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公开(公告)号：US20190195184A1
公开(公告)日：2019-06-27
申请号：US16322368
申请日：2017-06-28
发明人： Paulo Cesar PEREIRA DE OLIVEIRA , Guilherme BASTOS MACHADO , Tadeu CAVALCANTE CORDEIRO DE MELO , Marcelo LAURENTYS AIROLDI , Renata NOHRA CHAAR DE SOUZA , Flávio GOMES DEAS , Franck YVES TURKOVICS , Pedro Artur LIRA DA SILVA
CPC分类号： F02M65/001 , F02B75/12 , F02B77/04 , F02B77/08 , F02B2075/125 , F02D2041/389 , F02M65/00 , G01M15/05 , Y02T10/123
摘要： The invention relates to the technology of gasoline direct injection (GDI) in automotive engines. In this context, the invention provides a method for maximizing the formation of deposits in injector nozzles of GDI engines, said method including at least one test cycle, each test cycle including at least one testing step in which a predetermined condition of speed and load of the GDI engine is maintained for a specified period of time, wherein, in said cycle, in at least one testing step, the engine speed is maintained between 1300 and 3700 rpm, the engine load is maintained between 10 and 80% and the specified period of time is from 10 to 200 minutes. Thus, the method of the invention is able to reproduce severe conditions of deposition of material in a few days, so that, in a short period of time, the test fuel can be assessed for tendency to form deposits.
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公开(公告)号：US10077750B2
公开(公告)日：2018-09-18
申请号：US15411256
申请日：2017-01-20
CPC分类号： F02M61/1853 , F02B17/005 , F02B2023/103 , F02B2075/125 , F02M45/08 , F02M61/10 , F02M61/14 , F02M61/182 , F02M61/188 , F02M61/1886 , Y02T10/123
摘要： Systems and methods are provided for operation of fuel injectors within an applied-ignition, direct-injection internal combustion engine. In one example, a needle of a fuel injector is moved from a retracted position to an extended position relative to a plurality of injection holes of a nozzle of the fuel injector, with at least one injection hole being separated from a fuel supply system earlier than each other injection hole. In a partially retracted position, fuel flow along a first side of the needle is decreased relative to fuel flow along a second side of the needle.
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公开(公告)号：US20180128201A1
公开(公告)日：2018-05-10
申请号：US15864135
申请日：2018-01-08
申请人： Denso Corporation
发明人： Masahiro YOKOI , Hiroaki FUJII , Yusaku SUZUKI
IPC分类号： F02D41/40 , F02D13/02 , F02P5/15 , F02P5/04 , F02D37/02 , F02D41/00 , F02D41/06 , F02D41/30 , F02D15/04 , F02D41/38 , F02B75/12
CPC分类号： F02D41/402 , F02B2075/125 , F02D13/0219 , F02D13/0269 , F02D15/04 , F02D37/02 , F02D41/0062 , F02D41/068 , F02D41/3023 , F02D41/401 , F02D2041/389 , F02P5/045 , F02P5/1506 , Y02T10/123 , Y02T10/142 , Y02T10/18 , Y02T10/44 , Y02T10/46 , Y02T10/47
摘要： An engine (10) is a cylinder injection engine, and includes an injector (21) that directly injects a fuel into a combustion chamber (23), and an ignition plug (34) that generates an ignition spark in the combustion chamber (23). An ECU (40) performs multiple first injections to each produce an air-fuel mixture of a lean air-fuel ratio in the combustion chamber (23) before an ignition in one combustion cycle of the engine, and performs a second injection to produce an air-fuel mixture of a rich air-fuel ratio in the combustion chamber (23) before the ignition and after the first injection. In particular, the ECU implements the multiple first injections in such a manner that the first injection implemented early among the multiple first injections produces an air-fuel mixture leaner than that of the first injection implemented subsequently. The ECU implements the second injection only once immediately before an ignition timing.
