Source: https://patents.google.com/patent/US7144017?oq=7%2C496%2C943
Timestamp: 2018-06-21 09:19:43
Document Index: 11373256

Matched Legal Cases: ['§ 120', '§ 371', '§ 119', 'Application No. 0101089', 'arts\n2', 'arts\n3']

US7144017B2 - Piston ring having wear resistant composition - Google Patents
Piston ring having wear resistant composition Download PDF
US7144017B2
US7144017B2 US11010289 US1028904A US7144017B2 US 7144017 B2 US7144017 B2 US 7144017B2 US 11010289 US11010289 US 11010289 US 1028904 A US1028904 A US 1028904A US 7144017 B2 US7144017 B2 US 7144017B2
US11010289
US20050127612A1 (en )
Mehdi Aram
B22F5/02—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of piston rings
This application is a continuation of, and claims priority under 35 U.S.C. § 120 to, application Ser. No. 10/471,561, filed on Sep. 12, 2003, which is a National Stage application filed under 35 U.S.C. § 371 of International Application No. PCT/SE02/00502, filed on Mar. 18, 2002, which claims priority under 35 U.S.C. § 119 to Swedish Application No. 0101089, filed on Mar. 27, 2001, each of which is incorporated herein by reference in its entirety.
One of the advantages of the inventive wear-resistant composition is the ability to withstand yield strength softening up to a temperature of around 600° C. It is not unusual that a piston ring locally has to withstand temperatures in the range of 400 to 500° C. or more in working conditions. If the metallic material (the matrix) in such a composite for some reason, e.g. softening caused by high temperature, can not withstand movement of the hard phase in the composite, the hard phase is not likely to stay in place. The hard phase will leave their place and then work like a polishing agent and cause higher wear (three body wearing).
FIG. 2 is a table showing the rate of wear relative to pressure-exposure in tests of a composition in accordance with one embodiment of the invention vis-à-vis a well-known cast iron for piston rings named Darcast.
No. Name Element Ni Al Cr Zr Nb
1 NiAl—Nb wt % 65–66 27–28 2–3 0.5–1 4–4.5
FIG. 2 is a figure showing the rate of wear-relative to pressure-exposure in tests of a composition in accordance with one embodiment of the invention vis-à-vis a well-known cast iron for piston rings known as Darcast.
No. Name Element Ni Al Fe Mn Ti Zr B
2 Ni3Al—Fe wt % 77– 9–10 11– 0.5 0.5 0.01 0.1
No. Name Element Ni Al Cr C Mn Ti Zr B
3 Ni3Al—Cr wt % 81–83 8–9 7–8 0.1 0.4–0.5 1 0.6 0.1
No. Name Element Fe Al Cr C Mo Ti Zr B
4 Fe3Al—Cr wt % Rem* 13–17 2–6 0.1 0.1–1.5 1 0.6 0.1
Step Time Effect Action
1 0 60 kW 300 Hz Heat treatment starts
2 +20 min 80 kW 400 Hz Reaction starts
3 +65 min 145 kW All Ni is melted
4 +85 min 100 kW 1530 degrees C.
5 +85 min 100 kW Cover with Ca-comp.
6 +90 min 100 kW Add compounds
7 +95 min 100 kW 1533 degrees C.
US11010289 2001-03-27 2004-12-14 Piston ring having wear resistant composition Expired - Fee Related US7144017B2 (en)
SE0101089-1 2001-03-27
SE0101089 2001-03-27
US10471561 US7052018B2 (en) 2001-03-27 2002-03-18 Piston ring having wear resistant composition
PCT/SE2002/000502 WO2002088406A1 (en) 2001-03-27 2002-03-18 Intermetallic wear-resistant material for piston rings
US11010289 US7144017B2 (en) 2001-03-27 2004-12-14 Piston ring having wear resistant composition
US10471561 Continuation
US10471561 Continuation US7052018B2 (en) 2001-03-27 2002-03-18 Piston ring having wear resistant composition
PCT/SE2002/000502 Continuation WO2002088406A1 (en) 2001-03-27 2002-03-18 Intermetallic wear-resistant material for piston rings
US20050127612A1 true US20050127612A1 (en) 2005-06-16
US7144017B2 true US7144017B2 (en) 2006-12-05
ID=20283559
US10469686 Active US6838196B2 (en) 2001-03-27 2002-03-18 Nickel-aluminide based wear resistant material for piston rings
US10471561 Active US7052018B2 (en) 2001-03-27 2002-03-18 Piston ring having wear resistant composition
US11010289 Expired - Fee Related US7144017B2 (en) 2001-03-27 2004-12-14 Piston ring having wear resistant composition
US (3) US6838196B2 (en)
EP (3) EP1379705B1 (en)
JP (3) JP2004531669A (en)
KR (2) KR100854667B1 (en)
CN (3) CN1266292C (en)
DE (3) DE60218356D1 (en)
WO (2) WO2002088407A1 (en)
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WO2002088407A1 (en) 2002-11-07 application
CN1266292C (en) 2006-07-26 grant
JP2004531669A (en) 2004-10-14 application
CN1272452C (en) 2006-08-30 grant
EP1379705A1 (en) 2004-01-14 application
JP2005147406A (en) 2005-06-09 application
KR20040015075A (en) 2004-02-18 application
EP1524459B1 (en) 2007-02-21 grant
DE60218356T2 (en) 2007-10-31 grant
KR100854667B1 (en) 2008-08-27 grant
KR100854666B1 (en) 2008-08-27 grant
JP4361739B2 (en) 2009-11-11 grant
US20040080114A1 (en) 2004-04-29 application
US7052018B2 (en) 2006-05-30 grant
CN1500153A (en) 2004-05-26 application
EP1379705B1 (en) 2008-10-08 grant
JP2004531678A (en) 2004-10-14 application
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EP1524459A3 (en) 2005-04-27 application
DE60218356D1 (en) 2007-04-05 grant
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WO2002088406A1 (en) 2002-11-07 application
KR20040015076A (en) 2004-02-18 application
DE60229225D1 (en) 2008-11-20 grant
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Owner name: KONCENTRA MARINE & POWER AB, SWEDEN
Free format text: CHANGE OF NAME;ASSIGNOR:KONCENTRA HOLDING AB;REEL/FRAME:016513/0020