CN105658948A - Fuel supply device - Google Patents
Fuel supply device Download PDFInfo
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- CN105658948A CN105658948A CN201480057756.8A CN201480057756A CN105658948A CN 105658948 A CN105658948 A CN 105658948A CN 201480057756 A CN201480057756 A CN 201480057756A CN 105658948 A CN105658948 A CN 105658948A
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- 239000000446 fuel Substances 0.000 title claims abstract description 185
- 239000002828 fuel tank Substances 0.000 claims abstract description 7
- 230000010349 pulsation Effects 0.000 claims description 42
- 230000001105 regulatory effect Effects 0.000 claims 2
- HOWHQWFXSLOJEF-MGZLOUMQSA-N systemin Chemical compound NCCCC[C@H](N)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(O)=O)C(=O)OC(=O)[C@@H]1CCCN1C(=O)[C@H]1N(C(=O)[C@H](CC(O)=O)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H]2N(CCC2)C(=O)[C@H]2N(CCC2)C(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@@H](NC(=O)[C@H](C)N)C(C)C)CCC1 HOWHQWFXSLOJEF-MGZLOUMQSA-N 0.000 claims 1
- 108010050014 systemin Proteins 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 35
- 239000007924 injection Substances 0.000 abstract description 35
- 230000000052 comparative effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
- F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
一种燃料供给装置，具备：输出管，其将从燃料箱供给的燃料分配到多个燃料喷射阀；以及与输出管连接的连接配管，其内部与该输出管内连通并具有自由端。该连接配管的自由端被闭塞。
A fuel supply device includes: an delivery pipe for distributing fuel supplied from a fuel tank to a plurality of fuel injection valves; and a connection pipe connected to the delivery pipe, the inside of which communicates with the delivery pipe and has a free end. The free end of the connecting pipe is blocked.
Description
技术领域technical field
本发明涉及向燃料喷射阀供给燃料的燃料供给装置。The present invention relates to a fuel supply device for supplying fuel to a fuel injection valve.
背景技术Background technique
这种燃料供给装置具备输出管，该输出管将燃料分配到多个燃料喷射阀。并且，在内燃机运转时，燃料喷射阀的开阀动作和闭阀动作反复地进行。由于这样的燃料喷射阀的动作，在输出管内燃料压力产生脉动。在这样的输出管内的燃料压力产生较大的脉动的状态下从燃料喷射阀喷射燃料时，一次的燃料喷射量容易产生偏差。Such a fuel supply device includes an outlet pipe that distributes fuel to a plurality of fuel injection valves. Furthermore, when the internal combustion engine is running, the fuel injection valve is repeatedly opened and closed. Due to the operation of such a fuel injection valve, the fuel pressure in the delivery pipe pulsates. When the fuel is injected from the fuel injection valve in a state where the fuel pressure in the delivery pipe fluctuates greatly, the fuel injection amount at one time tends to vary.
在专利文献1中记载了一种抑制这样的输出管内的燃料压力的脉动的方法。也就是说，该文献1所记载的燃料供给装置具备与输出管连接的风门装置。该风门装置具有自由伸缩的波纹管，在该波纹管内密封有气体。另外，将输出管内的体积与在风门装置内能够存储燃料的体积的总和还称为“总体积”。Patent Document 1 describes a method of suppressing such pulsation of the fuel pressure in the delivery pipe. That is, the fuel supply device described in this document 1 includes a damper device connected to the delivery pipe. The damper device has a freely expandable bellows, and gas is sealed in the bellows. In addition, the sum of the volume in the output pipe and the volume capable of storing fuel in the damper device is also referred to as "total volume".
并且，在通过燃料喷射阀的开阀而喷射燃料时，波纹管伸长使得上述的总体积变窄，从而抑制输出管内的燃料压力的降低。相对于此，在燃料喷射阀闭阀时，波纹管收缩而使得上述的总体积变宽，从而抑制输出管内的燃料压力的过度上升。因此，通过这样的波纹管的伸缩动作，输出管内的燃料压力的脉动被降低。由此，抑制来自燃料喷射阀的燃料喷射量的偏差。Furthermore, when fuel is injected by opening the fuel injection valve, the bellows expands to narrow the above-mentioned total volume, thereby suppressing a drop in fuel pressure in the delivery pipe. In contrast, when the fuel injection valve is closed, the bellows contracts to widen the above-mentioned total volume, thereby suppressing an excessive increase in fuel pressure in the delivery pipe. Therefore, the pulsation of the fuel pressure in the delivery pipe is reduced by such expansion and contraction of the bellows. Thereby, variation in the fuel injection amount from the fuel injection valve is suppressed.
现有技术文献prior art literature
专利文献patent documents
专利文献1：日本特开平9-310661号公报Patent Document 1: Japanese Patent Application Laid-Open No. 9-310661
发明内容Contents of the invention
发明所要解决的课题The problem to be solved by the invention
但是，与输出管连接的风门装置的构成较为复杂。因此，在专利文献1所记载的燃料供给装置中，虽然能够降低输出管内的燃料压力的脉动，但是可能会造成制造成本的增加。However, the configuration of the damper device connected to the output pipe is relatively complicated. Therefore, in the fuel supply device described in Patent Document 1, although the pulsation of the fuel pressure in the delivery pipe can be reduced, it may cause an increase in manufacturing cost.
本发明的目的为在于提供一种，能够通过简单的构成降低起因于燃料喷射阀的动作的输出管内的燃料压力的脉动的燃料供给装置。An object of the present invention is to provide a fuel supply device capable of reducing pulsation of fuel pressure in an delivery pipe caused by the operation of a fuel injection valve with a simple configuration.
用于解决课题的手段means to solve the problem
用于达成上述目的一个方式提供一种燃料供给装置，其具备：输出管，其将从燃料箱供给的燃料分配到多个燃料喷射阀；以及与所述输出管连接的连接配管，其内部与该输出管内连通并具有自由端，该连接配管的自由端被闭塞。One aspect for achieving the above object provides a fuel supply device including: an output pipe for distributing fuel supplied from a fuel tank to a plurality of fuel injection valves; The output pipe communicates internally and has a free end, and the free end of the connecting pipe is blocked.
用于达成上述目的的另一个方式提供一种燃料供给装置，其具备：输出管，其将从燃料箱供给的燃料分配到多个燃料喷射阀；与所述输出管连接的连接配管，其内部与该输出管内连通并具有固定端以及自由端；以及支承部，其对作为所述连接配管的所述固定端与所述自由端之间的部位的中途部位进行支承，所述连接配管的所述自由端被闭塞。Another mode for achieving the above object provides a fuel supply device including: an output pipe that distributes fuel supplied from a fuel tank to a plurality of fuel injection valves; communicating with the output pipe and having a fixed end and a free end; The free end is blocked.
附图说明Description of drawings
图1是示出第1实施方式的燃料供给装置和内燃机的示意图。FIG. 1 is a schematic diagram showing a fuel supply device and an internal combustion engine according to a first embodiment.
图2是示意性地示出第1燃料供给装置中的输出管与连接配管的连接部位的剖视图。Fig. 2 is a cross-sectional view schematically showing a connecting portion of an output pipe and a connecting pipe in the first fuel supply device.
图3(a)是示出比较例的燃料供给装置的局部概要的示意图、(b)是概要地示出第1实施方式的燃料供给装置的局部的示意图、(c)是示出脉动的一次分量的发生状态的图，(d)是示出脉动的二次分量的发生状态的图。3( a ) is a schematic diagram showing a partial outline of a fuel supply device of a comparative example, (b) is a schematic diagram schematically showing a part of a fuel supply device according to a first embodiment, and (c) is a schematic diagram showing a pulsation. The diagram of the generation state of the component, (d) is a diagram showing the generation state of the secondary component of the pulsation.
图4是示出第2实施方式的燃料供给装置中的输出管和连接配管以及配置在其周围的部件的立体图。4 is a perspective view showing an output pipe, a connection pipe, and components arranged around them in the fuel supply device according to the second embodiment.
图5是示意性地示出第2实施方式的燃料供给装置中的输出管和连接配管的连接部位的剖视图。5 is a cross-sectional view schematically showing a connecting portion of an output pipe and a connecting pipe in a fuel supply device according to a second embodiment.
图6是示出第2实施方式的燃料供给装置中的第1支承部的侧视图。6 is a side view showing a first support portion in the fuel supply device according to the second embodiment.
图7是示出第2实施方式的燃料供给装置中的第1支承部的俯视图。7 is a plan view showing a first support portion in the fuel supply device according to the second embodiment.
图8是示出第2实施方式的燃料供给装置中的支承部件的仰视图。8 is a bottom view showing a support member in the fuel supply device according to the second embodiment.
具体实施方式detailed description
(第1实施方式)(first embodiment)
以下，按照图1-图3(d)说明将燃料供给装置具体化的第1实施方式。Hereinafter, a first embodiment in which a fuel supply device is embodied will be described with reference to FIGS. 1 to 3( d ).
图1示出将作为气体燃料的一个例子的压缩天然气体(CNG)供给至内燃机11的燃料供给装置20、以及通过供给CNG而运转的内燃机11。如图1所示，在内燃机11的进气通道12设置有根据驾驶者的油门操作方式调整其开度的节流阀13、以及喷射从燃料供给装置20供给的CNG的燃料喷射阀14。并且，在气筒15内的燃烧室16燃烧由通过节流阀13的进气和从燃料喷射阀14喷射的CNG而形成的混合气，而使活塞17进行往返移动，使得作为内燃机11的输出轴的曲柄轴向预定的旋转方向旋转。FIG. 1 shows a fuel supply device 20 that supplies compressed natural gas (CNG) as an example of a gaseous fuel to an internal combustion engine 11 , and the internal combustion engine 11 operated by supplying CNG. As shown in FIG. 1 , an intake passage 12 of an internal combustion engine 11 is provided with a throttle valve 13 whose opening is adjusted according to the driver's accelerator operation method, and a fuel injection valve 14 which injects CNG supplied from a fuel supply device 20 . And, the combustion chamber 16 in the gas cylinder 15 burns the air-fuel mixture formed by the intake air passing through the throttle valve 13 and the CNG injected from the fuel injection valve 14, so that the piston 17 moves back and forth, so that it acts as the output shaft of the internal combustion engine 11. The crankshaft rotates in a predetermined direction of rotation.
在燃料供给装置20设置有与作为贮留CNG的燃料箱的一个例子的CNG箱21连接的高压燃料配管22。在该高压燃料配管22内流动的CNG被作为调整机构的一个例子的压力调整器23减压为规定的燃料压力，并且减压后的CNG被供给至输出管24。另外，压力调整器23被支承在车身。The fuel supply device 20 is provided with a high-pressure fuel pipe 22 connected to a CNG tank 21 as an example of a fuel tank storing CNG. The CNG flowing in the high-pressure fuel pipe 22 is depressurized to a predetermined fuel pressure by a pressure regulator 23 , which is an example of an adjustment mechanism, and the decompressed CNG is supplied to the delivery pipe 24 . In addition, the pressure regulator 23 is supported by the vehicle body.
在输出管24连接有多个燃料喷射阀14。并且，这些燃料喷射阀14构成为将从输出管24分配的CNG喷射到进气通道12内。A plurality of fuel injection valves 14 are connected to the output pipe 24 . Furthermore, these fuel injection valves 14 are configured to inject CNG distributed from the delivery pipe 24 into the intake passage 12 .
在这样的输出管24的一端(图中右端)连接有从压力调整器23延伸的供给管25，并且在输出管24的另一端(图中左端)连接有连接配管26。该连接配管26的粗度细于输出管24。连接配管26的一端(固定端)被固定在输出管24，连接配管26的另一端(自由端)被闭塞。也就是说，连接配管26悬臂地支承在输出管24。A supply pipe 25 extending from the pressure regulator 23 is connected to one end (right end in the figure) of such an output pipe 24 , and a connecting pipe 26 is connected to the other end (left end in the figure) of the output pipe 24 . The connecting pipe 26 is thinner than the output pipe 24 . One end (fixed end) of the connection pipe 26 is fixed to the delivery pipe 24, and the other end (free end) of the connection pipe 26 is closed. That is, the connection pipe 26 is supported by the output pipe 24 in a cantilevered manner.
在这样的连接配管26内与输出管24内连通。因此，CNG能够在连接配管26内和输出管24内流通。The inside of such a connection pipe 26 communicates with the inside of the output pipe 24 . Therefore, CNG can flow through the connecting pipe 26 and the delivery pipe 24 .
如图2所示，在连接配管26与输出管24的连接部位设置有节流部27。该节流部27的开口小于连接配管26的开口。As shown in FIG. 2 , a throttle portion 27 is provided at a connection portion between the connection pipe 26 and the output pipe 24 . The opening of the throttle portion 27 is smaller than the opening of the connecting pipe 26 .
但是，输出管24内的燃料压力若燃料喷射阀14被开阀则降低，若燃料喷射阀14被闭阀则上升。因此，在具备输出管24的燃料供给装置20内，通过燃料喷射阀14的开阀和闭阀反复地进行，从而产生燃料压力的脉动。However, the fuel pressure in the delivery pipe 24 decreases when the fuel injection valve 14 is opened, and increases when the fuel injection valve 14 is closed. Therefore, in the fuel supply device 20 including the delivery pipe 24 , the fuel injection valve 14 is repeatedly opened and closed to generate pulsation in the fuel pressure.
在这样的燃料供给装置20内的燃料压力的脉动包括各种频率的正常波。在此，燃料供给装置20内的燃料压力的脉动的频率分量中的最低频率的正常波称为“脉动的一次分量”，将第2个低频率的正常波称为“脉动的二次分量”。并且，相对于在输出管24连接有连接配管26的本实施方式的燃料供给装置20，将在输出管24没有连接连接配管的燃料供给装置称为“比较例的燃料供给装置”。The pulsation of fuel pressure in such a fuel supply device 20 includes normal waves of various frequencies. Here, among the frequency components of pulsation of the fuel pressure in the fuel supply device 20 , the normal wave with the lowest frequency is called "the primary component of the pulsation", and the normal wave with the second lowest frequency is called the "secondary component of the pulsation". . In addition, a fuel supply device not connected to the delivery pipe 24 with respect to the fuel supply device 20 of the present embodiment in which the connection pipe 26 is connected to the delivery pipe 24 is referred to as a "comparative example fuel supply device".
接着，参照图3(a)-图3(d)说明在燃料供给装置内产生的燃料压力的脉动的一次分量和二次分量的发生状态。另外，图3(a)是示出比较例的燃料供给装置100的局部的概要的示意图，图3(b)是示出本实施方式的燃料供给装置20的局部的概要的示意图。另外，图3(c)是示出在燃料供给装置内的燃料压力脉动的一次分量的发生状态的图，图3(d)是示出在燃料供给装置内的燃料压力脉动的二次分量的发生状态的图。Next, the generation state of the primary component and the secondary component of the fuel pressure pulsation generated in the fuel supply device will be described with reference to FIGS. 3( a ) to 3 ( d ). 3( a ) is a schematic diagram showing a partial outline of a fuel supply device 100 of a comparative example, and FIG. 3( b ) is a schematic diagram showing a partial outline of a fuel supply device 20 according to this embodiment. In addition, FIG. 3( c ) is a diagram showing the occurrence state of the primary component of the fuel pressure pulsation in the fuel supply device, and FIG. 3( d ) is a diagram showing the secondary component of the fuel pressure pulsation in the fuel supply device. A diagram of the occurrence state.