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公开(公告)号：US20170248103A1
公开(公告)日：2017-08-31
申请号：US15595042
申请日：2017-05-15
发明人： Takehiro NISHIDONO , Junji TAKAI , Toshio YOKOYAMA
IPC分类号： F02M35/10 , F02M35/116
CPC分类号： F02M35/10177 , F02B33/38 , F02B75/22 , F02B2075/125 , F02D41/3094 , F02M35/10085 , F02M35/10157 , F02M35/10216 , F02M35/116 , F02M61/145 , F02M63/00 , F02M69/00 , F02M69/04 , F02M69/042 , F02M69/046 , Y02T10/123 , Y02T10/144
摘要： A cylinder block including: a plurality of cylinders; a cylinder head attached on the cylinder block and including, for each of the cylinders, an intake port extending from a combustion chamber upward and obliquely relative to an axis of the cylinder; a direct injector disposed at a position on an outer side of the intake port in a cylinder radial direction and directly injecting fuel into the combustion chamber; a port injector disposed at a position on a same side as the direct injector relative to the intake port, and injecting fuel into the intake port are provided. The intake port includes: a valve seat provided at an intake air inlet opened to the combustion chamber; and an arc portion protruding downward in a center area of the intake port on an upstream side of the valve seat, and an injection direction of the port injector is orientated in a direction in which the fuel injected from the port injector passes through a lower area of the arc portion.
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公开(公告)号：US09677467B2
公开(公告)日：2017-06-13
申请号：US14787975
申请日：2015-04-24
发明人： Tetsushi Achiwa , Keisuke Daikoku
IPC分类号： F02B75/00 , F02M35/116 , F02M35/16 , F02M61/14 , F02B61/04 , F02B75/22 , F02M55/02 , F02M35/108 , F02B23/08 , F02M69/04 , F02B1/04 , F02M35/10 , F02B75/12
CPC分类号： F02B75/007 , F02B1/04 , F02B23/08 , F02B61/045 , F02B75/22 , F02B2075/125 , F02M35/10045 , F02M35/10072 , F02M35/108 , F02M35/116 , F02M35/16 , F02M35/167 , F02M55/025 , F02M61/14 , F02M69/044 , Y02T10/123 , Y02T10/125
摘要： Even in the case where a crankshaft extends in a substantially vertical direction, it is possible to reduce a situation that sprays of fuel injected from injectors may adhere to inner wall surfaces of intake passages, and it is possible to make the fuel supply to combustion chambers stable. Provided is a vertical engine including: a pair of intake passages (911a and 911b) which are arranged in an up and down direction with the interposition of a central axis of a cylinder (241) therebetween; a pair of intake valves (41L1 and 41L2) which open and close the pair of intake passages; and fuel injectors (70L1 and 70L2) which inject fuel to the pair of intake passages; wherein: the fuel injectors are arranged so that fuel injection directions by the fuel injectors can go not toward valve stems (411) of the intake valves provided in the upper and lower intake passages respectively but toward the backs of valve heads of the intake valves on a central axis (C1) side of the cylinder and the fuel injectors are disposed so that a central axis (FC2) of injection of the fuel injector into the lower intake passage can be closer to the central axis side of the cylinder than a central axis (CF1) of injection of the fuel injector into the upper intake passage.
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6.发明授权公开(公告)号：US09587612B2
公开(公告)日：2017-03-07
申请号：US13985143
申请日：2012-02-20
申请人： Shusuke Akazaki , Yuji Yamamoto , Toshitaka Hachiro , Gaku Sato
发明人： Shusuke Akazaki , Yuji Yamamoto , Toshitaka Hachiro , Gaku Sato
CPC分类号： F02M69/00 , F02B23/104 , F02B2075/125 , F02D35/023 , F02M57/005 , F02M61/14 , F02M2200/247 , G01L23/10 , Y02T10/123 , Y02T10/125
摘要： An in-cylinder pressure detecting device of a direct injection type internal combustion engine is provided in which a ring-shaped pressure detection element (34) surrounding a fuel injection hole (33b) is provided in the vicinity of an extremity of an injector (20) that injects fuel into a combustion chamber. Since the pressure detection element is provided on the injector, not only is it unnecessary to change the shape or structure of the cylinder head or the combustion chamber in order to provide the pressure detection element, but it is also possible to cool the pressure detection element (34) by fuel passing through the inside of the injector to thus enhance the precision of pressure detection and the durability. Further, since the ring-shaped pressure detection element (34) surrounds the periphery of the fuel injection hole (33b), it is possible to maximize the dimensions of the pressure detection element (34) to thus further enhance the precision of pressure detection while avoiding interference between the pressure detection element (34) and fuel injected via the fuel injection hole (33b).
摘要翻译： 提供一种直喷式内燃机的缸内压力检测装置，其中，在喷射器（20）的末端附近设置围绕燃料喷射孔（33b）的环状压力检测元件（34） ）将燃料喷射到燃烧室中。 由于压力检测元件设置在喷射器上，为了提供压力检测元件，不仅不需要改变气缸盖或燃烧室的形状或结构，而且还可以将压力检测元件 （34）通过喷射器内部的燃料，从而提高压力检测的精度和耐久性。 此外，由于环状压力检测元件34围绕燃料喷射孔33b的周围，所以能够使压力检测元件34的尺寸最大化，能够进一步提高压力检测的精度， 避免压力检测元件（34）与经由燃料喷射孔（33b）喷射的燃料之间的干扰。
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7.再颁专利System for supply of LPG/ammonia for direct-injection petrol or diesel engines 有权用于直接喷射汽油或柴油发动机的LPG /氨供应系统公开(公告)号：USRE46229E1
公开(公告)日：2016-12-06
申请号：US14492989
申请日：2014-09-22
申请人： ICOMET SPA
发明人： Luciano Cippitani
IPC分类号： F02D41/00 , F02M43/00 , F02M21/02 , F02B47/04 , F02B43/10 , F02D19/08 , F02D19/06 , F02D19/10 , F02D41/38 , F02M37/00
CPC分类号： F02D41/0025 , F02B43/10 , F02B2275/14 , F02D19/0615 , F02D19/0644 , F02D19/0647 , F02D19/066 , F02D19/0684 , F02D19/0692 , F02D19/0694 , F02D19/085 , F02D19/10 , F02D2041/389 , F02M21/0215 , F02M37/0088 , Y02T10/123 , Y02T10/32 , Y02T10/36
摘要： A system for supply of LPG/ammonia for direct-injection petrol or diesel engine includes an electronic control unit where the control unit governs a petrol/diesel pump, a supplementary petrol/diesel pump, a petrol/diesel-delivery solenoid vale, LPG/ammonia-return solenoid valve, LPG/ammonia pump, a supplementary LPG/ammonia pump, a LPG/ammonia-delivery solenoid vale and a LPG/ammonia injector, such that only one of LPG/ammonia and petrol/diesel is fed to the engine at any point in time, and a combination of i) LPG and petrol, ii) LPG and diesel, iii) ammonia and petrol, and iv) ammonia and diesel is never fed to the engine.
摘要翻译： 用于直接喷射汽油或柴油发动机的液化石油气/氨的供应系统包括电子控制单元，控制单元控制汽油/柴油泵，补充汽油/柴油泵，汽油/柴油输送电磁阀，液化石油气/ 氨回流电磁阀，LPG /氨泵，辅助LPG /氨泵，液化石油气/氨输送电磁阀和LPG /氨喷射器，使得只有一种LPG /氨和汽油/柴油供给发动机 在任何时间点，以及i）LPG和汽油的组合，ii）LPG和柴油，iii）氨和汽油，以及iv）氨和柴油不会进料到发动机。
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公开(公告)号：US09410521B2
公开(公告)日：2016-08-09
申请号：US13946740
申请日：2013-07-19
发明人： Jianwen James Yi , Claudia Olivia Iyer , Steven Wooldridge , Gary Alan Coulson , David Bruce Reiche , Brad Alan VanDerWege
CPC分类号： F02M61/1806 , F02B23/104 , F02B23/105 , F02B2023/103 , F02B2075/125 , Y02T10/123 , Y02T10/125
摘要： A fuel injector having an injector axis, comprising a first nozzle aiming in a first radial direction; a first nozzle pair aiming in radial directions each equally angled relative to the first direction, closest to the first radial direction, and having a longest radial offset; a nozzle second pair in radial directions each equally angled relative to the first direction; and another nozzle aiming opposite the first radial direction and having a shortest radial offset.
摘要翻译： 一种具有喷射器轴线的燃料喷射器，包括瞄准第一径向的第一喷嘴; 瞄准径向的第一喷嘴对，其相对于第一方向各自相等成角度，最靠近第一径向方向，并且具有最长的径向偏移; 喷嘴第二对在径向方向上各自相对于第一方向成角度; 以及与第一径向相对的另一个喷嘴，并具有最短的径向偏移。
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公开(公告)号：US09394871B2
公开(公告)日：2016-07-19
申请号：US14115832
申请日：2012-04-26
申请人： Kay Schintzel , Lars Hentschel , Jörg Theobald , Andreas Thaysen , Feitse Ebus
发明人： Kay Schintzel , Lars Hentschel , Jörg Theobald , Andreas Thaysen , Feitse Ebus
CPC分类号： F02M61/1806 , F02B17/005 , F02B23/101 , F02B23/104 , F02B2023/103 , F02B2075/125 , F02D41/38 , F02D41/402 , F02D2041/389 , F02M61/1813 , F02M69/04 , Y02T10/123
摘要： When fuel is injected into a combustion chamber (2) of a cylinder (13) of an engine (30) of a vehicle (10), the fuel is injected in the form of multiple jets (3) with the aid of an injector (1). In this connection, a first plane is defined in which both the central axis (11) of the injector (1) and the central axis (12) of the cylinder (13) lie. Furthermore, a second plane is defined in which both the central axis (11) of the injector (1) and the surface normal of the first plane lie. The jets (3) are generated in such a way that for each jet pair, which is formed from two of the jets (3), an angle between the projections of the two central axes of the two jets of the jet pair into the second plane is smaller than 50°.
摘要翻译： 当燃料被喷射到车辆（10）的发动机（30）的气缸（13）的燃烧室（2）中时，借助于喷射器（3）将燃料以多个喷嘴（3）的形式喷射 1）。 在这方面，限定了喷射器（1）的中心轴线（11）和气缸（13）的中心轴线（12）两者的第一平面。 此外，定义了第二平面，其中喷射器（1）的中心轴线（11）和第一平面的表面法线都位于其中。 喷射器（3）以这样的方式产生：对于由两个射流（3）形成的每个喷射对，喷射对的两个射流的两个中心轴线的突起之间的角度进入第二 平面小于50°。
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公开(公告)号：US09316161B2
公开(公告)日：2016-04-19
申请号：US14243615
申请日：2014-04-02
IPC分类号： F02B3/00 , F02D33/00 , F02D41/30 , F02D41/38 , F02M63/02 , F02M43/00 , F02M43/02 , F02M69/04 , F02D19/06 , F02D19/08 , F02B23/10 , F02B1/12 , F02B75/12 , F02B3/06
CPC分类号： F02D33/003 , F02B1/12 , F02B3/06 , F02B23/104 , F02B2075/125 , F02B2275/14 , F02D19/0605 , F02D19/0628 , F02D19/0684 , F02D19/0689 , F02D19/0692 , F02D19/084 , F02D41/3094 , F02D41/3863 , F02D2041/3881 , F02D2200/101 , F02D2250/31 , F02M43/00 , F02M43/02 , F02M63/029 , F02M69/046 , Y02T10/123 , Y02T10/36
摘要： Methods are provided for operating a high pressure fuel pump to maintain one or more selectable, mechanically-regulated pressures. To reduce the cost and complexity associated with a fuel system that involves both port and direct fuel injection, a fuel and pump system is needed that removes complicated electronic control without degrading pump and engine performance. High pressure fuel pumps, associated systems, and methods are provided that involve adding one or more pressure relief valves and solenoid valves in order to maintain one or more discrete, substantially constant pressures of the high pressure fuel pumps and attached direct injection fuel rails.
摘要翻译： 提供了用于操作高压燃料泵以维持一个或多个可选择的机械调节压力的方法。 为了降低涉及端口和直接燃料喷射的燃料系统所需的成本和复杂性，需要一种消除复杂电子控制而不降低泵和发动机性能的燃料和泵系统。 提供了高压燃料泵，相关系统和方法，其涉及添加一个或多个压力释放阀和电磁阀，以便保持高压燃料泵和附接的直接喷射燃料导轨的一个或多个离散的，基本恒定的压力。
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