GB477907A - Improvements in or relating to poppet-valves - Google Patents

Improvements in or relating to poppet-valves

Info

Publication number
GB477907A
GB477907A GB1905736A GB1905736A GB477907A GB 477907 A GB477907 A GB 477907A GB 1905736 A GB1905736 A GB 1905736A GB 1905736 A GB1905736 A GB 1905736A GB 477907 A GB477907 A GB 477907A
Authority
GB
United Kingdom
Prior art keywords
core
head
valve
plate
retaining
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
GB1905736A
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 GB1905736A priority Critical patent/GB477907A/en
Publication of GB477907A publication Critical patent/GB477907A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/12—Cooling of valves
    • F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)

Abstract

477,907. Valves. WESLAKE, H. July 9, 1936, No. 19057. [Class 7 (vi)] In poppet valves in which the stem is provided with a core of good thermal conductivity having an enlarged head which is retained within a recess in the valve head bv a steel plate secured to the valve head, this retaining-plate is united with the head of the core by soldering, brazing, or welding, in order to effect a more rapid transference of the heat from the valve head The Figure shows a valve with a core 15 of copper having a head 17, to which the retaining-plate 18 is united by soldering &c. The core is formed with a longitudinal slot 19, and a gap is left at 21, to allow for expansion. The plate 18 is formed with an iron spindle 16 which is a snug fit within the core. In a modification, the core consists of copper tubing flared at its upper end to correspond to the shape of the valve, and the retaining - plate is united to the core along the flared portion. In another form, the spindle 16 is omitted, and the core partially filled with a salt or material which becomes liquid when heated, such as sodium nitrate or metallic sodium. The core head and the recess in the valve may be undercut so that they contact only over a narrow surface when cold. Specification 448,463 is referred to.
GB1905736A 1936-07-09 1936-07-09 Improvements in or relating to poppet-valves Expired GB477907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1905736A GB477907A (en) 1936-07-09 1936-07-09 Improvements in or relating to poppet-valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1905736A GB477907A (en) 1936-07-09 1936-07-09 Improvements in or relating to poppet-valves

Publications (1)

Publication Number Publication Date
GB477907A true GB477907A (en) 1938-01-10

Family

ID=10123029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1905736A Expired GB477907A (en) 1936-07-09 1936-07-09 Improvements in or relating to poppet-valves

Country Status (1)

Country Link
GB (1) GB477907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107227982A (en) * 2016-03-24 2017-10-03 本田技研工业株式会社 Engine valve and its manufacture method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107227982A (en) * 2016-03-24 2017-10-03 本田技研工业株式会社 Engine valve and its manufacture method

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