GB1126751A - Volatile liquid pumping system - Google Patents

Volatile liquid pumping system

Info

Publication number
GB1126751A
GB1126751A GB43835/65A GB4383565A GB1126751A GB 1126751 A GB1126751 A GB 1126751A GB 43835/65 A GB43835/65 A GB 43835/65A GB 4383565 A GB4383565 A GB 4383565A GB 1126751 A GB1126751 A GB 1126751A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
pump
open
head
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
GB43835/65A
Inventor
Edmund Pollack Thomas
Leif Anton Ness
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Priority to GB43835/65A priority Critical patent/GB1126751A/en
Publication of GB1126751A publication Critical patent/GB1126751A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0073—Piston machines or pumps characterised by having positively-driven valving the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1,126,751. Reciprocating pumps. AIR PRODUCTS & CHEMICALS, Inc. Oct. 15, 1965, No.43835/65. Heading F1A. In a pump for highly volatile liquids, e.g. liquefied gases or super-heated water, one or more pump units 24a-c, Fig. 1, and ( Fig. 2 not shown), are mounted in an insulated chamber, each pump unit comprising a reciprocating piston 40, Fig. 7, which acts to open an inlet valve 62 at the beginning of the suction stroke by interengagement of spring fingers 67 on the valve head with a cavity 71 in the piston head. Clearance in cavity 71 provides lost motion during the initial movement of piston 40. When valve 62 is fully open, valve spring abutment 66 engages the cylinder head and the continued movement of piston 40 disengages it from valve 62. On the delivery stroke, delivery valves 77 open and valve 62 closes, piston 40 re-engaging the inlet valve at the end of the delivery stroke. Casing 45 surrounding the pump acts as a suction reservoir, and is surrounded by the insulated chamber, into which vaporized liquid is vented from the pump circuit, and through which coolant gas may be circulated.
GB43835/65A 1965-10-15 1965-10-15 Volatile liquid pumping system Expired GB1126751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB43835/65A GB1126751A (en) 1965-10-15 1965-10-15 Volatile liquid pumping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43835/65A GB1126751A (en) 1965-10-15 1965-10-15 Volatile liquid pumping system

Publications (1)

Publication Number Publication Date
GB1126751A true GB1126751A (en) 1968-09-11

Family

ID=10430517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43835/65A Expired GB1126751A (en) 1965-10-15 1965-10-15 Volatile liquid pumping system

Country Status (1)

Country Link
GB (1) GB1126751A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674577A1 (en) * 1991-03-28 1992-10-02 Draegerwerk Ag PUMP DEVICE FOR THE DOSED CIRCULATION OF LIQUIDS.
US9915250B2 (en) 2015-08-24 2018-03-13 Caterpillar Inc. Hydraulic drive system for cryogenic pump
CN109707993A (en) * 2019-02-16 2019-05-03 四川亚西机器有限公司 A kind of electrodynamic type liquid nitrogen pump
US10626856B2 (en) 2017-01-12 2020-04-21 Caterpillar Inc. Cryogenic fluid pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674577A1 (en) * 1991-03-28 1992-10-02 Draegerwerk Ag PUMP DEVICE FOR THE DOSED CIRCULATION OF LIQUIDS.
US9915250B2 (en) 2015-08-24 2018-03-13 Caterpillar Inc. Hydraulic drive system for cryogenic pump
US10626856B2 (en) 2017-01-12 2020-04-21 Caterpillar Inc. Cryogenic fluid pump
CN109707993A (en) * 2019-02-16 2019-05-03 四川亚西机器有限公司 A kind of electrodynamic type liquid nitrogen pump

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