with its axis coincidental with the axis of cylinder 26.
  • said connecting rod is misaligned and, clockwise rocked together with cup 32, is rocked clockwise and against the action of spring 34, due to the position assumed by lug 46.
  • connecting rod 30 continues until the end of the latter reaches the bottom end 45 of lug 46 and further displacement of piston 28 provokes the oscillation counterclockwise of rocker 44 and slide 50.
  • Piston 28, upon reaching the end of its stroke, is returned to its initial position, also because in the meantime the energization of the electromagnet A is interrupted, and valve 16 is returned to its initial position by means of spring 12; chamber B is connected with the discharge, and spring 34 returns piston 28 and conecting rod 30 to the initial position and the latter, upon disengagement from lug 46 becomes aligned with the axis of piston 28.
  • Rocker 44 at the end of this operation, is arranged so that the apex of lug 46 is displaced relative to the axis of cylinder 26 at the side opposite the one considered, to reset thus the device for the next operation which occurs upon the re-energization of the electro-magnet A so that the end of connecting rod 30 engages the other face 45 of the triangular lug to return the rocker 44 to the position initially considered.
  • connection 67 is connected with the discharge, while connection 66 is connected with connection 70 and, accordingly, with the source of compresed air.
  • piston 28 could be manually operated (that is, said piston may comprise a pushbutton which the operator depresses) or said piston can be directly operated by said Cir electromagnet A.
  • piston 28 could be manually operated (that is, said piston may comprise a pushbutton which the operator depresses) or said piston can be directly operated by said Cir electromagnet A.
  • other modifications and variations may be made, especially depending upon the characteristics of use of the device which may be incorporated in any fluid-operated apparatus, such as compressed air motors.
  • a device for commutatively controlling flow of fluids comprising a pivoted rocker member having a deflector thereon, a cylinder, a piston within said cylinder, a rod connecting with said piston, said rod being adapted to contact said deflector when said piston is actuated and be deflected alternately to one or another ends of said rocker member to move said rocker member about said pivot alternately in one or another direction, means for injecting fluid into said cylinder for actuating said piston, a slide member pivotally connected to one end of said rocker member and adapted to slide along a path to one position when said rocker member is moved in one direction and to another position when said rocker member is moved in another direction, a valve having a passage therein through which fluids may pass, and means responsive to the position of said slide for closing said passage when said slide is in said one position and opening said passage when said slide is in said other position.
  • said means for injecting fluid includes a valve controlling flow of fluid to said cylinder, and electromagnetic means for opening and closing said valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
US397409A 1963-09-16 1964-09-18 Device for commutatively creating shut-off members for fluids in general particularly for reciprocating motors Expired - Lifetime US3307580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1892163 1963-09-16

Publications (1)

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US3307580A true US3307580A (en) 1967-03-07

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US397409A Expired - Lifetime US3307580A (en) 1963-09-16 1964-09-18 Device for commutatively creating shut-off members for fluids in general particularly for reciprocating motors

Country Status (3)

Country Link
US (1) US3307580A (it)
CH (1) CH408654A (it)
GB (1) GB1030037A (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029119A (en) * 1975-04-30 1977-06-14 Hal Klieves Valve and valve system
US4144903A (en) * 1974-01-22 1979-03-20 Jered Industries, Inc. Vacuum flush water closet
US4178954A (en) * 1977-06-14 1979-12-18 Hal Klieves Diaphragm valve and valve system
US4462425A (en) * 1981-07-13 1984-07-31 Economics Laboratory, Inc. Backflushing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576771A (en) * 1949-03-01 1951-11-27 Arrow Hart & Hegeman Electric Operating mechanism for electric switches
US2867235A (en) * 1955-03-15 1959-01-06 Bendix Aviat Corp Snap acting dual valve mechanism
FR1180445A (fr) * 1957-08-01 1959-06-04 Distributeur à tiroir pour l'alimentation d'appareils à air comprimé
CA581313A (en) * 1959-08-11 C. Williams Norman Remote positioning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA581313A (en) * 1959-08-11 C. Williams Norman Remote positioning system
US2576771A (en) * 1949-03-01 1951-11-27 Arrow Hart & Hegeman Electric Operating mechanism for electric switches
US2867235A (en) * 1955-03-15 1959-01-06 Bendix Aviat Corp Snap acting dual valve mechanism
FR1180445A (fr) * 1957-08-01 1959-06-04 Distributeur à tiroir pour l'alimentation d'appareils à air comprimé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144903A (en) * 1974-01-22 1979-03-20 Jered Industries, Inc. Vacuum flush water closet
US4029119A (en) * 1975-04-30 1977-06-14 Hal Klieves Valve and valve system
US4178954A (en) * 1977-06-14 1979-12-18 Hal Klieves Diaphragm valve and valve system
US4462425A (en) * 1981-07-13 1984-07-31 Economics Laboratory, Inc. Backflushing system

Also Published As

Publication number Publication date
CH408654A (it) 1966-02-28
GB1030037A (en) 1966-05-18

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