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1. 发明申请

WO2010032121A2 FUEL SUPPLY APPARATUS AND FUEL SUPPLY METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：燃油供应装置及内燃机燃油供应方法
公开(公告)号：WO2010032121A2
公开(公告)日：2010-03-25
申请号：PCT/IB2009/006880
申请日：2009-09-18
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , KOJIMA, susumu , SUGIMOTO, Tomojiro
发明人： KOJIMA, susumu , SUGIMOTO, Tomojiro
IPC分类号： F02D41/30 , F02D41/24 , F02D41/06 , F02M37/10 , F02D41/38 , F02M59/20 , F02M63/02
CPC分类号： F02D41/3082 , F02D41/062 , F02D41/2448 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M37/10 , F02M59/366 , F02M63/025
摘要： In a fuel supply apparatus for an internal combustion engine, fuel is delivered to a high pressure fuel pump (7) driven by an internal combustion engine, using an electrically-operated low pressure fuel pump (6), and the fuel pressurized by the high pressure fuel pump (7) is supplied to the internal combustion engine. The fuel supply apparatus includes a low pressure pump control portion (42) that controls the low pressure fuel pump (6) to avoid a discharge failure in the high pressure fuel pump (7) due to insufficiency of a feed pressure at which the low pressure fuel pump (6) delivers the fuel to the high pressure fuel pump (7). The low pressure pump control portion (42) stops the low pressure fuel pump (6) in a case where the discharge failure in the high pressure fuel pump (7) is avoided even when the feed pressure is equal to a gauge pressure of 0.
摘要翻译：在用于内燃机的燃料供给装置中，使用电动低压燃料泵（6）将燃料输送到由内燃机驱动的高压燃料泵（7），由高压燃料高压燃料泵（7）被供给到内燃机。燃料供给装置包括低压泵控制部（42），其控制低压燃料泵（6），以避免由于低压燃料泵（7）的低压燃料泵（7）的供给压力不足而引起的排出故障燃料泵（6）将燃料输送到高压燃料泵（7）。即使进给压力等于表压为0，在低压燃料泵（7）的排出故障的情况下，低压泵控制部（42）停止低压燃料泵（6）。

2. 发明申请

WO2008078173A1 INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：内燃机
公开(公告)号：WO2008078173A1
公开(公告)日：2008-07-03
申请号：PCT/IB2007/004081
申请日：2007-12-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , KOJIMA, susumu , HATTORI, Fumiaki
发明人： KOJIMA, susumu , HATTORI, Fumiaki
IPC分类号： F02M55/04 , F02M63/02 , F02M69/46 , F02M69/04
CPC分类号： F02M63/0225 , F02M55/04 , F02M63/029 , F02M63/0295 , F02M69/046 , F02M69/462
摘要： An internal combustion engine includes a low-pressure fuel feed, system (81) that feeds low-pressure fuel pressurized by a feed pump (84) to first delivery pipes (64, 65) through a low-pressure fuel feed pipe (85), first injectors (62, 63) capable of injecting the low-pressure fuel into intake ports (24, 25), a high-pressure fuel feed system (82) that feeds high-pressure fuel pressurized by a high-pressure pump (91) to second delivery pipes (68, 69) through a high-pressure fuel feed pipe (92), and second injectors (66, 67) capable of injecting the high-pressure fuel into combustion chambers (22, 23). A bypass passage (97) communicates the first delivery pipe (65) with the second delivery pipe (97), and a check valve (98) is provided in the bypass pipe (97) for preventing flow of the fuel from the second delivery pipe (68) to the first delivery pipe (65). Thus, transmission of fuel pressure pulsation caused by driving of the high-pressure pump is effectively restricted, so that an appropriate amount of fuel can be supplied to the engine for improved control of the air/fuel ratio.
摘要翻译：内燃机包括低压燃料供给系统（81），其将通过供给泵（84）加压的低压燃料通过低压燃料供给管（85）供给到第一输送管（64,65），能够将低压燃料喷射到吸入口（24,25）中的第一喷射器（62,63）;高压燃料供给系统（82），其输送由高压泵（91）加压的高压燃料）通过高压燃料供给管（92）连接到第二输送管（68,69），以及能够将高压燃料喷射到燃烧室（22,23）中的第二喷射器（66,67）。旁通通道（97）将第一输送管（65）与第二输送管（97）连通，并且在旁通管（97）中设置止回阀（98），用于防止燃料从第二输送管（68）连接到第一输送管（65）。因此，有效地限制由高压泵的驱动引起的燃料压力脉动的传递，从而可以向发动机供应适量的燃料，以改善空燃比的控制。

3. 发明公开

EP2337937A2 LOW PRESSURE FEED PUMP CONTROL FOR A HIGH PRESSURE COMMON RAIL FUEL INJECTION SYSTEM 审中-公开
标题翻译： LOW高压泵控制的高压配电线燃油喷射
公开(公告)号：EP2337937A2
公开(公告)日：2011-06-29
申请号：EP09736474.9
申请日：2009-09-18
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： KOJIMA, susumu , SUGIMOTO, Tomojiro
IPC分类号： F02D41/30 , F02D41/24 , F02D41/06 , F02M37/10 , F02D41/38 , F02M59/20 , F02M63/02
CPC分类号： F02D41/3082 , F02D41/062 , F02D41/2448 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M37/10 , F02M59/366 , F02M63/025
摘要： In a fuel supply apparatus for an internal combustion engine, fuel is delivered to a high pressure fuel pump (7) driven by an internal combustion engine, using an electrically-operated low pressure fuel pump (6), and the fuel pressurized by the high pressure fuel pump (7) is supplied to the internal combustion engine. The fuel supply apparatus includes a low pressure pump control portion (42) that controls the low pressure fuel pump (6) to avoid a discharge failure in the high pressure fuel pump (7) due to insufficiency of a feed pressure at which the low pressure fuel pump (6) delivers the fuel to the high pressure fuel pump (7). The low pressure pump control portion (42) stops the low pressure fuel pump (6) in a case where the discharge failure in the high pressure fuel pump (7) is avoided even when the feed pressure is equal to a gauge pressure of 0.

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