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1. 发明授权

US09657701B2 Fuel injection nozzle 有权
公开(公告)号：US09657701B2
公开(公告)日：2017-05-23
申请号：US14802403
申请日：2015-07-17
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M61/18
CPC分类号： F02M61/1886 , F02M61/1833 , F02M61/1846 , F02M61/1893
摘要： A Laval shape is formed between the nozzle seat surface and needle tip portion. An injection hole also has the Laval shape. When the needle lift amount is small, a fuel flow velocity reaches an acoustic velocity in valve-opening portion. The fuel flow velocity further accelerated to a supersonic velocity at the Laval shape. When the needle lift amount is large, the fuel flows into the injection hole without a velocity decrease. Thus, the fuel flow velocity reaches the supersonic velocity at the Laval shape.

2. 发明授权

US09599078B2 Fuel supply device 有权
公开(公告)号：US09599078B2
公开(公告)日：2017-03-21
申请号：US14956652
申请日：2015-12-02
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M55/00 , F02M59/44 , F16N15/00 , F16J15/00 , F02M63/02
CPC分类号： F02M55/002 , F02M55/004 , F02M59/44 , F02M59/445 , F02M63/0215 , F16J15/004 , F16N15/00
摘要： A fuel supply device includes a leaked fuel collection unit and a check valve. When fuel passes through a first seal member to leak out from a cam chamber into an inter-seal space, the leaked fuel collection unit sucks in this fuel to extract the fuel from the inter-seal space, then pressurizes and returns the fuel to a fuel tank. The check valve prevents the fuel from flowing in reverse from the fuel tank to the inter-seal space. Accordingly, regardless of the pressure in the fuel tank and the pressure in the inter-seal space, fuel that leaks into the inter-seal space may be actively returned to the fuel tank. Further, the check valve prevents pressure in the fuel tank from acting on seal members. Accordingly, fuel that leaks into the inter-seal space may be collected into the fuel tank.

3. 发明授权

US09556843B2 Fuel injection nozzle 有权
标题翻译：燃油喷嘴
公开(公告)号：US09556843B2
公开(公告)日：2017-01-31
申请号：US14153559
申请日：2014-01-13
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M69/04 , F02M61/18 , F02M53/02 , F02M21/02
CPC分类号： F02M61/1806 , F02M21/0212 , F02M21/0248 , F02M53/02 , F02M61/1826 , F02M61/1833 , F02M61/184 , Y02T10/32
摘要： A fuel injection nozzle includes: a nozzle body having a plurality of injection holes; and a needle accommodated in the nozzle body to inject a DME fuel containing dimethyl ether as a main component. The nozzle body has a seat part to which the needle seated or from which the needle separated, and a tip end chamber arranged downstream of the seat part in a flow of the DME fuel to communicate with the plurality of injection holes. The DME fuel in the tip end chamber is heated with combustion heat in a combustion chamber of an internal combustion engine to have a supercritical state.
摘要翻译：燃料喷射喷嘴包括：具有多个喷射孔的喷嘴主体; 以及容纳在喷嘴体中的针，以注入含有二甲醚作为主要成分的DME燃料。所述喷嘴体具有所述针座所在的座部或所述针分离的座部，所述DME燃料的流动中配置有与所述多个喷射孔连通的前端室。在内燃机的燃烧室中，末端室中的DME燃料被燃烧热加热以具有超临界状态。

4. 发明授权

US10428777B2 Fuel injection device 有权
公开(公告)号：US10428777B2
公开(公告)日：2019-10-01
申请号：US15579328
申请日：2016-05-18
申请人： DENSO CORPORATION
发明人： Masaaki Kato , Takamasa Yokota
IPC分类号： F02M21/00 , F02M47/00 , F02M61/16 , F02D19/06 , F02M21/02 , F02M61/18 , F02M47/02 , F02M53/04 , F02D19/02 , F02M69/46
摘要： A fuel injection device that injects a liquefied gas fuel from an injection port to a combustion chamber of the internal combustion engine includes a passage forming member configured to define a fuel passage through which the liquefied gas fuel flows to the injection port, a temperature regulating unit configured to adjust a temperature of the liquefied gas fuel flowing through the fuel passage according to an operation state of the internal combustion engine, and a pressure regulating unit configured to adjust a pressure of the liquefied gas fuel flowing through the fuel passage according to the operation state of the internal combustion engine.

5. 发明授权

US10415520B2 Fuel supply device 有权
公开(公告)号：US10415520B2
公开(公告)日：2019-09-17
申请号：US15575496
申请日：2016-05-18
申请人： DENSO CORPORATION
发明人： Masaaki Kato , Hisaharu Takeuchi
IPC分类号： F02M37/00 , F02M55/00 , F02M21/02 , F02M31/14 , F02M37/04 , F02M37/06 , F02M37/08 , F02M53/02 , F02M55/04 , F02M37/18 , F02M55/02
摘要： A fuel supply device supplying a fuel stored in a fuel tank to an engine includes a low-pressure pump configured to feed the fuel, a high-pressure pump configured to compress the fuel discharged from the low-pressure pump and to feed to the engine, a first low-pressure passage member configured to define a first fuel passage from the low-pressure pump to the high-pressure pump, and a second low-pressure passage member configured to define a second fuel passage branched from the first fuel passage at a low-pressure junction portion and joining the first fuel passage at a low-pressure confluence portion, wherein the first fuel passage and the second fuel passage are different in at least one of (i) temperatures of the fuels that flow through the fuel passages and (ii) passage lengths of the fuel passages from the low-pressure junction portion to the low-pressure confluence portion.

6. 发明授权

US09644579B2 Fuel supply system 有权
公开(公告)号：US09644579B2
公开(公告)日：2017-05-09
申请号：US14790016
申请日：2015-07-02
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M37/04 , F02M31/02 , F02M39/00 , F02M21/02 , F02M21/06 , F02D19/02 , F02M53/02 , F02M53/06 , F02M59/10
CPC分类号： F02M31/02 , F02D19/022 , F02M21/0212 , F02M21/0245 , F02M21/06 , F02M39/005 , F02M53/02 , F02M53/06 , F02M59/102 , F02M2200/40 , F02M2200/953 , Y02T10/32
摘要： A fuel supply system has a pressure chamber which communicates with a fuel gallery. The pressure chamber receives the fuel from the feed pump or the returned fuel from the fuel gallery. The fuel in the pressure chamber receives heat energy from the engine E so that the fuel is brought into gas-liquid phase. A volume change of the fuel in liquid phase in the fuel gallery can be compensated by a volume change of the fuel in gas phase or gas-liquid phase in the pressure chamber. Thus, the pressure pulsation in the fuel gallery is absorbed in the pressure chamber.

7. 发明申请

US20160003199A1 FUEL SUPPLY SYSTEM 有权
标题翻译：燃油供应系统
公开(公告)号：US20160003199A1
公开(公告)日：2016-01-07
申请号：US14790016
申请日：2015-07-02
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M31/02 , F02M39/00
CPC分类号： F02M31/02 , F02D19/022 , F02M21/0212 , F02M21/0245 , F02M21/06 , F02M39/005 , F02M53/02 , F02M53/06 , F02M59/102 , F02M2200/40 , F02M2200/953 , Y02T10/32
摘要： A fuel supply system has a pressure chamber which communicates with a fuel gallery. The pressure chamber receives the fuel from the feed pump or the returned fuel from the fuel gallery. The fuel in the pressure chamber receives heat energy from the engine E so that the fuel is brought into gas-liquid phase. A volume change of the fuel in liquid phase in the fuel gallery can be compensated by a volume change of the fuel in gas phase or gas-liquid phase in the pressure chamber. Thus, the pressure pulsation in the fuel gallery is absorbed in the pressure chamber.
摘要翻译：燃料供给系统具有与燃料库连通的压力室。压力室从进料泵或来自燃料库的返回的燃料接收燃料。压力室中的燃料从发动机E接收热能，使得燃料进入气液相。可以通过在压力室中的气相或气液相中的燃料的体积变化来补偿燃料管道中液相中燃料的体积变化。因此，燃料通道中的压力脉动在压力室中被吸收。

8. 发明授权

US09212638B2 Fuel injection apparatus 有权
标题翻译：燃油喷射装置
公开(公告)号：US09212638B2
公开(公告)日：2015-12-15
申请号：US13966850
申请日：2013-08-14
申请人： DENSO CORPORATION
发明人： Masaaki Kato
IPC分类号： F02M51/00 , F02M39/00 , F02M55/04 , F02M59/36
CPC分类号： F02M39/005 , F02M55/04 , F02M59/368 , F02M2200/315 , F02M2200/40 , F02M2200/953
摘要： A liquefied gas fuel is supplied to a fuel gallery of a high-pressure pump through a feed pipe. A fuel injection apparatus includes a passage expansion pipe of which passage area is greater than that of the fuel gallery. The passage expansion pipe is arranged between the feed pipe and the fuel gallery. When the fuel is supplied to the fuel gallery during a suction stroke of a plunger, the passage expansion pipe functions as an accumulator accumulating the fuel therein. The replenishing fuel from the passage expansion pipe is added to the fuel supplied from the feed pump. A pressure drop in the fuel gallery becomes small, so that the pressure pulsation in the fuel gallery is reduced.
摘要翻译：液化气燃料通过进料管供给到高压泵的燃料管道。燃料喷射装置包括通道面积大于燃料管道的通道膨胀管。通道膨胀管布置在进料管和燃料通道之间。当在柱塞的吸入行程期间将燃料供应到燃料箱时，通道膨胀管用作在其中积聚燃料的蓄能器。来自通道膨胀管的补充燃料被添加到从进料泵供给的燃料中。燃料管道中的压降变小，燃料管道中的压力脉动降低。

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