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GB1326480A - Piston ring grooves - Google Patents

Piston ring grooves

Info

Publication number
GB1326480A
GB1326480A GB1326480DA GB1326480A GB 1326480 A GB1326480 A GB 1326480A GB 1326480D A GB1326480D A GB 1326480DA GB 1326480 A GB1326480 A GB 1326480A
Authority
GB
United Kingdom
Prior art keywords
blank
groove
piston
temperature
aluminium alloy
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
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW 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 TRW Inc filed Critical TRW Inc
Publication of GB1326480A publication Critical patent/GB1326480A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/10Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12Details
    • F16J9/22Rings for preventing wear of grooves or like seatings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1326480 Coating piston grooves TRW Inc 31 Dec 1971 61012/71 Heading B3A [Also in Division F2] A method of making an aluminium alloy piston with a ring groove reinforcement comprises heating a piston blank 10 formed with a peripheral groove (11), Figs. 1-3 (not shown), therein, to a temperature in the range 330- 390‹ F., spraying a bonding metal over the surface of the groove while the blank is in the temperature range, and then spraying a wearresistant metal into the groove while the blank is still in the temperature range. The groove (11), of stepped profile, is machined into the head of a piston blank, and the blank is then thoroughly cleaned and preheated to a temperature below the softening point of the blank material, e.g. 400-420‹ F. for aluminium alloy pistons. The blank is then rotated and grid blasted with cast iron grit from nozzles (12), (13) followed by the application of a bonding metal over the groove, e.g. a nickel/aluminium alloy, using a metallizing gun. A wear-resistant metallic coating, e.g. stainless steel, is then sprayed into the groove while the blank is still hot, i.e. 330-390‹ F., a cooling air jet being used to control the temperature if necessary. The blank is then finally machined, the groove 16 then being able to accommodate a piston ring.
GB1326480D 1971-12-31 1971-12-31 Piston ring grooves Expired GB1326480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6101271 1971-12-31

Publications (1)

Publication Number Publication Date
GB1326480A true GB1326480A (en) 1973-08-15

Family

ID=10486466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1326480D Expired GB1326480A (en) 1971-12-31 1971-12-31 Piston ring grooves

Country Status (1)

Country Link
GB (1) GB1326480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163073A (en) * 1984-08-13 1986-02-19 Ae Plc Treatment of pistons
GB2201484A (en) * 1987-02-24 1988-09-01 Ae Plc Piston and piston ring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163073A (en) * 1984-08-13 1986-02-19 Ae Plc Treatment of pistons
US4664021A (en) * 1984-08-13 1987-05-12 Ae Plc Treatment of pistons
GB2201484A (en) * 1987-02-24 1988-09-01 Ae Plc Piston and piston ring
GB2201484B (en) * 1987-02-24 1991-09-04 Ae Plc Piston and piston ring

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee