CN200940501Y

CN200940501Y - engine blow-by

Info

Publication number: CN200940501Y
Application number: CN 200620129439
Authority: CN
Inventors: 苏泓瑜
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2006-07-11
Filing date: 2006-07-11
Publication date: 2007-08-29
Anticipated expiration: 2016-07-11

Abstract

The utility model relates to a blow-by gas device of engine, which comprises a cylinder head cover of the engine made of plastic material, a cover plate made of plastic material, a labyrinth mechanism arranged between the cylinder head cover and the cover plate, the labyrinth mechanism is composed of a plurality of baffles and retaining walls, the labyrinth mechanism is at least provided with an oil gas inlet, the cylinder head cover is provided with an oil gas outlet, the oil gas outlet is communicated with the labyrinth mechanism, and the cover plate, the cylinder head cover and the labyrinth mechanism form a tight fit in a fusion mode; therefore, the engine oil gas can enter the labyrinth mechanism through the oil gas inlet and is discharged and recovered from the oil gas outlet of the cylinder head cover through the guide collection of the labyrinth mechanism, the discharge amount of the engine oil gas in the cylinder head cover can be reduced, the loss of the engine oil can be further reduced, and the pollution of exhaust gas discharged by an engine can be reduced.

Description

engine blow-by

【技术领域】【Technical field】

本实用新型是有关于一种引擎的吹漏气装置。The utility model relates to a blow-by gas device for an engine.

【背景技术】【Background technique】

引擎1的设计如图1所示，主要是藉由引擎1的燃烧室11内将燃油燃爆，进而可推动活塞12在汽缸13内作往复运动，来带动曲轴14作圆周运动而产生动力。由于活塞12是在汽缸13内作高速的来回动作，因此连带使曲轴14与设于汽缸头15内的凸轮轴151，以及引擎1的其他构件亦成高速的动作，为避免引擎1的各构件(包括活塞、曲轴、凸轮轴等)，因接触摩擦的增加，而造成损坏。因此引擎1均有设置润滑系统，该润滑系统基本上是由相连通的机油箱2、机油泵21、以及输送管路22所构成，藉由机油泵1的抽送机油箱2内的机油，不断的经由轮送管22流至引擎1适当处，如汽缸内壁13、活塞12及汽缸头15内的凸轮轴151，以润滑整体引擎1，最后机油再被回收到机油箱2中，如此重复循环使用，以达润滑引擎1的目的。但，引擎1在运转中会不断的产生高热，使机油蒸发而产生机油蒸气，此机油蒸气称为吹漏气，引擎1吹漏气的产生原因除了上述因素外，另有因引擎1活塞环121间隙压缩行程及爆炸行程所排至曲轴箱的漏气，以及排气阀和阀导管(图中未示出)之间所排至汽缸头盖3的漏气。The design of the engine 1 is shown in FIG. 1 , mainly by burning fuel in the combustion chamber 11 of the engine 1, and then pushing the piston 12 to reciprocate in the cylinder 13 to drive the crankshaft 14 to make a circular motion to generate power. Since the piston 12 moves back and forth at high speed in the cylinder 13, the crankshaft 14, the camshaft 151 located in the cylinder head 15, and other components of the engine 1 also move at a high speed. (including pistons, crankshafts, camshafts, etc.), damage due to increased contact friction. Therefore engine 1 all is provided with lubricating system, and this lubricating system is basically made up of connected sump 2, lubricating oil pump 21, and conveying pipeline 22, by the machine oil in the pumping lug sump 2 of lubricating pump 1, constantly The oil flows to the proper place of the engine 1 through the transmission pipe 22, such as the inner wall of the cylinder 13, the piston 12 and the camshaft 151 in the cylinder head 15, to lubricate the whole engine 1, and finally the oil is recovered into the oil tank 2, and the cycle is repeated. Use to achieve the purpose of lubricating the engine 1. However, the engine 1 will continuously generate high heat during operation, causing the oil to evaporate to produce oil vapor. This oil vapor is called blow-by gas. 121 The air leakage discharged to the crankcase during the gap compression stroke and the explosion stroke, and the air leakage discharged to the cylinder head cover 3 between the exhaust valve and the valve guide (not shown).

因此，环保法规规定了，引擎1的吹漏气不得排放至大气，同时如果饱含机油的吹漏气逸出的量过多，由于该吹漏气是被回收至空气滤清器中，在排入引擎1的燃烧室11内燃烧，因而会造成引擎1的燃爆受到影响，而使引擎1所排放的废气污染提高，且会造成机油损耗过多，而使引擎1的各构件的润滑不足，进而造成损坏。因此，必须有适当的设计来降低随吹漏气排出的机油量。Therefore, the environmental regulations stipulate that the blow-by gas of the engine 1 must not be discharged to the atmosphere. Combustion in the combustion chamber 11 of the engine 1 will cause the combustion and explosion of the engine 1 to be affected, and the exhaust gas pollution emitted by the engine 1 will increase, and it will cause too much loss of engine oil, and the lubrication of each component of the engine 1 will be insufficient. , causing damage. Therefore, there must be a proper design to reduce the amount of oil discharged with the blow-by gas.

习用的机车用引擎为了达到机油油气分离的目的，是在汽缸头盖设置一迷宫或在曲轴箱内部装设一油气分离机构，以在汽缸头盖3上设置迷宫方式的吹漏气构造而言，如图2、3所示，主要是在汽缸头盖3上设置油气出口31，并在汽缸头盖3的内部设有复数个挡板32，该挡板32是成交错状设置，藉此而形成迷宫机构33，并在迷宫机构33盖设一盖板34，该盖板33是藉由螺固元件35，而固设在汽缸头盖3上，并将迷宫机构33大部分予以遮蔽，引擎1运转所产生而积于汽缸头盖3内的机油油气，会经由盖板33的侧边流入，并进入迷宫机构33内(图示中以箭头来表示油气的流动)，经迷宫机构33内的挡板32的阻绕及导引，再由油气出口31排出至空气滤清器(图中不示出)中回收。习用引擎的吹漏气藉由上结构，固可减少机油油气的排出量，同时可令含有机油油份较重的机油油气被阻挡，使机油不会随吹漏气排出，而能效降低机油经吹漏气的排出及降低引擎排放废气的污染。但，该汽缸头盖3与盖板34皆是金属材料所制成，且该盖板34是以螺固元件35螺固在汽缸头盖3上，而汽缸头盖3是位于引擎1的顶端，当引擎1在不断运转下，引擎1所产生的高温会使汽缸头盖3亦成高温状，因此该盖板34常会因高温而产生变形，当盖板34因高温变形时，即会使盖板34无法再与挡板32紧密的贴合，进而使迷宫机构33无法发挥其功能，导致吹漏气的回收效率不佳。因此习用的引擎吹漏气构造，实有改善的必要，是以如何能提供一有效的引擎吹漏气装置，实为业者亟待解决的一大课题。In order to achieve the purpose of oil and gas separation in conventional locomotive engines, a labyrinth is installed on the cylinder head cover or an oil and gas separation mechanism is installed inside the crankcase. , as shown in Figures 2 and 3, the oil and gas outlet 31 is mainly arranged on the cylinder head cover 3, and a plurality of baffles 32 are arranged inside the cylinder head cover 3, and the baffles 32 are arranged in a staggered shape, thereby And form labyrinth mechanism 33, and set up a cover plate 34 at labyrinth mechanism 33, this cover plate 33 is to be fixed on cylinder head cover 3 by screw fixing element 35, and labyrinth mechanism 33 major parts are covered, The engine oil and oil gas generated by the operation of the engine 1 and accumulated in the cylinder head cover 3 will flow in through the side of the cover plate 33, and enter the labyrinth mechanism 33 (the flow of oil and gas is indicated by the arrow in the figure), and pass through the labyrinth mechanism 33. The inner baffle 32 is blocked and guided, and then the oil and gas outlet 31 is discharged to the air filter (not shown in the figure) for recovery. The blow-by gas of conventional engines can reduce the discharge of oil and gas through the upper structure, and at the same time, it can block the oil and gas with heavy oil content, so that the oil will not be discharged with the blow-by gas, and the energy efficiency will be reduced. Exhaust blow-by gas and reduce the pollution of engine exhaust gas. But the cylinder head cover 3 and the cover plate 34 are all made of metal material, and the cover plate 34 is screwed on the cylinder head cover 3 with the screw fixing element 35, and the cylinder head cover 3 is positioned at the top of the engine 1 , when the engine 1 is running continuously, the high temperature generated by the engine 1 will make the cylinder head cover 3 also become high temperature, so the cover plate 34 will often be deformed due to high temperature, and when the cover plate 34 is deformed due to high temperature, it will cause The cover plate 34 can no longer be closely attached to the baffle plate 32 , so that the labyrinth mechanism 33 cannot perform its function, resulting in poor recovery efficiency of the blow-by gas. Therefore, it is necessary to improve the conventional engine blow-by gas structure, so how to provide an effective engine blow-by gas device is a big problem to be solved urgently by the industry.

【实用新型内容】【Content of utility model】

本实用新型的主要目的，在于提供一种引擎的吹漏气装置，可令机油油气由汽缸头盖的油气出口排出并被回收，能减少汽缸头盖内的机油油气的排出量，进而可减少机油的损耗量，同时可降低引擎排放废气的污染。The main purpose of the present utility model is to provide a blow-by gas device for the engine, which can make the engine oil and oil gas be discharged from the oil and gas outlet of the cylinder head cover and be recovered, which can reduce the discharge of the engine oil and oil gas in the cylinder head cover, thereby reducing The loss of engine oil can also reduce the pollution of engine exhaust gas.

本实用新型的一种引擎的吹漏气装置，其特征在于：其包括一以塑胶材料制成的引擎的汽缸头盖，一塑胶材料制成的盖板，在该汽缸头盖与盖板之间设有迷宫机构，该迷宫机构至少设有一道油气入口，而该汽缸头盖设有一油气出口，该油气出口与迷宫机构相连通，该盖板、汽缸头盖与迷宫机构以熔接方式形成紧密的贴合；藉此，机油油气可藉由油气入口进入迷宫机构内，经迷宫机构的导集，来令机油油气由汽缸头盖的油气出口排出并被回收。A blow-by gas device for an engine of the utility model is characterized in that it comprises a cylinder head cover of an engine made of plastic material, a cover plate made of plastic material, and a cover plate between the cylinder head cover and the cover plate. There is a labyrinth mechanism between them, the labyrinth mechanism is provided with at least one oil and gas inlet, and the cylinder head cover is provided with an oil and gas outlet, and the oil and gas outlet is connected with the labyrinth mechanism, and the cover plate, the cylinder head cover and the labyrinth mechanism are formed by welding. In this way, the oil and gas can enter the labyrinth mechanism through the oil and gas inlet, and after being guided by the labyrinth mechanism, the oil and gas can be discharged from the oil and gas outlet of the cylinder head cover and recovered.

本实用新型的引擎的吹漏气装置，可令机油油气由汽缸头盖的油气出口排出并被回收，能减少汽缸头盖内的机油油气的排出量，进而可减少机油的损耗量，同时可降低引擎排放废气的污染。The air blowing device of the engine of the utility model can make the engine oil and oil gas be discharged from the oil and gas outlet of the cylinder head cover and be recovered, which can reduce the discharge amount of the engine oil oil and gas in the cylinder head cover, thereby reducing the loss of engine oil, and at the same time Reduce engine exhaust pollution.

【附图说明】【Description of drawings】

图1是习知引擎的润滑系统示意图。Fig. 1 is a schematic diagram of a lubrication system of a conventional engine.

图2是习知吹漏气的分解示意图。Fig. 2 is an exploded schematic view of a conventional blow-by gas.

图3是图2的剖视图。FIG. 3 is a sectional view of FIG. 2 .

图4是本实用新型的分解图。Fig. 4 is an exploded view of the utility model.

图5是本实用新型的实施例示意图。Fig. 5 is a schematic diagram of an embodiment of the present invention.

图6是图5的剖视图。FIG. 6 is a sectional view of FIG. 5 .

图7是本实用新型的迷宫机构的另一实施例示意图。Fig. 7 is a schematic diagram of another embodiment of the labyrinth mechanism of the present invention.

图8是本实用新型的迷宫机构又一实施例示意图。Fig. 8 is a schematic diagram of another embodiment of the labyrinth mechanism of the present invention.

【具体实施方式】【Detailed ways】

为能更易于了解本实用新型的结构及所能达成的功效，兹配合图示说明如后：In order to be easier to understand the structure of the present utility model and the effect that can be achieved, it is illustrated as follows:

本实用新型主要是有关于引擎的吹漏气装置，其引擎的润滑系统与习知相同故不再赘述，仅作改良的引擎的吹漏气部份详加说明，合先陈明。The utility model mainly relates to the blow-by gas device of the engine, and the lubrication system of the engine is the same as the prior art so it is not repeated, and only the blow-by gas part of the improved engine is explained in detail, and it is stated first.

首先请参阅图4、5所示，本实用新型引擎的吹漏气装置，主要包括有一是在由塑胶材料所制成的汽缸头盖4、一亦为塑胶材料所制成的盖板6，在该汽缸头盖4与盖板6之间设有一迷宫机构5，该迷宫机构5是由复数个挡板51所构成，另在汽缸头盖4上设有油气出口41，该油气出口41是与迷宫机构5相连通。At first please refer to shown in Fig. 4, 5, the blow-by gas device of the utility model engine mainly comprises a cylinder head cover 4 that is made of plastic material, a cover plate 6 that is also made of plastic material, A labyrinth mechanism 5 is arranged between the cylinder head cover 4 and the cover plate 6. The labyrinth mechanism 5 is composed of a plurality of baffle plates 51. In addition, the cylinder head cover 4 is provided with an oil and gas outlet 41. The oil and gas outlet 41 is Connect with labyrinth mechanism 5.

该迷宫机构5是可由汽缸头盖4上延设复数个挡板51及挡墙52，并藉由该挡板51成交错排设及挡墙52的圈围所构成，该迷宫机构5至少设有一道油气入口53，该油气入口53可供机油油气进入迷宫机构5用，藉此、该机油油气可藉由该迷宫机构5的导集与阻挡，当机油油气进入迷宫机构5后，经迷宫机构5的阻挡而会产生凝结，而可使部分的机油油气再度凝结成机油，在迷宫机构内5已凝结成的机油，则可从油气入口53流回引擎内再利用；其他无法凝结的机油油气则经迷宫机构5的导引，而可从油气出口41排至空气滤清器(图示中不绘出)中回收，藉此能减少汽缸头盖4内的机油油气的排出量，进而可减少机油的损耗量，同时可有降低引擎所排放废气的污染。本实用新型于实施时该迷宫机构5的形成，可如图7所示，于盖板6上一体成形方式设置挡板51及挡墙52，亦即将迷宫机构5设置在盖板6上，藉此更可便利于迷宫机构51的成形。亦可如图8所示，将挡板51及挡墙52分设于盖板6及汽缸头盖4上，当盖板5与汽缸头盖4熔接后，即可形成迷宫机构5。The labyrinth mechanism 5 can be formed by extending a plurality of baffle plates 51 and retaining walls 52 on the cylinder head cover 4, and is formed by the staggered arrangement of the baffle plates 51 and the encirclement of the retaining walls 52. The labyrinth mechanism 5 is at least set There is an oil and gas inlet 53, and the oil and gas inlet 53 can be used for oil and gas entering the labyrinth mechanism 5, whereby the oil and gas can be guided and blocked by the labyrinth mechanism 5. Condensation can be produced due to the blocking of mechanism 5, and part of the machine oil oil gas can be condensed into machine oil again, and the machine oil that 5 has condensed in the labyrinth mechanism can then flow back into the engine from the oil gas inlet 53 for reuse; other machine oils that cannot be condensed The oil gas is then guided by the labyrinth mechanism 5, and can be discharged from the oil gas outlet 41 to the air filter (not drawn in the figure) for recovery, thereby reducing the discharge of the engine oil oil gas in the cylinder head cover 4, and then It can reduce the loss of engine oil, and at the same time reduce the pollution of exhaust gas emitted by the engine. The formation of the labyrinth mechanism 5 during the implementation of the utility model can be as shown in Figure 7, a baffle plate 51 and a retaining wall 52 are provided on the cover plate 6 in an integrally formed manner, that is, the labyrinth mechanism 5 is arranged on the cover plate 6, by This further facilitates the forming of the labyrinth mechanism 51 . Also as shown in FIG. 8 , the baffle plate 51 and the retaining wall 52 are separately arranged on the cover plate 6 and the cylinder head cover 4 . After the cover plate 5 and the cylinder head cover 4 are welded, the labyrinth mechanism 5 can be formed.

该盖板6亦是由塑胶材料所制成，盖板6的面积大略与迷宫机构5所界定出的面积相等，该盖板6恰可遮盖住迷宫机构5，藉此可确保迷宫机构5能发挥应有的功能。The cover plate 6 is also made of plastic material, the area of the cover plate 6 is roughly equal to the area defined by the labyrinth mechanism 5, and the cover plate 6 can just cover the labyrinth mechanism 5, thereby ensuring that the labyrinth mechanism 5 can function as it should.

如图5、6所示，本实用新型的实施，藉由汽缸头盖4及盖板6皆是由塑胶材料所制成，因此可藉由以振动熔接或压合熔接方式，来令盖板6、汽缸头盖4可以紧密的贴接在挡板51及挡墙52上；藉此，当引擎运转所产生而积于汽缸头盖4内的机油油气，会经由油气入口53进入迷宫机构6内，该机油油气可藉由该迷宫机构5的导集与阻挡，当机油油气进入迷宫机构5后，经迷宫机构5的阻挡而会产生凝结，而可使部分的机油油气再度凝结成机油，在迷宫机构内5已凝结成的机油，则可从油气入口53流回引擎内再利用；其他无法凝结的机油油气则经迷宫机构5的导引，而可从油气出口41排至空气滤清器(图示中不绘出)中回收。As shown in Figures 5 and 6, the implementation of the utility model is that the cylinder head cover 4 and the cover plate 6 are all made of plastic materials, so the cover plate can be made by vibration welding or compression welding. 6. The cylinder head cover 4 can be tightly attached to the baffle plate 51 and the retaining wall 52; thereby, when the engine is running, the oil and gas accumulated in the cylinder head cover 4 will enter the labyrinth mechanism 6 through the oil and gas inlet 53 Inside, the engine oil and gas can be guided and blocked by the labyrinth mechanism 5. When the engine oil and gas enter the labyrinth mechanism 5, they will condense after being blocked by the labyrinth mechanism 5, so that part of the engine oil and gas can be condensed into engine oil again. The engine oil that has condensed in the labyrinth mechanism 5 can flow back to the engine from the oil-air inlet 53 for reuse; other non-condensable engine oil oil can be guided by the labyrinth mechanism 5 and can be discharged to the air filter from the oil-air outlet 41 Recycling in the container (not shown in the figure).

本实用新型功效在于，该汽缸头盖4及盖板6皆是由塑胶材料所制成，再藉由以振动熔接或压合熔接方式，来令汽缸头盖4、盖板6及迷宫机构5形成紧密的贴接，以避免盖板6因引擎的高温所造成的变形，导致丧失与挡板51与挡墙52的紧密贴合，进而可使及迷宫机构5发挥其应有的功效，引擎可有效的减少机油油气的排出量，同时可令含有机油油份较重的机油油气被阻挡，使机油不会随吹漏气排出，可有效降低机油经吹漏气的排出，进而可减少机油的损耗量，并可有降低引擎排放废气的污染。The effect of the present utility model is that the cylinder head cover 4 and the cover plate 6 are all made of plastic materials, and then the cylinder head cover 4, the cover plate 6 and the labyrinth mechanism 5 are formed by vibration welding or compression welding. Form a tight fit to avoid the deformation of the cover plate 6 caused by the high temperature of the engine, resulting in the loss of the close fit with the baffle plate 51 and the retaining wall 52, so that the labyrinth mechanism 5 can play its due effect, and the engine It can effectively reduce the discharge of oil and gas, and at the same time, it can block the oil and gas with heavy oil content, so that the oil will not be discharged with the blow-by gas, which can effectively reduce the discharge of the engine oil through the blow-by gas, and then reduce the oil. The amount of loss, and can reduce the pollution of engine exhaust gas.

【主要元件符号说明】[Description of main component symbols]

1引擎 11燃烧室 12活塞1 Engine 11 Combustion Chamber 12 Piston

13汽缸 14曲轴13 cylinder 14 crankshaft

15汽缸头 151凸轮轴15 The cylinder head 151 camshaft

2机油箱 21机油泵 22轮送管2 oil tank 21 oil pump 22 wheel delivery pipe

3汽缸头盖 31油气出口 32挡板3 cylinder head cover 31 oil and gas outlet 32 baffle

33迷宫机构 34盖板

35螺固元件

4汽缸头盖 41油气出口 54 cylinder head cover 41 oil and gas outlet 5

迷宫机构 51挡板 52挡墙Labyrinth Mechanism 51 Baffle 52 Retaining Wall

53油气入口53 oil and gas inlet

6盖板6 cover

Claims

1. A blow-by gas device for an engine, characterized in that: it comprises a cylinder head cover of an engine made of a plastic material, a cover plate made of a plastic material, and a cover plate is arranged between the cylinder head cover and the cover plate There is a labyrinth mechanism, the labyrinth mechanism is provided with at least one oil and gas inlet, and the cylinder head cover is provided with an oil and gas outlet, and the oil and gas outlet is connected with the labyrinth mechanism, and the cover plate, the cylinder head cover and the labyrinth mechanism form a tight bond by welding combine.

2. The blow-by gas device for an engine according to claim 1, wherein the labyrinth mechanism is composed of a baffle plate and a retaining wall.

3. The blow-by gas device for an engine as claimed in claim 2, wherein the baffle plate and the baffle wall are arranged on the cylinder head cover.

4. The blow-by gas device for an engine as claimed in claim 2, wherein the baffle plate and the baffle wall are arranged on the cover plate.

5 . The blow-by gas device for an engine as claimed in claim 2 , wherein the baffle plate and the baffle wall are separately arranged on the cylinder head cover and the cover plate. 5 .

6 . The blow-by gas device for an engine according to claim 1 , wherein the cover plate, the cylinder head cover and the labyrinth mechanism are welded by vibration welding. 7 .

7 . The blow-by gas device for an engine as claimed in claim 1 , wherein the cover plate, the cylinder head cover and the labyrinth mechanism are welded by compression welding. 8 .