如图3(a)-图3(d)所示，在本实施方式的燃料供给装置20以及比较例的燃料供给装置100中，压力调整器23被固定在车身上。因此，即使是任意一个燃料供给装置20、100，压力调整器23成为在燃料供给装置20内的燃料压力的脉动的一次分量以及二次分量的波节。As shown in FIGS. 3( a ) to 3 ( d ), in the fuel supply device 20 of the present embodiment and the fuel supply device 100 of the comparative example, the pressure regulator 23 is fixed to the vehicle body. Therefore, the pressure regulator 23 becomes a node of the primary component and the secondary component of the pulsation of the fuel pressure in the fuel supply device 20 even in either of the fuel supply devices 20 and 100 .
在比较例的燃料供给装置100中，燃料供给装置20内的燃料压力脉动的一次分量的波腹M设定为输出管24的顶端(图中右端)。相对于此，在本实施方式的燃料供给装置20中，在燃料供给装置20内的燃料压力脉动的一次分量的波腹M设定为连接配管26的顶端(图中右端)。也就是说，本实施方式的燃料供给装置20相比于比较例的燃料供给装置100，燃料供给装置20内的燃料压力脉动的一次分量的波腹M从与输出管24连接的燃料喷射阀14离开。因此，在本实施方式的燃料供给装置20的输出管24内，与比较例的燃料供给装置100相比，起因于在燃料供给装置20内的燃料压力脉动的一次分量的燃料压力的变动幅度变窄。In the fuel supply device 100 of the comparative example, the antinode M of the primary component of the fuel pressure pulsation in the fuel supply device 20 is set to the tip (right end in the drawing) of the output pipe 24 . In contrast, in the fuel supply device 20 of the present embodiment, the antinode M of the first-order component of the fuel pressure pulsation in the fuel supply device 20 is set to the tip (right end in the drawing) of the connecting pipe 26 . That is, in the fuel supply device 20 of the present embodiment, the antinode M of the first-order component of the fuel pressure pulsation in the fuel supply device 20 is transmitted from the fuel injection valve 14 connected to the output pipe 24 , compared to the fuel supply device 100 of the comparative example. leave. Therefore, in the delivery pipe 24 of the fuel supply device 20 of the present embodiment, compared with the fuel supply device 100 of the comparative example, the fluctuation range of the fuel pressure due to the primary component of the fuel pressure pulsation in the fuel supply device 20 becomes smaller. narrow.
在本实施方式的燃料供给装置20中，通过对连接配管26的粗度、长度或者这两者进行调整，能够将在燃料供给装置20内的燃料压力脉动的二次分量的波节B设定为输出管24。将波节B设定为输出管24是指使波节B位于输出管24的长度范围内的任意的位置。在这种情况在下，在输出管24内几乎不产生起因于燃料供给装置20的燃料压力脉动的二次分量的燃料压力的变动。与此相比，在比较例的燃料供给装置100中，将燃料供给装置20内的燃料压力脉动的二次分量的波节B设定为输出管24内是困难的。也就是说，燃料供给装置20内的燃料压力脉动的二次分量的波节B设定在从与输出管24连接的燃料喷射阀14离开的位置。因此，在输出管24内，起因于燃料供给装置20内的燃料压力脉动的二次分量而使得燃料压力产生较大地变动。In the fuel supply device 20 of the present embodiment, the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 can be set by adjusting the thickness, length, or both of the connecting pipe 26 . It is the output pipe 24. Setting the node B as the output pipe 24 means that the node B is located at an arbitrary position within the length range of the output pipe 24 . In this case, there is almost no variation in the fuel pressure due to the secondary component of the fuel pressure pulsation of the fuel supply device 20 in the delivery pipe 24 . In contrast, in the fuel supply device 100 of the comparative example, it is difficult to set the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 in the output pipe 24 . That is, the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 is set at a position away from the fuel injection valve 14 connected to the output pipe 24 . Therefore, in the delivery pipe 24 , the fuel pressure largely fluctuates due to the secondary component of the fuel pressure pulsation in the fuel supply device 20 .
在本实施方式的燃料供给装置20的输出管24内，与比较例的燃料供给装置100相比，基于燃料供给装置20内的燃料压力脉动的一次分量以及二次分量的燃料压力的变动幅度变窄。因此，在从燃料喷射阀14喷射CNG时，起因于输出管24内的燃料压力的变动的喷射量的偏差被抑制。并且，通过降低输出管24内的燃料压力的脉动，从而降低输出管24自身的振动。其结果，起因于该输出管24的振动的异响的发生也被抑制。In the output pipe 24 of the fuel supply device 20 of the present embodiment, compared with the fuel supply device 100 of the comparative example, the fluctuation range of the fuel pressure based on the primary component and the secondary component of the fuel pressure pulsation in the fuel supply device 20 becomes smaller. narrow. Therefore, when CNG is injected from the fuel injection valve 14 , variations in the injection amount due to fluctuations in the fuel pressure in the delivery pipe 24 are suppressed. Furthermore, by reducing the pulsation of the fuel pressure in the delivery pipe 24, the vibration of the delivery pipe 24 itself is reduced. As a result, the occurrence of abnormal noise due to the vibration of the output pipe 24 is also suppressed.
以上，根据上述构成以及作用，能够得到如下示出的效果。As mentioned above, according to the said structure and operation|movement, the effect shown below can be acquired.
(1)燃料供给装置20内的燃料压力脉动的一次分量的波腹M位于连接配管26的顶端(自由端)，从而能够使脉动的一次分量的波腹M从与输出管24连接的燃料喷射阀14离开。并且，能够通过对连接配管的粗度、长度或者这两者进行调整，使得燃料供给装置20内的燃料压力脉动的二次分量的波节B接近与输出管24连接的燃料喷射阀14。其结果，与比较例的燃料供给装置100相比，能够将在输出管24内的燃料压力的变动幅度设定为较窄。而且，这样的连接配管与风门装置相比构成简单，能够比该风门装置更容易地组装于输出管24。因此，能够通过简单的构成，降低输出管24内的燃料压力的脉动。(1) The antinode M of the primary component of the fuel pressure pulsation in the fuel supply device 20 is located at the top end (free end) of the connecting pipe 26, so that the antinode M of the primary component of the pulsation can be injected from the fuel connected to the output pipe 24. Valve 14 is off. Furthermore, the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 can be brought close to the fuel injection valve 14 connected to the output pipe 24 by adjusting the thickness, length, or both of the connecting pipe. As a result, the fluctuation range of the fuel pressure in the delivery pipe 24 can be narrowed compared with the fuel supply device 100 of the comparative example. Furthermore, such a connecting pipe has a simpler structure than the damper device, and can be assembled to the output pipe 24 more easily than this damper device. Therefore, the pulsation of the fuel pressure in the delivery pipe 24 can be reduced with a simple configuration.
并且，通过以这样的方式降低输出管24内的燃料压力的脉动，从而能够抑制燃料喷射阀14的燃料喷射量的偏差。并且，由于输出管24自身的振动被降低，所以起因于输出管24的振动的异向的发生也被抑制。In addition, by reducing the pulsation of the fuel pressure in the delivery pipe 24 in this way, it is possible to suppress the variation in the fuel injection amount of the fuel injection valve 14 . In addition, since the vibration of the output pipe 24 itself is reduced, the occurrence of anomalies due to the vibration of the output pipe 24 is also suppressed.
(2)通过将节流部27设置在输出管24与连接配管26的连接部位，从而能够将输出管24内的燃料压力的变动幅度设定为较窄。(2) By providing the throttle portion 27 at the connection portion between the delivery pipe 24 and the connecting pipe 26 , it is possible to narrow the fluctuation range of the fuel pressure in the delivery pipe 24 .
(第2实施方式)(second embodiment)
接着，按照图4-图8说明第2实施方式。第2实施方式与第1实施方式的不同点在于具有对连接配管26进行支承的构成等。因此，在以下的说明中，以与第1实施方式不同的部分为主进行说明，针对与第1实施方式同样的部件构成赋予同样的并省略重复说明。Next, a second embodiment will be described with reference to FIGS. 4 to 8 . The second embodiment differs from the first embodiment in that it has a configuration for supporting the connecting pipe 26 , and the like. Therefore, in the following description, the part which differs from 1st Embodiment is mainly demonstrated, and the same component structure as 1st Embodiment is given the same thing, and repeated description is abbreviate|omitted.
如图4所示，在本实施方式的燃料供给装置20A中，多个燃料喷射阀14通过盖31而被支承在输出管24。并且，该盖31使用多个紧固用螺栓32连接在输出管24。As shown in FIG. 4 , in a fuel supply device 20A according to the present embodiment, a plurality of fuel injection valves 14 are supported by a delivery pipe 24 via a cover 31 . In addition, the cover 31 is connected to the output pipe 24 using a plurality of fastening bolts 32 .
在盖31内形成有与燃料喷射阀14相同数量的贯穿孔，在燃料喷射阀14上作为喷射CNG的喷射部的顶端部分别配置在对应的贯穿孔内。并且，在各个贯穿孔内压入有连接管311的长度方向上的一端。在这些连接管311连接有未予图示的燃料管。这样的燃料管连接在进气通道12。也就是说，从燃料喷射阀14的喷射部喷射的CNG通过盖31内的贯穿孔、燃料管内以及进气通道12而被供给至燃烧室16内。The same number of through holes as the fuel injection valves 14 are formed in the cover 31 , and the tip portions of the fuel injection valve 14 as injection parts for injecting CNG are respectively arranged in the corresponding through holes. In addition, one end of the connection pipe 311 in the longitudinal direction is press-fitted into each through hole. Fuel pipes (not shown) are connected to these connection pipes 311 . Such a fuel pipe is connected to the intake passage 12 . That is, the CNG injected from the injection portion of the fuel injection valve 14 is supplied into the combustion chamber 16 through the through hole in the cover 31 , the inside of the fuel pipe, and the intake passage 12 .
在本实施方式中，连接配管26的基端(固定端)与凸缘35形成为一体，连接配管26通过凸缘35与输出管24连接。另外，凸缘35由板材构成，并使用固定用螺栓36而固定在输出管24。In this embodiment, the base end (fixed end) of the connection pipe 26 is integrally formed with the flange 35 , and the connection pipe 26 is connected to the output pipe 24 through the flange 35 . In addition, the flange 35 is made of a plate material, and is fixed to the delivery pipe 24 using fixing bolts 36 .
