GB1186382A - Differential By-Pass Valve - Google Patents

Differential By-Pass Valve

Info

Publication number
GB1186382A
GB1186382A GB05091/67A GB1509167A GB1186382A GB 1186382 A GB1186382 A GB 1186382A GB 05091/67 A GB05091/67 A GB 05091/67A GB 1509167 A GB1509167 A GB 1509167A GB 1186382 A GB1186382 A GB 1186382A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
delivery
pump
tank
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
Application number
GB05091/67A
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.)
Bastian Blessing Co
Original Assignee
Bastian Blessing Co
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 Bastian Blessing Co filed Critical Bastian Blessing Co
Publication of GB1186382A publication Critical patent/GB1186382A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • 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
    • F16K1/30—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 specially adapted for pressure containers
    • F16K1/304—Shut-off valves with additional means
    • F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
    • 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
    • F16K1/30—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 specially adapted for pressure containers
    • F16K1/304—Shut-off valves with additional means
    • F16K1/306—Shut-off valves with additional means with a valve member, e.g. stem or shaft, passing through the seat
    • 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
    • F16K1/30—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 specially adapted for pressure containers
    • F16K1/307—Additional means used in combination with the main valve
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • 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
    • Y10T137/85954—Closed circulating system

Abstract

1,186,382. Regulating pumps. BASTIANBLESSING CO. April 3, 1967 [April 22, 1966], No. 15091/67. Heading F1A. [Also in Division G3] A system for pumping liquefied gas from a supply tank 10, Fig.1, e.g. a tanker vehicle, to a receiving tank 26 comprises a high-volume, positive-displacement pump 14 driven by an engine 20, e.g. the vehicle engine, over-loading of the pump due to excessive delivery pressure being prevented by a by-pass valve 36 between the pump delivery line 22 and the supply tank 10, the valve sensing the pressure differential between the delivery line and the supply tank, and opening when the differential exceeds a predetermined, adjustable value. The by-pass valve 36 comprises a main valve member 74, Fig. 2, controlling flow between pump delivery line connection 34 and supply tank connection 38, and a pilot valve member 88 operated by a piston 92 against an adjustable spring assembly 96, which sets the operating pressure of the valve. Piston 92 is subjected on its right hand side to the pump delivery pressure via passage 114a, or via a connection between union 113 and the pump, Fig. 3 (not shown), the left hand side being subjected to supply tank pressure via passages 76 and 58. Valve member 74 is carried by a piston 66 sliding in a cylinder 62, and having a tubular portion 78 sliding in passage 58, the valve member being held in its closed position by a light spring 82 and by the delivery pressure acting through constriction 125 from pilot cylinder 90. When the differential pressure becomes excessive, pilot piston 92 moves pilot valve 88 to the left against springs 96, and releases the delivery pressure in cylinder 62 via passage 121 and valve port 86. The delivery pressure in connection 34 then acts to lift valve 74 from its seat to by-pass the delivery through connection 38. The aspirating action produced by the delivery flow past surfaces 137 between legs 131 acts to further lower the pressure in passages 76, 58 and 84. Constriction 125 throttles the flow of liquid into cylinder 62 while the pilot valve is open. A strainer 111 is provided in union 113. Pump 14 is connected to tank 10 via a valve 12, by-pass valve 36 is connected to tank 10 via a hand shut-off valve 40 and check valve 42, and delivery line 22 is connected to tank 26 via a check valve 28.
GB05091/67A 1966-04-22 1967-04-03 Differential By-Pass Valve Expired GB1186382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US544499A US3399696A (en) 1966-04-22 1966-04-22 Differential by-pass valve

Publications (1)

Publication Number Publication Date
GB1186382A true GB1186382A (en) 1970-04-02

Family

ID=24172427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05091/67A Expired GB1186382A (en) 1966-04-22 1967-04-03 Differential By-Pass Valve

Country Status (2)

Country Link
US (1) US3399696A (en)
GB (1) GB1186382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421959A1 (en) * 1989-10-05 1991-04-10 IDRORAME S.r.l. Pumping station for the pressurization of antifire plants, civil plants and the like

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH550351A (en) * 1972-04-10 1974-06-14 Sulzer Ag SHUT-OFF VALVE WITH SERVO PISTON.
US4165951A (en) * 1977-06-30 1979-08-28 Amtrol Incorporated Water pressure booster system and control valve therefor
US4771806A (en) * 1987-07-31 1988-09-20 Max Widenmann Armaturenfabrik Pilot-controlled pressure-limiting valve
US4796659A (en) * 1987-12-22 1989-01-10 Lehmann George F High response unloading valve
US5002087A (en) * 1989-10-10 1991-03-26 Laminar Fluid Controls, Inc. Multipurpose valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580128A (en) * 1947-03-28 1951-12-25 Denison Eng Co Pilot unit for relief valves
US2807274A (en) * 1955-03-21 1957-09-24 Vickers Inc Power transmission
US2945515A (en) * 1958-06-04 1960-07-19 Standard Oil Co Liquefied gas handling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421959A1 (en) * 1989-10-05 1991-04-10 IDRORAME S.r.l. Pumping station for the pressurization of antifire plants, civil plants and the like

Also Published As

Publication number Publication date
US3399696A (en) 1968-09-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees