WO2010025612A1 - 发动机的齿轮侧隙调整装置 - Google Patents

发动机的齿轮侧隙调整装置 Download PDF

Info

Publication number
WO2010025612A1
WO2010025612A1 PCT/CN2009/000767 CN2009000767W WO2010025612A1 WO 2010025612 A1 WO2010025612 A1 WO 2010025612A1 CN 2009000767 W CN2009000767 W CN 2009000767W WO 2010025612 A1 WO2010025612 A1 WO 2010025612A1
Authority
WO
WIPO (PCT)
Prior art keywords
camshaft
gear
idler
idler gear
shaft
Prior art date
Application number
PCT/CN2009/000767
Other languages
English (en)
French (fr)
Inventor
肖亨琳
Original Assignee
无锡开普机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 无锡开普机械有限公司 filed Critical 无锡开普机械有限公司
Publication of WO2010025612A1 publication Critical patent/WO2010025612A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0535—Single overhead camshafts [SOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/125—Adjustment of backlash during mounting or assembly of gearing

Definitions

  • the present invention relates to a gear backlash adjusting device for an engine, and more particularly to a backlash adjusting device between a camshaft driving gear of an engine and a camshaft idler gear, and belongs to the technical field of internal combustion engines.
  • the multi-cylinder engine is equipped with a camshaft drive gear and a number of idler gears in the gear chamber of the body. If the camshaft idler gear is just mounted on the side of the cylinder head, the error in the machining of the body and the error in the manufacture of the cylinder head gasket itself , the backlash between the camshaft idler gear and the camshaft drive gear is difficult to guarantee.
  • the traditional solution is to group the cylinder head gaskets to compensate for the machining error of the body, so that the backlash between the camshaft idler gear and the camshaft drive gear meets the requirements.
  • An object of the present invention is to overcome the above-mentioned deficiencies and to provide a gear side gap adjusting device for an engine which can ensure a backlash between a camshaft idler gear and a camshaft drive gear without affecting an engine compression ratio.
  • the gear backlash adjusting device of the engine includes a gear chamber bottom plate, a camshaft idler gear, a camshaft drive gear, a camshaft idler gear shaft and a camshaft, and a camshaft idler is mounted on the gear chamber bottom plate.
  • the camshaft drive gear is mounted on the camshaft
  • the camshaft idler gear is mounted on the camshaft idler gear shaft
  • the camshaft idler gear meshes with the camshaft drive gear, characterized by: the camshaft idler gear shaft
  • a positioning pin, a pressure plate and a fastening bolt are provided on the upper plate, and the pressure plate is fastened to the camshaft idler gear shaft by a fastening bolt.
  • the positioning pin is located on the center line of the pinion gear and the camshaft idler gear, and the positioning pin functions as a positioning camshaft idler gear shaft.
  • the fastening bolts are two or more.
  • the invention eliminates the trouble of replacing the cylinder head gasket for adjusting the gear backlash, does not affect the compression ratio of the engine, saves time and improves efficiency.
  • the invention has simple structure and convenient adjustment.
  • the invention consists of a positioning pin, a pressure plate and a fastening
  • the bolt is composed of a positioning pin to position the idler gear shaft, and the pressure plate and the fastening bolt are axially positioned.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • the gear case bottom plate 2 of the present invention is fixed to the front end surface of the engine block 1, and the center shaft 11, the crankshaft 10 and the cam shaft 13 are mounted on the gear case bottom plate 2, and the center shaft 11 is coaxially mounted.
  • the large gear 4 and the pinion 5, the crank timing gear 3 is mounted on the crankshaft 10
  • the camshaft idler gear 6 is mounted on the gear chamber floor 2 via the camshaft idler shaft 12, and the camshaft idler shaft 12 is located on the side of the cylinder head Nearby, the pinion 5 meshes with the camshaft idler gear 6, and the camshaft idler gear 6 meshes with the camshaft drive gear 7.
  • the camshaft idler gear shaft 12 is provided with a positioning pin 8, a pressure plate 14 and a fastening bolt 9, and the pressure plate 14 is fastened to the camshaft idler gear shaft 12 by fastening bolts 9.
  • the positioning pin 8 is located on the center line of the pinion 5 and the camshaft idler gear 6.
  • the positioning pin 8 functions to position the camshaft idler gear shaft 12. When the backlash is adjusted, the camshaft idler shaft 12 and the camshaft are used.
  • the pressure plate 14 and the fastening bolt 9 are axially positioned, and the camshaft idler shaft 12-end is pressed against the gear chamber bottom plate 2, and the other end is axially positioned by the pressure plate 14.
  • the camshaft drive gear 7 is mounted on the camshaft 13.
  • the gear ratio of the large gear 4 to the crankshaft timing gear 3 is 2: 1, and the number of teeth of the pinion 5 is equal to the number of teeth of the camshaft drive gear 7.
  • the driving route of the camshaft is: the gear ratio of the crankshaft timing gear 3 and the large gear 4 is set to 1: 2,
  • the rotational speed transmitted to the large gear 4 by the crankshaft timing gear 3 is reduced by half, and then the power is transmitted to the camshaft idler gear 6 by the pinion 5 having the same rotational speed as the large gear 4. Since the pinion 5 has a small number of teeth, the volume becomes small.
  • the camshaft idler gear 6 transmits power to the camshaft drive gear 7. Since the camshaft idler gear 6 does not change the gear ratio, the camshaft drive gear 7 rotates at the same speed as the pinion 5, that is, the camshaft drive gear 7 rotates the crankshaft.
  • the timing gear 3 is half the speed.
  • the working process of the present invention is as follows: When it is necessary to adjust the backlash between the camshaft idler gear 6 and the camshaft drive gear 7, it is only necessary to loosen the fastening bolt 9 and the pressure plate 14, due to the fastening bolt 9 and the fastening bolt hole There is a gap between the camshaft idler shaft 12 and the camshaft idler gear 6 about the positioning pin 8 until the backlash meets the requirements, and then the fastening bolt 9 is locked, thereby achieving adjustment.
  • the center distance of the camshaft idler gear 6 and the camshaft drive gear 7 is 210.707 mm
  • the center distance of the camshaft idler gear 6 and the pinion 5 is also 210.707 mm
  • the center distance of the camshaft drive gear 7 and the pinion 5 is At 348.281 mm
  • the camshaft idler gear 6 and the camshaft drive gear 7 is 0, 4625 mm, which has negligible effect on the center distance of the camshaft idler gear 6 and the pinion 5 positioned on the bottom plate 2 of the gear chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

发动机的齿轮侧隙调整装置
技术领域
本发明涉及一种发动机的齿轮侧隙调整装置， 具体涉及发动机的凸轮轴 驱动齿轮与凸轮轴惰齿轮之间的侧隙调整装置， 属于内燃机技术领域。
背景技术
多缸发动机在机体的齿轮室中装配有凸轮轴驱动齿轮和若干惰齿轮等部 件， 如果凸轮轴惰齿轮正好安装在气缸盖侧面， 那么由于机体加工的误差和 气缸盖垫片本身加工制造的误差， 使凸轮轴惰齿轮和凸轮轴驱动齿轮之间的 侧隙很难得到保证。 传统的解决办法是将气缸盖垫片分组， 以补偿机体的加 工误差， 使凸轮轴惰齿轮和凸轮轴驱动齿轮之间的侧隙符合要求。 但是这种 解决办法存在的问题是： 虽然能保证凸轮轴惰齿轮和凸轮轴驱动齿轮之间的 侧隙， 但是由于没有考虑到气缸盖垫片分组所带来的发动机压缩比的变化， 从而使发动机安装调试都比较麻烦。
发明内容
本发明的目的在于克服上述不足之处， 从而提供一种既能保证凸轮轴惰 齿轮和凸轮轴驱动齿轮之间的侧隙， 又不会影响发动机压缩比的发动机的齿 轮侧隙调整装置。
按照本发明提供的技术方案， 发动机的齿轮侧隙调整装置， 包括齿轮室 底板、 凸轮轴惰齿轮、 凸轮轴驱动齿轮、 凸轮轴惰齿轮轴及凸轮轴， 所述齿 轮室底板上安装凸轮轴惰齿轮轴及凸轮轴，凸轮轴驱动齿轮安装在凸轮轴上， 凸轮轴惰齿轮安装在凸轮轴惰齿轮轴上， 凸轮轴惰齿轮与凸轮轴驱动齿轮啮 合， 特征是： 所述凸轮轴惰齿轮轴上设置有定位销、 压板及紧固螺栓， 压板 通过紧固螺栓紧固在凸轮轴惰齿轮轴上。
所述定位销位于小齿轮与凸轮轴惰齿轮的中心连线上， 定位销起定位凸 轮轴惰齿轮轴的作用。
所述紧固螺栓采用两个或两个以上。
本发明与已有技术相比具有以下优点：
本发明省去了为调节齿轮侧隙必须更换气缸盖垫片的麻烦，不会影响 发动机的压缩比， 节省了时间， 提高了效率。
2、 本发明结构简单， 调节方便。 本发明由定位销、 压板及紧固 螺栓组成，定位销起定位惰齿轮轴的作用，压板及紧固螺栓起轴向定位作用。 当需要调节凸轮轴惰齿轮和凸轮轴驱动齿轮之间的侧隙时， 只需松开紧固螺 栓， 然后转动凸轮轴惰齿轮轴， 使侧隙满足要求后再锁紧紧固螺栓， 从而达 到调节凸轮轴惰齿轮和凸轮轴驱动齿轮之间的侧隙的目的。
3、将定位销设置于小齿轮与凸轮轴惰齿轮的中心连线上，这样小齿轮与 凸轮轴惰齿轮之间的中心距有很小的变化就能引起凸轮轴惰齿轮与凸轮轴驱 动齿轮之间的中心距很大的变化， 从而调整凸轮轴惰齿轮和凸轮轴驱动齿轮 之间的侧隙。
附图说明
图 1为本发明使用状态图， 其中去掉了齿轮室盖。
图 2为图 1中的 A-A剖视图。
具体实施方式
下面本发明将结合附图中的实施例作进一步描述：
图 1〜图 2所示， 包括机体 1， 齿轮室底板 2, 曲轴正时齿轮 3， 大齿轮 4， 小齿轮 5， 凸轮轴惰齿轮 6, 凸轮轴驱动齿轮 7， 定位销 8， 紧固螺栓^ 曲轴 10, 中心轴 11， 凸轮轴惰齿轮轴 12, 凸轮轴 13， 压板 14等。