如图5所示，在凸缘35设置有连通孔35a，该连通孔35a连通输出管24内和连接配管26内。因此，即使采用通过凸缘35将连接配管26与输出管24连接的构成，连接配管26内也与输出管24内连通。As shown in FIG. 5 , the flange 35 is provided with a communication hole 35 a that communicates the inside of the delivery pipe 24 and the inside of the connecting pipe 26 . Therefore, even with the configuration in which the connecting pipe 26 and the delivery pipe 24 are connected via the flange 35 , the inside of the connecting pipe 26 communicates with the inside of the delivery pipe 24 .
顺便地讲一下，如图4所示，连接配管26在其中途弯曲，连接配管26的顶端(自由端)位于被支承在输出管24的盖31的附近。另外，将在连接配管26上弯曲的部位称为“弯曲部位261”。Incidentally, as shown in FIG. 4 , the connection pipe 26 is bent in the middle, and the tip (free end) of the connection pipe 26 is located near the cover 31 supported by the output pipe 24 . In addition, the portion bent on the connection pipe 26 is referred to as a "bent portion 261".
如图6以及图7所示，凸缘35具有对连接配管26进行支承的第1支承部351。该第1支承部351的顶端安装于在连接配管26上位于比弯曲部位261更靠向顶端的位置的部位(中途部位中的一个例子)。也就是说，第1支承部351对连接配管26的基端和顶端之间的部位进行支承。As shown in FIGS. 6 and 7 , the flange 35 has a first support portion 351 that supports the connecting pipe 26 . The distal end of the first support portion 351 is attached to a portion (an example of an intermediate portion) located closer to the distal end than the bent portion 261 on the connection pipe 26 . That is, the first support portion 351 supports a portion between the proximal end and the distal end of the connecting pipe 26 .
如图4以及图8所示，在对输出管24进行支承的盖31连接有作为第2支承部的一个例子的支承部件40，该支承部件40对连接配管26进行支承。该支承部件40由大致矩形的板材构成。并且，支承部件40的一端通过螺栓41被固定在盖31，支承部件40的另一端安装于在连接配管26上位于比被第1支承部351支承的部位更靠向顶端的位置的部位。也就是说，支承部件40对在连接配管26上位于由第1支承部351支承的中途部位与连接配管26的自由端之间的部位进行支承。As shown in FIGS. 4 and 8 , a support member 40 as an example of a second support portion is connected to the cover 31 that supports the delivery pipe 24 , and the support member 40 supports the connection pipe 26 . The support member 40 is formed of a substantially rectangular plate. Also, one end of the support member 40 is fixed to the cover 31 with a bolt 41 , and the other end of the support member 40 is attached to a position on the connection pipe 26 that is closer to the tip than the position supported by the first support portion 351 . That is, the support member 40 supports a portion located between the intermediate portion supported by the first support portion 351 and the free end of the connection pipe 26 on the connection pipe 26 .
以上，根据上述构成，除了上述第1实施方式的效果(1)之外，能够进一步得到如下示出的效果。As mentioned above, according to the said structure, in addition to the effect (1) of the said 1st Embodiment, the following effect can be acquired further.
(3)连接配管26的中途部位由第1支承部351支承。因此，连接配管26以悬臂支承的方式与支承输出管24连接的情况相比，不容易使连接配管26产生振动，并能够降低施加到连接配管26的基端的应力。因此，能够降低作用于连接配管26的基端的负荷。(3) The intermediate portion of the connection pipe 26 is supported by the first support portion 351 . Therefore, the connection pipe 26 is less likely to vibrate and the stress applied to the proximal end of the connection pipe 26 can be reduced compared to a case where the connection pipe 26 is connected to the support output pipe 24 in a cantilevered manner. Therefore, the load acting on the proximal end of the connecting pipe 26 can be reduced.
(4)另外，这样的第1支承部351与凸缘35形成为一体。因此，第1支承部351与凸缘35分别设置的情况相比，能够抑制部件数量的增加。(4) In addition, such a first support portion 351 is integrally formed with the flange 35 . Therefore, compared with the case where the flanges 35 are separately provided, the first support portion 351 can suppress an increase in the number of parts.
(5)在本实施方式中，在连接配管26上与由第1支承部351支承的部位不同的部位被支承部件40支承。通过如此在多个位置对连接配管26进行支承，从而能够增加施加到连接配管26的基端的应力的降低效果。因此，能够实现作用于连接配管26的基端的负荷的进一步降低。(5) In the present embodiment, a location different from the location supported by the first support portion 351 on the connection pipe 26 is supported by the support member 40 . By supporting the connection pipe 26 at a plurality of positions in this way, it is possible to increase the effect of reducing the stress applied to the proximal end of the connection pipe 26 . Therefore, it is possible to further reduce the load acting on the proximal end of the connecting pipe 26 .
另外，上述各实施方式也可以以如下的方式进行变更。In addition, each of the above-mentioned embodiments may be modified as follows.
·在上述第2实施方式中，只要具备第1支承部351，也可以不设置支承部件40。即使是在这样的情况下，也能够得到与上述(3)同样的效果。- In the above-mentioned second embodiment, as long as the first support portion 351 is provided, the support member 40 may not be provided. Even in such a case, the same effect as that of (3) above can be obtained.
·在上述第2实施方式中，支承部件40也可以对连接配管26的顶端进行支承。- In the above-mentioned second embodiment, the support member 40 may support the distal end of the connecting pipe 26 .
·在上述第2实施方式中，支承部件40不仅是盖31，也可以采用与输出管24直接连接的构成。并且，支承部件40只要是安装在车身且配置在燃料供给装置20A的附近的部件的话，也可以采用与燃料供给装置20A以外的其他任意的部件连接的构成。- In the said 2nd Embodiment, the support member 40 is not only the cover 31, but the structure connected directly to the output pipe 24 may be employ|adopted. Furthermore, as long as the support member 40 is attached to the vehicle body and arranged in the vicinity of the fuel supply device 20A, it may be connected to any member other than the fuel supply device 20A.
·在上述第2实施方式中，第1支承部351也可以与凸缘35分开地设置。例如，第1支承部351也可以采用与输出管24直接连接的构成。并且，只要是第1支承部351安装在车身并配置在燃料供给装置20A的附近的部件的话，也可以采用与燃料供给装置20A以外的其他任意的部件连接的构成。- In the above-mentioned second embodiment, the first support portion 351 may be provided separately from the flange 35 . For example, the first support portion 351 may be configured to be directly connected to the output pipe 24 . Furthermore, as long as the first support portion 351 is attached to the vehicle body and arranged in the vicinity of the fuel supply device 20A, it may be connected to any other member than the fuel supply device 20A.
·在上述第2实施方式中，只要是连接配管26的基端与顶端之间的部位的话，第1支承部351也可以采用对任意的部位进行支承的构成。例如，第1支承部351也可以采用对连接配管26的弯曲部位261进行支承的构成。- In the above-mentioned second embodiment, as long as it is a portion between the proximal end and the distal end of the connecting pipe 26 , the first support portion 351 may be configured to support an arbitrary portion. For example, the first support portion 351 may be configured to support the bent portion 261 of the connection pipe 26 .
·在上述第2实施方式中，也可以通过3个以上的部位对连接配管26进行支承。- In the above-mentioned second embodiment, the connecting pipe 26 may be supported by three or more locations.
·在上述第1实施方式中，只要是在连接配管26的自由端与固定端之间的话，也可以将节流部27设置在任意的位置。例如，也可以将节流部27设置在连接配管26的中间位置。即使是这样的构成，也能够得到与上述(2)同样的效果。- In the above-mentioned first embodiment, as long as it is between the free end and the fixed end of the connecting pipe 26, the throttle portion 27 may be provided at any position. For example, the throttle portion 27 may be provided at an intermediate position of the connecting pipe 26 . Even with such a configuration, the same effect as that of (2) above can be obtained.
·在上述第1实施方式中，也可以在输出管24与连接配管26的连接部位或连接配管26内不设置节流部27。- In the above-mentioned first embodiment, the throttle portion 27 may not be provided at the connection portion between the output pipe 24 and the connection pipe 26 or in the connection pipe 26 .
·在上述第2实施方式中，也可以将节流部27设置在输出管24与连接配管26的连接部位、即凸缘35内或者成为连接配管26的自由端与固定端之间的位置。由此，能够得到与上述(2)同样的效果。· In the above-mentioned second embodiment, the throttle part 27 may be provided in the connecting portion of the output pipe 24 and the connecting pipe 26 , that is, in the flange 35 or at a position between the free end and the fixed end of the connecting pipe 26 . Thereby, the same effect as said (2) can be acquired.
·在上述各个实施方式中，燃料供给装置20内的燃料压力的脉动可能会有包括第三个低频的正常波的情况。将该第三个低频的正常波称为“脉动的三次分量”。于是，在这种情况下，只要能够将燃料供给装置20内的燃料压力脉动的二次分量的波节B设定为位于输出管24的长度范围内的话，也可以调整连接配管26的粗度、长度或者这两者，以使燃料供给装置20内的燃料压力脉动的三次分量的波节设定为位于输出管24的长度范围内。在这种情况下，能够使输出管24内的燃料压力的脉动进一步降低。· In each of the above embodiments, the pulsation of the fuel pressure in the fuel supply device 20 may include a third normal wave with a low frequency. This third, low-frequency normal wave is called the "tertiary component of the pulsation". Therefore, in this case, as long as the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 can be set within the length range of the output pipe 24, the thickness of the connecting pipe 26 can also be adjusted. , the length, or both, so that the node of the third-order component of the fuel pressure pulsation in the fuel supply device 20 is set to be within the length of the output pipe 24 . In this case, the pulsation of the fuel pressure in the delivery pipe 24 can be further reduced.
·在上述各实施方式中，以使燃料供给装置20内的燃料压力脉动的二次分量的波节B设定为位于输出管24的长度范围内的方式决定连接配管26的粗度、长度或者这两者，但只要是采用连接配管26与输出管24连接的构成的话，在燃料供给装置20内产生的脉动的二次分量的波节B并非一定要设定为位于输出管24的长度范围内。也就是说，通过设置连接配管26，从而能够使燃料供给装置20内的燃料压力脉动的二次分量的波节B比较例的燃料供给装置100更靠近与输出管24连接的燃料喷射阀14。其结果，能够降低输出管24内的燃料压力的脉动。In each of the above-mentioned embodiments, the thickness, length, or Both, as long as the connecting pipe 26 is connected to the output pipe 24, the node B of the secondary component of the pulsation generated in the fuel supply device 20 does not have to be set within the length range of the output pipe 24. Inside. That is, by providing the connecting pipe 26 , the node B of the secondary component of the fuel pressure pulsation in the fuel supply device 20 can be brought closer to the fuel injection valve 14 connected to the delivery pipe 24 in the fuel supply device 100 of the comparative example. As a result, the pulsation of the fuel pressure in the delivery pipe 24 can be reduced.
·在上述第1实施方式中，对连接配管26实施了弯曲加工，但是与输出管24连接的连接配管26也可以是呈直线状的输出管。- In the above-mentioned first embodiment, the connection pipe 26 was bent, but the connection pipe 26 connected to the delivery pipe 24 may be a linear delivery pipe.
·在上述各个实施方式中，输出管24不仅是在其一端，而且也可以是从压力调整器23延伸的供给管25连接在中间位置的输出管。- In each of the above-mentioned embodiments, the output pipe 24 is not only at one end thereof, but may also be an output pipe in which the supply pipe 25 extending from the pressure regulator 23 is connected at an intermediate position.
·也可以将燃料供给装置具体化为将CNG以外的其他气体燃料供给至内燃机的装置，也可以具体化为将汽油等液体燃料供给至内燃机的装置。- The fuel supply device may be embodied as a device that supplies gaseous fuel other than CNG to the internal combustion engine, or may be embodied as a device that supplies liquid fuel such as gasoline to the internal combustion engine.
Claims (8)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-221619 | 2013-10-24 | ||
| JP2013221619 | 2013-10-24 | ||
| JP2013246634A JP6031728B2 (en) | 2013-10-24 | 2013-11-28 | Fuel supply device |
| JP2013-246634 | 2013-11-28 | ||
| PCT/JP2014/077953 WO2015060303A1 (en) | 2013-10-24 | 2014-10-21 | Fuel supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105658948A true CN105658948A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480057756.8A Pending CN105658948A (en) | 2013-10-24 | 2014-10-21 | Fuel supply device |
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| Country | Link |
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| JP (1) | JP6031728B2 (en) |
| CN (1) | CN105658948A (en) |
| WO (1) | WO2015060303A1 (en) |
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| JP2023091650A (en) * | 2021-12-20 | 2023-06-30 | 臼井国際産業株式会社 | Piping for supplying vehicular gas fuel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151830A (en) * | 1995-11-30 | 1997-06-10 | Mikuni Corp | Fuel injection device |
| US6230684B1 (en) * | 1996-05-20 | 2001-05-15 | Denso Corporation | Fuel supply apparatus for direct injection type gasoline engine |
| JP2003003926A (en) * | 2001-06-25 | 2003-01-08 | Piolax Inc | Fuel delivery pipe with pulsation damper |
| JP2003322068A (en) * | 2002-04-26 | 2003-11-14 | Komatsu Ltd | Fuel injection device |
| JP2006514201A (en) * | 2003-02-25 | 2006-04-27 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | High pressure line for fuel injector |
| JP3991756B2 (en) * | 2002-04-17 | 2007-10-17 | トヨタ自動車株式会社 | Fuel injection device |
| JP2007270682A (en) * | 2006-03-30 | 2007-10-18 | Honda Motor Co Ltd | Fuel supply device having engine side fuel pipe and tank side fuel pipe |
| US20120017875A1 (en) * | 2010-07-26 | 2012-01-26 | Honda Motor Co., Ltd. | Fuel supply system of vee engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4616817B2 (en) * | 2006-11-10 | 2011-01-19 | 三菱重工業株式会社 | Accumulated fuel injection system for engines |
| JP2009264166A (en) * | 2008-04-23 | 2009-11-12 | Toyota Motor Corp | Delivery pipe |
-
2013
- 2013-11-28 JP JP2013246634A patent/JP6031728B2/en active Active
-
2014
- 2014-10-21 CN CN201480057756.8A patent/CN105658948A/en active Pending
- 2014-10-21 WO PCT/JP2014/077953 patent/WO2015060303A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151830A (en) * | 1995-11-30 | 1997-06-10 | Mikuni Corp | Fuel injection device |
| US6230684B1 (en) * | 1996-05-20 | 2001-05-15 | Denso Corporation | Fuel supply apparatus for direct injection type gasoline engine |
| JP2003003926A (en) * | 2001-06-25 | 2003-01-08 | Piolax Inc | Fuel delivery pipe with pulsation damper |
| JP3991756B2 (en) * | 2002-04-17 | 2007-10-17 | トヨタ自動車株式会社 | Fuel injection device |
| JP2003322068A (en) * | 2002-04-26 | 2003-11-14 | Komatsu Ltd | Fuel injection device |
| JP2006514201A (en) * | 2003-02-25 | 2006-04-27 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | High pressure line for fuel injector |
| JP2007270682A (en) * | 2006-03-30 | 2007-10-18 | Honda Motor Co Ltd | Fuel supply device having engine side fuel pipe and tank side fuel pipe |
| US20120017875A1 (en) * | 2010-07-26 | 2012-01-26 | Honda Motor Co., Ltd. | Fuel supply system of vee engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015108292A (en) | 2015-06-11 |
| JP6031728B2 (en) | 2016-11-24 |
| WO2015060303A1 (en) | 2015-04-30 |
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Application publication date: 20160608 |