Title:
【発明の名称】高負荷内燃機関用の軽金属ピストン
Document Type and Number:
Japanese Patent JPH10505146
Kind Code:
A
Abstract:
PCT No. PCT/DE95/01064 Sec. 371 Date Jan. 7, 1997 Sec. 102(e) Date Jan. 7, 1997 PCT Filed Aug. 7, 1995 PCT Pub. No. WO96/07841 PCT Pub. Date Mar. 14, 1996In a light-metal piston for highly stressed internal combustion engines with a combustion chamber in the piston head, in order to keep the stresses at the edge of the combustion chamber low without unnecessarily increasing the stresses in the support and the gudgeon pin boss, the following features are provided in combination: the combustion chamber in the piston head is not reinforced; the drilling of gudgeon pin boss is widened (crowned) at and towards its inner end at least in a partial region X of its entire length; the drilling in each gudgeon pin boss is a shaped drilling widening conically from the outside at least in a partial region Z; the drilling of each gudgeon pin boss has two oblique wells running from its inner end.
Inventors:
Wolfgang Isler
Helmut Korotek
Helmut Korotek
Application Number:
JP50908896A
Publication Date:
May 19, 1998
Filing Date:
August 07, 1995
Export Citation:
Assignee:
Mare Gezel Shaft Mitt Beschlenktel Haftung
International Classes:
F02F3/00; F02B23/06; F02F3/26; F16J1/16; F02B3/06; (IPC1-7): F02F3/26; F02F3/00; F16J1/16
Attorney, Agent or Firm:
Toshio Yano (3 outside)