US3825224A - Needle plug cock - Google Patents

Needle plug cock Download PDF

Info

Publication number
US3825224A
US3825224A US37651773A US3825224A US 3825224 A US3825224 A US 3825224A US 37651773 A US37651773 A US 37651773A US 3825224 A US3825224 A US 3825224A
Authority
US
United States
Prior art keywords
seat
needle plug
plug
orifice
section
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
Other languages
English (en)
Inventor
R Remane
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.)
Application des Gaz SA
Original Assignee
Application des Gaz SA
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 Application des Gaz SA filed Critical Application des Gaz SA
Application granted granted Critical
Publication of US3825224A publication Critical patent/US3825224A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F16K1/425—Attachment of the seat to the housing by plastical deformation, e.g. valve seat or housing being plastically deformed during mounting
    • 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
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86734—With metering feature

Definitions

  • the present invention relates to cocks in which a mobile closure member is constituted by a needle valve member or plug adapted to co-operate with a corresponding seat.
  • the needle plug is conical and is controlled axially by means of a screwthreading so that by making it rotate in the desired direction it is applied against the seat, which is annular in shape.
  • Such cocks provide excellent sealing-tightness when closed and the cost price of such cocks is not high.
  • they have the disadvantage of not allowing easy regulation of the rate of flow in actual practice when the flow is relatively slight at maximum opening.
  • experience shows that the user can regulate the flame only with considerable difficulty, the control provided being not much better than a two-position control.
  • the angle of rotation of the plug control handle between the closed position and that which corresponds to the maximum supply for the burner is much too small to permit convenient regulation.
  • the present invention aims at obviating these disadvantages and permitting a needle plug cock to be provided which effects easy regulation of the rate of flow even when the apparatus being controlled has a very small throughflow.
  • the seat of the cock made of an elastically deformable material such as rubber or elastomer s of the same kind, comprises an orifree of noncircular cross-section such that under the action of the deformation which the conical portion of the needle plug exerts on it, it adapts itself progressively to the circular cross-section of the said portion until it bears against it over its entire periphery.
  • the seat a crosssection in the form of a square with the corners pointed or rounded.
  • the circular cross-section thereof is tangential to the sides of the square and the gas or other fluid can pass freely through the four spaces formed between this section and the corners of the square shape.
  • the sides of the square. become rounded and come to bear against an appreciable arc of the section of this needle plug, whereas the surface of the four aforesaidspaces continually decreases.
  • FIG. 1 is a general view in section of a needle plug cock according to the invention.
  • FIG. 2 is an exploded perspective view of the seat of the said cock and the lower portion of the corresponding needle plug.
  • FIGS. 3 to 5 are diagrammatic views in perspective showing three successive positions of the needle plug and the seat during the operation of the cock from its position of full opening.
  • FIG. 1, 1 designates the cock body or casing, which is made for example of metal, and comprises a vertical bore divided into three portions 2a, 2b, and 2c of decreasing diameter, and a transverse duct 3 which starts from the intermediate portion 2b of the aforesaid bore.
  • T o simplify explanations and although this is not obligatory, it can be supposed that the fluid in question, such as for example a fuel gas under pressure, arrives at the lower end of the portion 2a of the vertical bore and issues through the transverse duct 3.
  • a seat 4 Arranged in the aforesaid'portion 2a is a seat 4 the details of which will be described hereinafter.
  • This seat the external form of which is cylindrical at the diameter of the portion 2a, abuts against the intermediate shoulder which separates the two portions 2a and 2b, and it is retained in position by a metal washer'S which itself bears on a split sealing ring 6 arranged in a groove of the bore.
  • the upper portion 20 of the vertical bore of the body 1 is screwthreaded internally to receive a portion-7a, screwthreaded in corresponding fashion, of a metal needle plug which also comprises in addition to this portion 7a an upper stem 7b which extends out above the body 1 to receive a suitable manipulating element and then, below the screwthreaded portion, a cylindri-
  • a metal needle plug which also comprises in addition to this portion 7a an upper stem 7b which extends out above the body 1 to receive a suitable manipulating element and then, below the screwthreaded portion, a cylindri-
  • this gradual deformation of the seat can correspond to a considercal portion 7c of large diameter formed with a groove in which is arranged a toroidal sealing ring 8, a cylindrical portion 7d of reduced diameter, a frustoconical portion 7e and finally a cylindrical end portion 7f of reduced diameter. It will be understood that if the stem 7b is given a rotating movement there will be an axial displacement of the entire needle plug and more particularly'its frustoconical portion 7e will rise or descend relatively to the seat 4.
  • the seat 4 is made of an elastically deformable mate rial such as rubber or an equivalent elastomer. It comprises an axial orifice 4a of square cross-section the side of which is substantially equal to the diameter of the end portion 7f of the needle plug.
  • the needle plug is turned in the direction corresponding to downward movement.
  • the frustoconical portion 7e of the plug then penetrates into the orifice 4a, deforming it elastically.
  • the spaces 9 thus decrease in cross-section as shown in FIG. 4 and the throughflow of gas decreases to a corresponding extent.
  • a moment arrives when the diameter of the frustoconical portion 7e at the level of the upper face of the seat 4 becomes greater than the length of the diagonal of the square outline of the orifice 4a. The latter is then entirely closed and all throughflow of gas ceases. (Position shown in FIG.
  • the reduction in the cross-section of the spaces 9 is extremely gradual so that the user can easily regulate the heater, even if the burner has a very small rate of flow and if the pitch of the screwthreads 2c and 7a is relatively coarse.
  • a rotation of the control knob makes it possible to change from full running to a stopped state with a gradual closing zone extending over 270 or even more.
  • cylindrical end portion 7f forms in a way a kind of core preventing the seat from being crushed axially and guiding the deformation of the seat.
  • its presence is not indispensable and the needle plug could easily terminate in a cone constituting a prolongation of the portion 7e.
  • the orifice 4a which is assumed to have parallel faces, could on the contrary have a downwardly converging shape more or less in the manner of the frustoconical portion 7e itself.
  • the cross section of this orifice could comprise any desired noncircular shape, for example polygonal, rectangular, elliptical etc.
  • Needle plug cock with seat made of elastically deformable material such as rubber or elastomers of the same kind, characterised in that the said seat (4) comprises an orifice (4a) having a non-circular crosssection such that under the action of the deformation to which it is subjected by the conical portion (7e) of the needle plug as the said plug engages further into it, it adapts itself gradually to the circular cross-section of the said portion until it bears against the said portion over its entire periphery.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US37651773 1972-10-25 1973-07-05 Needle plug cock Expired - Lifetime US3825224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238344A FR2204280A5 (en, 2012) 1972-10-25 1972-10-25

Publications (1)

Publication Number Publication Date
US3825224A true US3825224A (en) 1974-07-23

Family

ID=9106382

Family Applications (1)

Application Number Title Priority Date Filing Date
US37651773 Expired - Lifetime US3825224A (en) 1972-10-25 1973-07-05 Needle plug cock

Country Status (9)

Country Link
US (1) US3825224A (en, 2012)
JP (1) JPS4995226A (en, 2012)
CA (1) CA984814A (en, 2012)
DE (1) DE2345315A1 (en, 2012)
ES (1) ES196814Y (en, 2012)
FR (1) FR2204280A5 (en, 2012)
GB (1) GB1428189A (en, 2012)
IT (1) IT995617B (en, 2012)
SE (1) SE398382B (en, 2012)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933174A (en) * 1974-05-20 1976-01-20 Sanko Engineering & Construction Co., Ltd. Valve with a pulsation damping device
US3985336A (en) * 1975-07-16 1976-10-12 Clarence Bentley Drip irrigation valve
ES2049613A2 (es) * 1991-11-11 1994-04-16 Peci A Monge Valvula para conduccion de fluidos.
US20160208946A1 (en) * 2015-01-19 2016-07-21 Moen Incorporated Electronic plumbing fixture fitting with electronic valve having low closing force
US20160282883A1 (en) * 2015-03-23 2016-09-29 Lancer Corporation Method and apparatus for flow regulation
US20190383400A1 (en) * 2018-06-19 2019-12-19 Jiangsu Suyan Valve Machinery Co.,Ltd Quantitative water adjusting valve
US20220120267A1 (en) * 2020-10-16 2022-04-21 Microjet Technology Co., Ltd. Slim-type gas transporting device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4365477B2 (ja) * 1999-05-06 2009-11-18 シーケーディ株式会社 流量調節弁
JP2006002888A (ja) * 2004-06-18 2006-01-05 Denso Corp バルブ
DE102006029267B4 (de) * 2006-06-26 2009-07-30 Thomas Magnete Gmbh Regelventil für R 744-Klimasysteme
DE102007051560A1 (de) * 2007-10-29 2009-04-30 Robert Bosch Gmbh Magnetventil