如图 1、 图 2所示， 本发明齿轮室底板 2固定在发动机机体 1的前端端 面， 在齿轮室底板 2上安装中心轴 11、 曲轴 10及凸轮轴 13, 中心轴 11上同 轴安装有大齿轮 4与小齿轮 5， 曲轴正时齿轮 3安装在曲轴 10上， 凸轮轴惰 齿轮 6通过凸轮轴惰齿轮轴 12安装在齿轮室底板 2上， 凸轮轴惰齿轮轴 12 位于气缸盖的侧面附近， 小齿轮 5与凸轮轴惰齿轮 6啮合， 凸轮轴惰齿轮 6 与凸轮轴驱动齿轮 7啮合。
所述凸轮轴惰齿轮轴 12上设置有定位销 8、压板 14及紧固螺栓 9，压板 14通过紧固螺栓 9紧固在凸轮轴惰齿轮轴 12上。 定位销 8位于小齿轮 5与 凸轮轴惰齿轮 6的中心连线上， 定位销 8起定位凸轮轴惰齿轮轴 12的作用， 当调整侧隙时，起到凸轮轴惰齿轮轴 12及凸轮轴惰齿轮 6的旋转中心轴的作 用。紧固螺栓 9至少有二个，在本实施例中优选为三个。压板 14及紧固螺栓 9起轴向定位作用， 凸轮轴惰齿轮轴 12—端压紧在齿轮室底板 2上， 另一端 通过压板 14来轴向定位。
凸轮轴驱动齿轮 7安装在凸轮轴 13上。大齿轮 4与曲轴正时齿轮 3的齿 数比为 2： 1， 小齿轮 5的齿数与凸轮轴驱动齿轮 7的齿数相等。
凸轮轴的传动路线是：曲轴正时齿轮 3和大齿轮 4的齿数比设置为 1： 2， 通过曲轴正时齿轮 3传递到大齿轮 4的转速被降低一半， 然后通过与大齿轮 4转速相同的小齿轮 5将动力传递给凸轮轴惰齿轮 6。 由于小齿轮 5齿数少， 因此体积变小。 凸轮轴惰齿轮 6将动力传递给凸轮轴驱动齿轮 7， 由于凸轮 轴惰齿轮 6并不会改变传动比， 所以凸轮轴驱动齿轮 7转速同小齿轮 5， 意 即凸轮轴驱动齿轮 7转速是曲轴正时齿轮 3转速的一半。
本发明的工作过程如下： 当需要调节凸轮轴惰齿轮 6和凸轮轴驱动齿轮 7之间的侧隙时， 只需松开紧固螺栓 9和压板 14， 由于紧固螺栓 9与紧固螺 栓孔之间存在间隙， 转动凸轮轴惰齿轮轴 12时， 凸轮轴惰齿轮轴 12及凸轮 轴惰齿轮 6绕定位销 8旋转， 直到使侧隙满足要求后再锁紧紧固螺栓 9， 从 而达到调节凸轮轴惰齿轮 6和凸轮轴驱动齿轮 7之间的侧隙的目的。 由于凸 轮轴惰齿轮 6绕定位销 8旋转的角度很小， 故认为它对凸轮轴惰齿轮 6和小 齿轮 5的中心距影响很小， 但是对凸轮轴惰齿轮 6和凸轮轴驱动齿轮 7的中 心距却影响很大。 例如： 凸轮轴惰齿轮 6和凸轮轴驱动齿轮 7 的中心距为 210.707mm, 凸轮轴惰齿轮 6和小齿轮 5的中心距也为 210.707mm， 凸轮轴 驱动齿轮 7和小齿轮 5的中心距为 348.281mm时， 为了调整凸轮轴惰齿轮 6 和凸轮轴驱动齿轮 7的恻隙， 当凸轮轴惰齿轮 6和小齿轮 5的中心距变化只 有 0.0045mm时， 凸轮轴惰齿轮 6和凸轮轴驱动齿轮 7的中心距变化却达到 0,4625mm,这对定位在齿轮室底板 2上的凸轮轴惰齿轮 6和小齿轮 5的中心 距的影响可以忽略不计。

Claims

权 利 要 求
1、一种发动机的齿轮侧隙调整装置， 包括齿轮室底板（2)、 凸轮轴惰齿 轮（6)、 凸轮轴驱动齿轮（7)、 凸轮轴惰齿轮轴（12)及凸轮轴（13)， 所述 齿轮室底板 （2) 上安装凸轮轴惰齿轮轴 （12) 及凸轮轴 （13 )， 凸轮轴驱动 齿轮（7) 安装在凸轮轴 （13) 上， 凸轮轴惰齿轮 （6) 安装在凸轮轴惰齿轮 轴（12) 上， 凸轮轴惰齿轮（6) 与凸轮轴驱动齿轮 （7) 啮合， 其特征是： 所述凸轮轴惰齿轮轴（12)上设置有定位销（8)、压板（14)及紧固螺栓（9), 压板（14) 通过紧固螺栓 （9) 紧固在凸轮轴惰齿轮轴 （12)上。
2、根据权利要求 1所述的发动机的齿轮侧隙调整装置，其特征在于所述 定位销 （8) 位于小齿轮 （5) 与凸轮轴惰齿轮 （6) 的中心连线上。
3、根据权利要求 1所述的发动机的齿轮侧隙调整装置，其特征在于所述 紧固螺栓 （9)采用两个或两个以上。
PCT/CN2009/000767 2008-09-03 2009-07-06 发动机的齿轮侧隙调整装置 WO2010025612A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA200810195846XA CN101349173A (zh) 2008-09-03 2008-09-03 发动机的齿轮侧隙调整装置
CN200810195846.X 2008-09-03

Publications (1)

Publication Number Publication Date
WO2010025612A1 true WO2010025612A1 (zh) 2010-03-11

Family

ID=40268113

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/000767 WO2010025612A1 (zh) 2008-09-03 2009-07-06 发动机的齿轮侧隙调整装置

Country Status (2)

Country Link
CN (1) CN101349173A (zh)
WO (1) WO2010025612A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664752A1 (de) * 2012-05-15 2013-11-20 MAN Truck & Bus AG Verfahren zur Kompensation einer Achsabstandsänderung am Steuertrieb einer ventilgesteuerten Brennkraftmaschine sowie Steuertrieb
EP3438434A4 (en) * 2016-03-29 2019-02-06 Yanmar Co., Ltd. MOTOR DEVICE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101349173A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 发动机的齿轮侧隙调整装置
CN102235190A (zh) * 2010-04-29 2011-11-09 广西玉柴机器股份有限公司 一种保证发动机顶置凸轮轴齿轮间隙的定位固定装置
CN107166013A (zh) * 2017-07-13 2017-09-15 广西玉柴机器股份有限公司 可调侧隙的齿轮结构
CN113775413B (zh) * 2021-09-29 2022-06-14 广西玉柴机器股份有限公司 一种齿轮啮合间隙调整结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502059A (en) * 1968-03-20 1970-03-24 Gen Motors Corp Adjustable gear train
US5540112A (en) * 1992-05-26 1996-07-30 Caterpillar Inc. Backlash adjustment mechanism
CN200996470Y (zh) * 2006-11-15 2007-12-26 辽宁大族冠华印刷科技股份有限公司 齿轮调心机构
CN101349173A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 发动机的齿轮侧隙调整装置
CN201258767Y (zh) * 2008-09-03 2009-06-17 无锡开普机械有限公司 发动机的齿轮侧隙调整装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502059A (en) * 1968-03-20 1970-03-24 Gen Motors Corp Adjustable gear train
US5540112A (en) * 1992-05-26 1996-07-30 Caterpillar Inc. Backlash adjustment mechanism
CN200996470Y (zh) * 2006-11-15 2007-12-26 辽宁大族冠华印刷科技股份有限公司 齿轮调心机构
CN101349173A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 发动机的齿轮侧隙调整装置
CN201258767Y (zh) * 2008-09-03 2009-06-17 无锡开普机械有限公司 发动机的齿轮侧隙调整装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664752A1 (de) * 2012-05-15 2013-11-20 MAN Truck & Bus AG Verfahren zur Kompensation einer Achsabstandsänderung am Steuertrieb einer ventilgesteuerten Brennkraftmaschine sowie Steuertrieb
CN103527278A (zh) * 2012-05-15 2014-01-22 曼卡车和巴士股份公司 用于补偿轴间距变化的方法以及控制传动装置
RU2621581C2 (ru) * 2012-05-15 2017-06-06 Ман Трак Унд Бас Аг Способ компенсации изменения межосевого расстояния в газораспределительном механизме снабженного клапанным газораспределением двигателя внутреннего сгорания, а также газораспределительный механизм снабженного клапанным газораспределением двигателя внутреннего сгорания
EP3438434A4 (en) * 2016-03-29 2019-02-06 Yanmar Co., Ltd. MOTOR DEVICE
CN109642520A (zh) * 2016-03-29 2019-04-16 洋马株式会社 发动机装置
CN109642520B (zh) * 2016-03-29 2021-09-21 洋马动力科技有限公司 发动机装置

Also Published As

Publication number Publication date
CN101349173A (zh) 2009-01-21

Similar Documents

Publication Publication Date Title
WO2010025612A1 (zh) 发动机的齿轮侧隙调整装置
JP2007285236A (ja) カム軸により回転駆動される補機を備える内燃機関
CN106837460B (zh) 一种内燃机连续可变气门正时装置
DE60019772D1 (de) Brennkraftmaschine mit variablem Verdichtungsverhältnis und einstellbar Ventilsteuerung
US20090133653A1 (en) Spur gear drive for an internal combustion engine
WO2009132506A1 (zh) 一种发动机的齿轮室盖
CN102102553B (zh) 组合式凸轮轴
JPH0333408A (ja) Ｄｏｈｃエンジンのカム軸軸受構造
WO2008052402A1 (fr) Moteur à quatre temps à arbre à cames en tête
KR20170111568A (ko) 엔진의 스프라켓 구조
CN201258767Y (zh) 发动机的齿轮侧隙调整装置
CN2890348Y (zh) 一种使用旋转阀片的内燃机配气机构
EP2634407A1 (en) Camshaft position determination system
CN101082291A (zh) 内燃机旋转阀式配气机构
JP6210089B2 (ja) エンジンの補機駆動装置
CN202659296U (zh) 发动机的减压装置
WO2010025611A1 (zh) 发动机的齿轮传动装置
CA2433718A1 (en) Valve clearance adjustment mechanism
CA2606776A1 (en) Engine
CN210829497U (zh) 一种飞轮转动器
CN210819325U (zh) 一种飞轮转动器
CN114922710B (zh) 一种乘用车v型发动机正时链条系统装调方法
JP2002227738A (ja) エンジンの燃料噴射ポンプ
CN210460784U (zh) 一种相位调节装置
CN102606254B (zh) 发动机的减压装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09810987

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09810987

Country of ref document: EP

Kind code of ref document: A1