GB492345A - Improvements in or relating to pistons - Google Patents

Improvements in or relating to pistons

Info

Publication number
GB492345A
GB492345A GB7990/37A GB799037A GB492345A GB 492345 A GB492345 A GB 492345A GB 7990/37 A GB7990/37 A GB 7990/37A GB 799037 A GB799037 A GB 799037A GB 492345 A GB492345 A GB 492345A
Authority
GB
United Kingdom
Prior art keywords
per cent
piston
oxide coating
graphite
per
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
GB7990/37A
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.)
ALUMINUM COLORS Inc
Original Assignee
ALUMINUM COLORS Inc
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 ALUMINUM COLORS Inc filed Critical ALUMINUM COLORS Inc
Publication of GB492345A publication Critical patent/GB492345A/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 
    • F02F3/10—Pistons  having surface coverings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/22—Rings for preventing wear of grooves or like seatings
    • 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
    • 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
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • 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
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel

Abstract

An aluminium alloy piston is provided with a surface oxide coating impregnated with graphite. The piston may be cast from an alloy containing 10-19 per cent of silicon, 0,5-5 per cent of copper, 0,2-3 per cent of magnesium, 0,3-5 per cent of nickel, and balance aluminium. After machining, the piston is immersed in an electrolyte containing 20 per cent sulphuric acid and 5 per cent oxalic acid, and with the piston as anode, a current of 13 amps. per square foot is applied at 14 volts for thirty minutes. The resulting oxide coating is then coated with a suspension of deflocculated graphite, e.g. that known under the Registered Trade Mark "Aquadag" diluted with six times its volume of water.
GB7990/37A 1936-07-03 1937-03-18 Improvements in or relating to pistons Expired GB492345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492345XA 1936-07-03 1936-07-03

Publications (1)

Publication Number Publication Date
GB492345A true GB492345A (en) 1938-09-19

Family

ID=21958745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7990/37A Expired GB492345A (en) 1936-07-03 1937-03-18 Improvements in or relating to pistons

Country Status (1)

Country Link
GB (1) GB492345A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084385A1 (en) * 1982-01-20 1983-07-27 KOLBENSCHMIDT Aktiengesellschaft Light-metal piston
EP1081367A2 (en) * 1999-09-01 2001-03-07 KS Kolbenschmidt GmbH Engine piston and method for cladding said piston with a hard layer
EP2003319A1 (en) * 2007-06-15 2008-12-17 C.R.F. Societa Consortile per Azioni Internal combustion engine having cylinders and/or pistons with a nano-structured surface and method for obtaining this surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084385A1 (en) * 1982-01-20 1983-07-27 KOLBENSCHMIDT Aktiengesellschaft Light-metal piston
EP1081367A2 (en) * 1999-09-01 2001-03-07 KS Kolbenschmidt GmbH Engine piston and method for cladding said piston with a hard layer
EP1081367A3 (en) * 1999-09-01 2002-01-30 KS Kolbenschmidt GmbH Engine piston and method for cladding said piston with a hard layer
EP2003319A1 (en) * 2007-06-15 2008-12-17 C.R.F. Societa Consortile per Azioni Internal combustion engine having cylinders and/or pistons with a nano-structured surface and method for obtaining this surface

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