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1046892A (fr) * 1951-10-24 1953-12-09 Dispositif obturateur et régulateur de l'écoulement des fluides
JPS4532713Y1 (en, 2012) * 1967-07-11 1970-12-14
US3557833A (en) * 1968-04-16 1971-01-26 Roger Gilmont Instr Inc Micrometric capillary valve with tapered passage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933174A (en) * 1974-05-20 1976-01-20 Sanko Engineering & Construction Co., Ltd. Valve with a pulsation damping device
US3985336A (en) * 1975-07-16 1976-10-12 Clarence Bentley Drip irrigation valve
ES2049613A2 (es) * 1991-11-11 1994-04-16 Peci A Monge Valvula para conduccion de fluidos.
US20160208946A1 (en) * 2015-01-19 2016-07-21 Moen Incorporated Electronic plumbing fixture fitting with electronic valve having low closing force
US20160282883A1 (en) * 2015-03-23 2016-09-29 Lancer Corporation Method and apparatus for flow regulation
US9933792B2 (en) * 2015-03-23 2018-04-03 Lancer Corporation Method and apparatus for flow regulation
US20190383400A1 (en) * 2018-06-19 2019-12-19 Jiangsu Suyan Valve Machinery Co.,Ltd Quantitative water adjusting valve
US20220120267A1 (en) * 2020-10-16 2022-04-21 Microjet Technology Co., Ltd. Slim-type gas transporting device

Also Published As

Publication number Publication date
SE398382B (sv) 1977-12-19
CA984814A (en) 1976-03-02
ES196814Y (es) 1975-08-16
DE2345315A1 (de) 1974-05-09
ES196814U (es) 1975-03-16
GB1428189A (en) 1976-03-17
IT995617B (it) 1975-11-20
FR2204280A5 (en, 2012) 1974-05-17
JPS4995226A (en, 2012) 1974-09-10

Similar Documents

Publication Publication Date Title
US3825224A (en) Needle plug cock
US3379406A (en) Diaphragm valve with water hammer preventer
US3703273A (en) Low loss innervalve assembly
US20160048140A1 (en) Single-Handle Dual-Control Thermostatic Valve and Single-Handle Dual-Control Thermostatic Faucet
US3767164A (en) Throttle-shutoff valve
CN107725853B (zh) 基于压力的流量自调节控制阀
US2616653A (en) Positive shutoff valve
US3948284A (en) Rising-plug plug valve
DE1450640B2 (de) Verschlussarmatur fuer mit fluessiggas gefuellte flaschen
US3217735A (en) Valve
CN210050317U (zh) 一种具有提示功能的关断阀
US4499918A (en) Mixing faucet
US3746031A (en) Spout construction for diverter
CN102817877A (zh) 一种水压开关控制阀
US3536295A (en) Balanced sleeved plug valve or cock
US2914084A (en) Fluid flow control device
US3286736A (en) Valve for use with viscous liquids
US2973007A (en) Pressure regulator
CN208793664U (zh) 一种大通径针阀
US2786645A (en) Line seating conical valves
US2608352A (en) Thermostatically controlled valve
US2991918A (en) Top valve for a pressure vessel
US3030033A (en) Shower head
US2633862A (en) Water faucet
GB894360A (en) Improvements in or relating to flow controlling devices