Miele H 4430 Pyrolytic Dokumentacja Pobierz pdf (Strona 175)

The Patent Office Journal 17/12/2010

4593

(12) PATENT APPLICATION PUBLICATION (21) Application No.4021/CHENP/2010 A

(19) INDIA

(22) Date of filing of Application :29/06/2010 (43) Publication Date : 17/12/2010

(54) Title of the invention : PISTON ASSEMBLY AND CONNECTING ROD HAVING A PROFILED WRIST PIN BORE

THEREFOR

(51) International classification :F02F3/00

(31) Priority Document No :61/012,530

(32) Priority Date :10/12/2007

(33) Name of priority country :U.S.A.

(86) International Application No

Filing Date

:PCT/US08/086122

:10/12/2008

(87) International Publication No

:WO 2009/076380

(61) Patent of Addition to Application

Number

Filing Date

:NA

(62) Divisional to Application Number

Filing Date

:NA

(71)Name of Applicant :

1)FEDERAL-MOGUL CORPORATION

Address of Applicant :26555 NORTHWESTERN

HIGHWAY, SOUTHFIELD, MI 48033 U.S.A.

(72)Name of Inventor :

1)NIGRO, ROBERTO, BUENO

2)WANG, KAI

(57) Abstract :

A piston assembly and connecting rod therefore is provided. The connecting rod has an elongate body extending to an end for

operable attachment to a piston. The end as a wrist pin bore extending between apposite sides of the body. The wrist pin bore has

wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a

circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a curcumferential direction of the

wrist pin bore on laterally apposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform

lubrication low across the interface region between the wrist pin bore and the wrist pin extending there through.

No. of Pages : 13 No. of Claims : 17

1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 255 256

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