专利检索 ap:("James H Buchwitz" OR "Chad M Cunningham" OR "Nathan D Dahl" OR "Ryan W Sorenson" OR "Dean J Hedlund" OR "Christopher R Benning") AND inv:"Nathan D Dahl" 第 1 页

1.

发明授权
Method and operation of an engine 有权

公开(公告)号：US07431024B2

公开(公告)日：2008-10-07

申请号：US11445731

申请日：2006-06-02

申请人： James H Buchwitz , Chad M Cunningham , Nathan D Dahl , Ryan W Sorenson , Dean J Hedlund , Christopher R Benning

发明人： James H Buchwitz , Chad M Cunningham , Nathan D Dahl , Ryan W Sorenson , Dean J Hedlund , Christopher R Benning

IPC分类号： F02B13/00 , F02B13/02

CPC分类号： F02B11/00 , F02B1/02 , F02B69/02 , F02B75/04 , F02D15/02 , F02D41/0007 , F02D41/0025 , F02D41/3011 , F02D2041/3088 , F02M67/02

摘要： An engine is disclosed which may operate in a first operating state wherein a spark ignited fuel is ignited in a combustion chamber with an igniter and a second operating state wherein a compression ignited fuel is ignited in a combustion chamber with an igniter. A compression ratio in the combustion chamber being up to about eight to one. The engine may be a four-stroke engine. The engine may include a piston having a top portion with a recessed central portion.