GB325194A - Improvements in engine pistons - Google Patents

Improvements in engine pistons

Info

Publication number
GB325194A
GB325194A GB3171628A GB3171628A GB325194A GB 325194 A GB325194 A GB 325194A GB 3171628 A GB3171628 A GB 3171628A GB 3171628 A GB3171628 A GB 3171628A GB 325194 A GB325194 A GB 325194A
Authority
GB
United Kingdom
Prior art keywords
piston
grooves
head
space
insulating material
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
GB3171628A
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.)
FIAT BRITISH AUX IES Ltd
Original Assignee
FIAT BRITISH AUX IES 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 FIAT BRITISH AUX IES Ltd filed Critical FIAT BRITISH AUX IES Ltd
Priority to GB3171628A priority Critical patent/GB325194A/en
Publication of GB325194A publication Critical patent/GB325194A/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 
    • F02F3/16—Pistons  having cooling means
    • F02F3/20—Pistons  having cooling means the means being a fluid flowing through or along piston
    • F02F3/22—Pistons  having cooling means the means being a fluid flowing through or along piston the fluid being liquid
    • 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
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/048—Heat transfer

Landscapes

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

Abstract

325,194. Shannon, D. M., and Fiat British Auxiliaries, Ltd. Nov. 1, 1928. Pistons.-In a piston in which the depending portion C, Fig. 8, of the head is made of tapered cross-section, the flow of heat to the upper packing-ring grooves is obstructed by means of plane or inclined grooves D<2>, or by means of cylindrical grooves cut in the piston crown. The grooves may be filled with insulating material. The axes of the grooves may be eccentric to the piston axis, in order to secure a greater flow of heat to the side of the piston which is pressed against the cylinder wall during the working stroke. Instead of grooves, rows of holes may be employed, or a hollow space E<2>, Fig. 6, may be cast in the piston head. The core used in casting this space may be removed in the usual manner, or may be of insulating material, which is left in position. Alternatively, the space may open to the periphery of the piston, as shown, and be covered by a shrunk-on ring d<1> having a shoulder d<2> to prevent displacement. The head A<1>, Fig. 8, may be separate from the skirt A<2>, and be formed of nickel steel, or other metal having a low coefficient of expansion.
GB3171628A 1928-11-01 1928-11-01 Improvements in engine pistons Expired GB325194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3171628A GB325194A (en) 1928-11-01 1928-11-01 Improvements in engine pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3171628A GB325194A (en) 1928-11-01 1928-11-01 Improvements in engine pistons

Publications (1)

Publication Number Publication Date
GB325194A true GB325194A (en) 1930-02-03

Family

ID=10327334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3171628A Expired GB325194A (en) 1928-11-01 1928-11-01 Improvements in engine pistons

Country Status (1)

Country Link
GB (1) GB325194A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494748A (en) * 1946-02-16 1950-01-17 Smith Corp A O Piston
DE1001860B (en) * 1952-05-15 1957-01-31 Kloeckner Humboldt Deutz Ag Cylinder head for internal combustion engines
DE1002989B (en) * 1953-10-24 1957-02-21 Arnold Tross Dipl Ing Dr Ing For internal combustion engines, a poppet valve, in particular an exhaust valve, and a method for producing the same
DE1033954B (en) * 1955-08-18 1958-07-10 Maschf Augsburg Nuernberg Ag Cooled light alloy piston
US2848287A (en) * 1955-06-14 1958-08-19 Gen Motors Corp Piston head construction
DE1064751B (en) * 1958-03-07 1959-09-03 Schmidt Gmbh Karl Light metal pistons, in particular a forged or pressed version, with ring channels in the piston head that serve to hold coolants
JP2016521331A (en) * 2013-05-10 2016-07-21 アカーテース パワー，インク． Piston thermal management in opposed piston engines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494748A (en) * 1946-02-16 1950-01-17 Smith Corp A O Piston
DE1001860B (en) * 1952-05-15 1957-01-31 Kloeckner Humboldt Deutz Ag Cylinder head for internal combustion engines
DE1002989B (en) * 1953-10-24 1957-02-21 Arnold Tross Dipl Ing Dr Ing For internal combustion engines, a poppet valve, in particular an exhaust valve, and a method for producing the same
US2848287A (en) * 1955-06-14 1958-08-19 Gen Motors Corp Piston head construction
DE1033954B (en) * 1955-08-18 1958-07-10 Maschf Augsburg Nuernberg Ag Cooled light alloy piston
DE1064751B (en) * 1958-03-07 1959-09-03 Schmidt Gmbh Karl Light metal pistons, in particular a forged or pressed version, with ring channels in the piston head that serve to hold coolants
US10174713B2 (en) 2011-04-18 2019-01-08 Achates Power, Inc. Piston thermal management in an opposed-piston engine
JP2016521331A (en) * 2013-05-10 2016-07-21 アカーテース パワー，インク． Piston thermal management in opposed piston engines

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