Lower link of piston crank mechanism for internal

专利名称：Lower link of piston crank mechanism for

internal combustion engine

发明人：Takahashi, Naoki,Ushijima, Kenshi,Moteki,

Katsuya

申请号：EP04015253.0申请日：20040629公开号：EP1496218A2公开日：20050112

专利附图：

摘要：A lower link of a double link type piston crank mechanism comprises a crank pinbearing housing portion that is adapted to receive a crank pin of a crankshaft and defines

a first contour, an upper pin receiving bore portion that is adapted to receive an upperpin of an upper link and defines a second contour, a control pin receiving bore portionthat is adapted to receive a control pin of a control link and defines a third contour, and agiven portion that has therein an internally threaded bore formed in one of upper andlower half-parts of the lower link and a bored portion formed in the other of the upperand lower half-parts of the lower link, the given portion defining a fourth contour. Theupper and lower half-parts are coupled by a bolt that passes through the bored portionand is engaged with the internally threaded bore. The lower link has further radiallyprojected portions that extend radially outward beyond an imaginary minimum referencecontour that is provided by connecting outer edge portions of the first, second, third andfourth contours with a continuous line.

申请人：Nissan Motor Co., Ltd.

地址：2 Takara-cho, Kanagawa-ku Yokohama-shi, Kanagawa 221-0023 JP

国籍：JP

代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät

更多信息请下载全文后查看