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71. 发明专利

JP2004517267A Fuel injection valve 审中-公开
公开(公告)号：JP2004517267A
公开(公告)日：2004-06-10
申请号：JP2002559949
申请日：2002-01-24
申请人：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Robert Bosch Gmbh
发明人：ホールギュンター , カイムノルベルト
IPC分类号： F02B75/12 , F02M51/00 , F02M51/06 , F02M61/06 , F02M61/12 , F02M61/16 , F02M61/18
CPC分类号： F02M61/18 , F02B2075/125 , F02M51/005 , F02M51/0671 , F02M61/06 , F02M61/12 , F02M61/161 , F02M61/162 , F02M61/165 , Y02T10/123
摘要：内燃機関の燃料噴射装置のための燃料噴射弁であって、弁閉鎖体（４）が設けられており、該弁閉鎖体（４）が弁ニードル（３）と作用結合されており、前記弁閉鎖体（４）が、弁座体（５）の切欠に配置された弁座面（６）と協働してシール座を形成しており、弁座体（５）に配置された少なくとも１つの噴射開口（７）が設けられている。弁座面（６）と噴射開口（７）との間において、弁座体（５）の切欠によって第２の面（３６）が形成されており、該第２の面（３６）と燃料噴射弁（１）の中央軸線（３７）とが、弁座面（６）と該中央軸線（３７）とが成す角度よりもシャープな鋭角（β）を形成している。弁閉鎖体（４）の下流側の端部に閉鎖体延長部（３５）が配置されており、該閉鎖体延長部（３５）の外套面（３９）と、弁閉鎖体（４）の、該延長部（３５）に隣接する輪郭とが鈍角を形成している。

72. 发明专利

JPS618468A Throttle type fuel injection nozzle 失效
标题翻译：节流型燃油喷射喷嘴
公开(公告)号：JPS618468A
公开(公告)日：1986-01-16
申请号：JP12720384
申请日：1984-06-20
申请人： Nissan Motor Co Ltd
发明人： KUBO SHINICHI
IPC分类号： F02M61/06 , F02M61/18
CPC分类号： F02M61/06
摘要： PURPOSE:To respectively maintain a throttle part at a low temperature further a spray pin part at a high temperature so as to suppress the adhesion of carbon, by providing a heat insulating part between the throttle part and the spray pin part which are provided in the end of a needle valve fitted to the jet of a nozzle. CONSTITUTION:A needle valve 3 has in the end side of its tapered seated surface 4 a column-shaped throttle part 5 and a tapered spray pin part 6, and the throttle part 5 is fitted to a jet 2 in a nozzle body 1 through a fine clearance. Here the spray pin part 6 is successively connected in a line with a point end of the throttle part 5 through a tapered surface 7, further this successively connected part provides a peripheral groove 8 to be recessed over the whole periphery as a heat insulating part. And the existence of a space by the peripheral groove 8 suppresses transmission of heat from the spray pin part 6 to the throttle part 5. In this way, the needle valve 3 maintains the throttle part 5 at a low temperature suppressing the adhesion of carbon while the spray pin part 6 at a high temperature promptly destroying the adhering carbon by fire.
摘要翻译：目的：通过在节流部和喷针部之间设置隔热部，在高温下分别将节气门部分进一步保持在高温下的喷嘴部，以抑制碳的粘附，安装在喷嘴喷嘴上的针阀的端部。构成：针阀3在其锥形座面4的端侧具有柱状节流部5和锥形喷针部6，节流部5通过喷嘴体1与喷嘴体1嵌合精细清关。这里，喷针部6通过锥面7与节流部5的点端连续地连接，此外，连续连接部提供作为隔热部在整个周缘上凹陷的周向槽8。并且，通过周向槽8的空间的存在抑制了从喷射销部6向节流部5的热传递。这样，针阀3将节气门部5保持在低温下，抑制碳的附着，同时高温下的喷针部6迅速地消灭附着的碳。

73. 发明专利

JPS59190470A Fuel injection method and device of diesel engine 失效
标题翻译：燃油喷射方法和柴油发动机装置
公开(公告)号：JPS59190470A
公开(公告)日：1984-10-29
申请号：JP6234783
申请日：1983-04-11
申请人： Toyota Motor Corp
发明人： SUZUKI TAKAO
IPC分类号： F02B3/06 , F02M61/06
CPC分类号： F02M61/06 , F02B3/06
摘要： PURPOSE:To decrease the generation of noise and white smoke at idle operation of an engine and promote its optimum combustion at high load operation of the engine, by controlling the opening area of a needle valve rod, which is lifted in accordance with a rise of fuel pressure in a fuel reservoir chamber, to be initially increased, secondly decreased and gradually increased. CONSTITUTION:If fuel is supplied to the oil reservoir chamber of a nozzle seat 7 increasing its internal pressure, a needle valve rod 9' is lifted but only about detached from a tapered surface 17 of the nozzle seat 7 due to a small amount of supply of the fuel for a short time of the pressurizing action. Then the fuel is injected from a nozzle opening 20 of an area S provided between a bottom end opening 14 of the seat 7 and a rod 19 of the rod 9'. This throttled flow Q, being larger by the increased area as shown by a curve in the drawing, enables a flow of the fuel to be ensured even if carbon adheres in the vicinity of the opening 20. If an engine load is increased, the rod 9' is further lifted, and the tapered portion of a metering flange 21 decreases the area to form an opening 20', holding the flow of the fuel to a fixed rate till the flange 21 passes through the opening part 14. Next, the opening 20' is changed to an opening 20'' by an increase of the load, causing the flow of the fuel to reach a maximum rate and enabling the most suitable combustion of an engine.
摘要翻译：目的：为了减少发动机怠速运转时产生的噪音和白烟，并通过控制针阀杆的开口面积来提高其在发动机高负荷运行时的最佳燃烧，该开口面积根据燃料储存室中的燃料压力最初增加，二次降低并逐渐增加。构成：如果向喷嘴座7的储油室提供燃料以增加其内部压力，则针阀杆9'被提升，但是仅由于供应量少而与喷嘴座7的锥形表面17分离的燃料在短时间内的加压动作。然后，从设置在座椅7的底端开口14和杆9'的杆19之间的区域S的喷嘴开口20喷射燃料。如图中曲线所示，这个节流流量Q越大，即使碳附着在开口20附近也能确保燃料的流动。如果发动机负荷增加，则杆 9'被进一步提升，并且计量法兰盘21的锥形部分减小该区域以形成开口20'，从而使燃料流保持固定的速率，直到凸缘21通过开口部分14.接下来， 20'通过负载的增加而改变为开口20“，导致燃料的流量达到最大速率，并使发动机能够最适合地燃烧。

74. 发明专利

JPS59134373A Fuel injection nozzle 失效
标题翻译：燃油喷射喷嘴
公开(公告)号：JPS59134373A
公开(公告)日：1984-08-02
申请号：JP921483
申请日：1983-01-22
申请人： Daihatsu Motor Co Ltd
发明人： MIYAKE HIROSHI
IPC分类号： F02M61/06
CPC分类号： F02M61/06
摘要： PURPOSE:To prevent the complete blockage of a fuel injection nozzle in a Diesel engine and the like by providing several surface processing parts on the periphery of a small-diameter cylindrical part at top of a needle valve to be slanted to increase the width of opening gradually towards the top. CONSTITUTION:On a peripheral face 7a of a small-diameter cylindrical part 7 of a needle valve 6, four surface processing parts 9 are provided to be tangentially and circumferentially cut at fixed intervals and slanted at an angle theta to expand the width of opening toward the top, while in a circular gap 8 between a nozzle main body 2 and an injection nozzle 5, wide parts 8a and narrow parts 8b are formed. The opening width x of this wide part 8a is set between the maximum value within the limit of a fixed value of the combustion noise after the accumulated amount of carbon comes to a stationary value and the minimum value to prevent the complete blockage of carbon, and furthermore, the complete blockage can be surely prevented by the slanting angle theta. This construction permits to maintain an ideal injection ratio even when carbon is stuck and prevent the complete blockage by carbon without fail.
摘要翻译：目的：为了防止柴油发动机等中的燃料喷射嘴完全堵塞，通过在针阀顶部的小直径圆柱形部分的周围设置若干表面加工部件以倾斜以增加开口宽度逐渐走向顶峰。构成：在针阀6的小直径圆柱形部分7的外周面7a上设置有四个表面处理部分9，以固定的间隔切向和周向切割，并以角度θ倾斜以将开口宽度朝向在顶部，同时在喷嘴主体2和喷嘴5之间形成圆形间隙8，形成宽部分8a和窄部分8b。该宽幅部8a的开口宽度x被设定在碳累积量达到稳定值之后的燃烧噪声的固定值的极限内的最大值和防止碳完全堵塞的最小值之间，此外，可以通过倾斜角θ可靠地防止完全堵塞。这种结构即使当碳被粘附时也能保持理想的注射比，并且防止碳完全堵塞。

