发明授权
US07874276B2 Fuel injection control method for an internal-combustion engine and engine using the same
失效
用于内燃机和使用其的发动机的燃料喷射控制方法
- 专利标题: Fuel injection control method for an internal-combustion engine and engine using the same
- 专利标题(中): 用于内燃机和使用其的发动机的燃料喷射控制方法
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申请号: US11816292申请日: 2006-02-13
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公开(公告)号: US07874276B2公开(公告)日: 2011-01-25
- 发明人: Alain Ranini , Sébastien Potteau
- 申请人: Alain Ranini , Sébastien Potteau
- 申请人地址: FR Cedex
- 专利权人: Institut Francais du Petrole
- 当前专利权人: Institut Francais du Petrole
- 当前专利权人地址: FR Cedex
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: FR0501610 20050216
- 国际申请: PCT/FR2006/000317 WO 20060213
- 国际公布: WO2006/087451 WO 20060824
- 主分类号: F02F3/26
- IPC分类号: F02F3/26 ; F02B3/00 ; F02B19/10
摘要:
The invention relates to a method for control of fuel injection for an internal combustion engine, in particular with direct fuel injection, comprising at least one cylinder (10), one piston (30) running in said cylinder, with a projection (34) arranged in a concave bowl (32), a fuel injector (22) and a combustion chamber (26). According to the invention, during high engine loads, a first amount of fuel is injected at a piston (30) position of between 35 and 70° before the top dead centre position of said piston, followed by an injection of at least one second amount of fuel, the first amount of fuel being less than the second amount and the fuel is injected into said combustion chamber by means of an injector (22) with a cone angle (a1) less than or equal to 2Arctg CD/2F where CD is the diameter of the cylinder (10) and F the distance between the points of origin of the fuel jets from the injector (22) and the position of the piston corresponding to a crankshaft angle of 50° with relation to the top dead centre (PMH) of the piston.
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