GB937647A - Improvements in or relating to liquid pumps - Google Patents

Improvements in or relating to liquid pumps

Info

Publication number
GB937647A
GB937647A GB534862A GB534862A GB937647A GB 937647 A GB937647 A GB 937647A GB 534862 A GB534862 A GB 534862A GB 534862 A GB534862 A GB 534862A GB 937647 A GB937647 A GB 937647A
Authority
GB
United Kingdom
Prior art keywords
sleeve
stroke
port
piston
plunger
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
GB534862A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB534862A priority Critical patent/GB937647A/en
Publication of GB937647A publication Critical patent/GB937647A/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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/122—Valves; Arrangement of valves arranged in or on pistons the piston being free-floating, e.g. the valve being formed between the actuating rod and the piston
    • 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
    • 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
    • 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
    • F04B2015/081—Liquefied gases
    • F04B2015/0818—Carbon dioxide

Abstract

937,647. Reciprocating pumps. L. TYREE. Feb. 12, 1962, No. 5348/62. Class 102(1). A reciprocating pump comprises an intake chamber and inelt 32, a compression chamber 34 connected thereto by a passage 36, which is formed by a plunger 42 and sleeve 43 slidable therewith. The end 42V of the plunger and the lower aperture 43V in the sleeve 43 cooperates to form a valve which closes on the compression stroke. Towards the end of the compression stroke, a crosshead 28 contacts a sleeve 37 which is moved downwardly to close the inlet 32. On the return stroke, a locking sleeve 44 on the sleeve 43 is contacted by shoulders 42S on the piston rod 42 and at the end of this stroke, the sleeve 44 moves the sleeve 37 upwardly to uncover the port 32. A pivoted spring loaded lever 50, operated by a rack 37T and pinion 49, holds the sleeve 37 in position during each piston stroke. The intake port 32 may consist of a number of radially disposed ports which communicate with a manifold surrounding the cylinder 30, Fig. 5 (not shown). In an alternative method of actuating the sleeve 37, the upper end thereof is located in the crosshead housing, which is correspondingly elongated. A pin on the piston rod engages in a slot in the sleeve and, at the ends of the piston stroke, a small rotational movement is imparted to the sleeve 37 to open or close the port 32.
GB534862A 1962-02-12 1962-02-12 Improvements in or relating to liquid pumps Expired GB937647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB534862A GB937647A (en) 1962-02-12 1962-02-12 Improvements in or relating to liquid pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB534862A GB937647A (en) 1962-02-12 1962-02-12 Improvements in or relating to liquid pumps

Publications (1)

Publication Number Publication Date
GB937647A true GB937647A (en) 1963-09-25

Family

ID=9794416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB534862A Expired GB937647A (en) 1962-02-12 1962-02-12 Improvements in or relating to liquid pumps

Country Status (1)

Country Link
GB (1) GB937647A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205664A1 (en) * 1999-07-29 2002-05-15 Bent Larsen Oil transfer pump
US9915250B2 (en) 2015-08-24 2018-03-13 Caterpillar Inc. Hydraulic drive system for cryogenic pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205664A1 (en) * 1999-07-29 2002-05-15 Bent Larsen Oil transfer pump
US6394772B1 (en) 1999-07-29 2002-05-28 Bent Johan Larsen Oil transfer pump
US9915250B2 (en) 2015-08-24 2018-03-13 Caterpillar Inc. Hydraulic drive system for cryogenic pump

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