GB1330608A - Valve spools - Google Patents

Valve spools

Info

Publication number
GB1330608A
GB1330608A GB1402772A GB1402772A GB1330608A GB 1330608 A GB1330608 A GB 1330608A GB 1402772 A GB1402772 A GB 1402772A GB 1402772 A GB1402772 A GB 1402772A GB 1330608 A GB1330608 A GB 1330608A
Authority
GB
United Kingdom
Prior art keywords
plugs
tubular members
welding
friction welded
march
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
GB1402772A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1330608A publication Critical patent/GB1330608A/en
Expired legal-status Critical Current

Links

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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Multiple-Way Valves (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

1330608 Welding by pressure; making valve spools CATERPILLAR TRACTOR CO 24 March 1972 [29 March 1971] 14027/72 Headings B3A and B3R [Also in Division F2] A process for making a spool for a fluid-pressure control valve comprises, in one embodiment, pressing plugs 58, 59 into tubular members 51, 52 which are then friction welded together at their adjacent ends. Plugs 62 and 63 are friction welded to the opposite ends of the tubular members. Alternatively, the plugs 58, 59 are omitted and the tubular members 51, 52 are friction welded to either side of a single plug 61. In other embodiments the outer end plugs are integrally formed with the tubular members (Fig. 3, not shown) or there is only a single tubular member (Fig. 5, not shown) divided by a partition into two open-ended chambers which are closed off by welding on end plugs. The welding is done on a machine (Fig. 1, not shown) in which one chuck is held stationary whilst the other is rotated.
GB1402772A 1971-03-29 1972-03-24 Valve spools Expired GB1330608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12882171A 1971-03-29 1971-03-29

Publications (1)

Publication Number Publication Date
GB1330608A true GB1330608A (en) 1973-09-19

Family

ID=22437136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1402772A Expired GB1330608A (en) 1971-03-29 1972-03-24 Valve spools

Country Status (2)

Country Link
DE (1) DE2214273A1 (en)
GB (1) GB1330608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001124A1 (en) * 1979-10-29 1981-04-30 Gen Signal Corp Pressure compensated steering system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629217A1 (en) * 1996-07-19 1998-01-22 Eckehart Schulze Hydraulic valve
CN107525312B (en) * 2017-09-29 2023-06-27 海信空调有限公司 Combined throttle valve debugging tool
CN111268794B (en) * 2020-03-01 2022-07-26 浙江富春紫光环保股份有限公司 Automatic feeding system and storage tank of strain for sewage treatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001124A1 (en) * 1979-10-29 1981-04-30 Gen Signal Corp Pressure compensated steering system

Also Published As

Publication number Publication date
DE2214273A1 (en) 1972-10-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees