GB1125892A - Improvements in or relating to pistons for internal combustion engines - Google Patents

Improvements in or relating to pistons for internal combustion engines

Info

Publication number
GB1125892A
GB1125892A GB5308764A GB5308764A GB1125892A GB 1125892 A GB1125892 A GB 1125892A GB 5308764 A GB5308764 A GB 5308764A GB 5308764 A GB5308764 A GB 5308764A GB 1125892 A GB1125892 A GB 1125892A
Authority
GB
United Kingdom
Prior art keywords
inserts
piston
different
expansion
pistons
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
GB5308764A
Inventor
Jeffrey Duree
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.)
Federal Mogul Bradford Ltd
Original Assignee
Hepworth and Grandage Ltd
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 Hepworth and Grandage Ltd filed Critical Hepworth and Grandage Ltd
Priority to GB5308764A priority Critical patent/GB1125892A/en
Priority to DE1965H0058096 priority patent/DE1476062B2/en
Publication of GB1125892A publication Critical patent/GB1125892A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/02—Pistons  having means for accommodating or controlling heat expansion
    • F02F3/04—Pistons  having means for accommodating or controlling heat expansion having expansion-controlling inserts
    • F02F3/047—Pistons  having means for accommodating or controlling heat expansion having expansion-controlling inserts the inserts being located around the gudgeon pin bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1,125,892. Pistons. HEPWORTH & GRANDAGE Ltd. 23 Dec., 1965 [31 Dec., 1964], No. 53087/64. Heading F2T. A piston, particularly a light alloy piston, has two or more expansion controlling inserts 7, 8 engaging or disposed adjacent each gudgeon pin boss 3 and having rates of thermal expansion different from one another and from that of the piston, the inserts extending between the thrust faces 6 and being at different levels with respect to the longitudinal axis of the piston. The lower inserts 8 are made from a metal having a coefficient of thermal expansion lower than that of the metal of the piston but higher than that of the upper inserts 7. The inserts are cast into the gudgeon pin bosses 3 and their ends abut ribs 9 on the skirt 5. In a modification, Figs. 5 and 6 (not shown), the inserts 7 and 8 abut each other along their adjacent edges and their ends are embedded in the ribs 9. The different rates of expansion of the upper and lower inserts 7 and 8 may be achieved, instead of or in addition to making the inserts from metals having different coefficients of expansion, by suitably shaping and/or making the inserts of different thickness and/or perforating the lower inserts.
GB5308764A 1964-12-31 1964-12-31 Improvements in or relating to pistons for internal combustion engines Expired GB1125892A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5308764A GB1125892A (en) 1964-12-31 1964-12-31 Improvements in or relating to pistons for internal combustion engines
DE1965H0058096 DE1476062B2 (en) 1964-12-31 1965-12-29 PISTON FOR COMBUSTION MACHINERY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5308764A GB1125892A (en) 1964-12-31 1964-12-31 Improvements in or relating to pistons for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1125892A true GB1125892A (en) 1968-09-05

Family

ID=10466581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5308764A Expired GB1125892A (en) 1964-12-31 1964-12-31 Improvements in or relating to pistons for internal combustion engines

Country Status (2)

Country Link
DE (1) DE1476062B2 (en)
GB (1) GB1125892A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241195A1 (en) * 1971-08-27 1973-03-22 Hepworth & Grandage Ltd PISTON

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410655A1 (en) * 1984-03-23 1985-10-03 Kolbenschmidt AG, 7107 Neckarsulm LIGHT METAL CONTROL PISTON

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241195A1 (en) * 1971-08-27 1973-03-22 Hepworth & Grandage Ltd PISTON
JPS4831353A (en) * 1971-08-27 1973-04-24

Also Published As

Publication number Publication date
DE1476062A1 (en) 1970-03-26
DE1476062B2 (en) 1977-01-20

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