75. 发明专利

JPS5954728A Method of producing turbulence in internal-combustion engine and internal-combustion engine itself 失效
标题翻译：内燃机和内燃机发动机产生湍流的方法
公开(公告)号：JPS5954728A
公开(公告)日：1984-03-29
申请号：JP16579182
申请日：1982-09-21
申请人： Toyota Central Res & Dev Lab Inc
发明人： KATAOKA MASAO , OOSHIMA YUUJIROU , NODA TAKU , SUZUKI SHIGEO
IPC分类号： F02B23/00 , F02B1/02 , F02B1/04 , F02B23/06 , F02B23/08 , F02B23/10 , F02B75/12 , F02F1/24 , F02F1/38 , F02F3/26 , F02F3/28 , F02M61/06 , F02M61/16 , F02M69/04
CPC分类号： F02F3/28 , F02B1/02 , F02B1/04 , F02B23/0624 , F02B23/063 , F02B23/0639 , F02B23/0672 , F02B23/08 , F02B23/104 , F02B2023/108 , F02B2075/125 , F02B2275/40 , F02F1/38 , F02F3/26 , F02F2001/245 , F02F2001/247 , F02M61/06 , F02M61/163 , F02M69/045 , Y02T10/123 , Y02T10/125
摘要： PURPOSE: To effectively produce turbulence for improving combustion efficiency by forming a main recess and a sub-recess communicating to each other through at least two projections on the upper portion of a piston to flow swirling intake air into a combustion chamber.
CONSTITUTION: On the upper portion 20 of a piston 1 are formed a main recess 21 having the round cross-section and sub-recesses 23 communicating to the main recess 21 through three arcuate projections 22 and consisting of three arcs having curvature larger than that of the projection 22. Also, an intake path IP is formed with a helical intake port as a swirling mechanism for giving swirling flow to intake air supplied to the main recess 21 in a combustion chamber. An ignition section of an ignition plug as an ignition system is provided adjacently to the outside of the outer periphery of the main recess 21. The swirling flow accelerated and introduced into said recess 21 is made turbulence by the projections 22 and secondary swirling flow is produced in the sub-recesses 23 so that further turbulence is produced between these swirling flows.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过形成通过活塞上部上的至少两个凸起相互连通的主凹部和副凹槽来有效地产生用于提高燃烧效率的湍流，以将回旋入口空气流入燃烧室。构成：活塞1的上部20形成为具有圆形横截面的主凹部21，而副凹部23通过三个弧形突起22与主凹部21连通，该三个弧形突起22由曲率大于此外，进气通道IP形成有螺旋形入口作为旋转机构，用于向燃烧室中供应到主凹槽21的进气提供旋流。作为点火系统的火花塞的点火部分设置在主凹槽21的外周的外侧。加速并引入到所述凹部21中的旋流被突起22制成湍流，并产生次涡流在副凹部23中，使得在这些涡流之间产生进一步的湍流。

76. 发明专利

JPS5749063A Throttle type fuel injection valve 失效
标题翻译：节流型燃油喷射阀
公开(公告)号：JPS5749063A
公开(公告)日：1982-03-20
申请号：JP12318780
申请日：1980-09-05
申请人： Nissan Motor Co Ltd
发明人： SAKAI YASUROU , YAMAUCHI KATSUTO , KAWAGUCHI HIROYUKI
IPC分类号： F02B3/06 , F02M61/06
CPC分类号： F02M61/06 , F02B3/06
摘要： PURPOSE: To ensure pre-injection at any occasion by a method wherein an inner wall of a nozzle where a throttle section is inserted is formed with a tapered surface and it is so constructed that a gap width increases with lift-up of a valve body.
CONSTITUTION: In a throttle type fuel injection valve, a valve body 2 is separated from a valve seat 1 via a seal section 3. When fuel is at high pressure, the valve body 2 lifts up, and a small amount of fuel as pre-injection is ejected from a ring- shaped gap 8 between a nozzle 6 and a throttle section 4 of the valve body 2. The inner wall of throttle 6 and the outer wall of throttle section 4 each form tapered surfaces 13 with the same tilt angle in respect to an axis line. Even in the event that a carbon layer 14 attaches on the inner and outer walls, fuel in a valve chamber 9 can eject even by a small amount from the increasing gap 8 with a slight lift, because the width of gap 8 increases with lift of valve body 2.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了确保在任何情况下通过其中插入有节流部分的喷嘴的内壁形成锥形表面的方法来进行预喷射，并且其结构使得间隙宽度随着阀体的提升而增加。构成：在节气门式燃料喷射阀中，阀体2经由密封部分3与阀座1分离。当燃料处于高压时，阀体2升高，少量燃料作为预定位置，注射从阀体2的喷嘴6和节流部4之间的环状间隙8排出。节气门6的内壁和节流部4的外壁各自形成具有相同倾斜角的锥形表面13 相对于轴线。即使在碳层14附着在内壁和外壁上的情况下，由于间隙8的宽度随着升高间隙8的增加而增加，所以阀室9中的燃料可以稍微从提升间隙8喷出少量阀体2。

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