CN102052191A - Double-layer rocker arm chamber cover with maze-structured condensing space - Google Patents
Double-layer rocker arm chamber cover with maze-structured condensing space Download PDFInfo
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- CN102052191A CN102052191A CN 201110030686 CN201110030686A CN102052191A CN 102052191 A CN102052191 A CN 102052191A CN 201110030686 CN201110030686 CN 201110030686 CN 201110030686 A CN201110030686 A CN 201110030686A CN 102052191 A CN102052191 A CN 102052191A
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- rocker arm
- chamber cover
- arm chamber
- shell
- inner bag
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a double-layer rocker arm chamber cover with a maze-structured condensing space, which has the structure that an outer shell and an inner liner are integrally welded to form a rocker arm chamber cover; the space interlayer between the outer shell and the inner liner forms a maze type oil-air condensing cavity. The surface of the rocker arm chamber cover provided by the invention is provided with an oil filling port; an air outlet is arranged at the right end of the outer shell; a through hole is formed in the interlayer between the outer shell and the inner liner, and a cushion block is arranged in the interlayer between the outer shell and the inner liner; a bolt passes through the through hole and is fixed with a respirator arranged on the upper surface of the rocker arm chamber cover; the circumference of the inner liner is provided with a notch and a boss bulged through punching; and the gaps between the notch and the boss of the inner liner and the outer shell are taken as the oil-air inlet channel. Under the effect of the pressure difference between the crank case and the atmosphere, the oil-air in a crank case flows into the condensing cavity between the inner and outer layers of the rocker arm chamber cover for cooling and is adhered on the inner side wall of the rocker arm chamber cover, and then oil drops flow back to an engine along the inner wall, thereby completing the separation of oil and air. The rocker arm chamber cover provided by the invention can be directly taken as an air interchange device of the crank case and does not need to additionally install the respirator. The device provided by the invention occupies small peripheral space of the engine, but has obvious condensing effect, can adapt to multiple types of engines.
Description
Technical field
The invention belongs to engine components, be specifically related to a kind of rocker arm chamber cover with condensation.
Background technique
The rocker arm chamber cover of motor is called for short cylinder head cover, is arranged in engine cylinder cover and above the rocking arm, is generally single layer structure.The rocker arm chamber cover is the indispensable annex of motor, and its major function is exactly the working space that a sealing is provided to parts such as rocking arm, valve, valve spring.Because be full of oil gas in the rocker arm chamber, adopting the sealing of rocker arm chamber cover and cylinder cap is exactly to avoid engine interior machine oil to spill, and foreign material such as external dust enter engine interior.Cover engine rocker chamber proposed by the invention, not only satisfies the fundamental function of rocker arm chamber cover, can also strengthen cooling to the oil gas in the rocker arm chamber cover, optimizes the effect of Oil-gas Separation.
Summary of the invention
The objective of the invention is, a kind of double-deck rocker arm chamber cover that makes rocker arm bonnet sidewall and top have the labyrinth structure condensation space is provided.
Below in conjunction with accompanying drawing structural principle of the present invention is described: the double-deck rocker arm chamber cover that has the labyrinth structure condensation space has shell, inner bag, oil filler, air outlet, cushion block, bolt, resuscitation apparatus etc.The design proposal of this rocker arm chamber cover is: the peripheral end face of shell is provided with male and fomale(M﹠F), and the end face of inner bag is provided with convex surface, and being welded as a whole by shell and inner bag constitutes the rocker arm chamber cover.Key is that the space interlayer between inner bag and the shell constitutes the oil gas condensation cavity, and oil gas carries out Oil-gas Separation by condensation cavity.The inner bag wall is provided with the concave station of protuberance in gap and the punching press, and the space between inner bag gap and concave station and the shell is as gas channel.Be designed to the mazy type convex-concave structure on inner bag top and wall, cooperate the back to form the mazy type cooling chamber between mazy type convex-concave and the shell.In order to reach the effect of strengthening Oil-gas Separation; rocker arm chamber cover surface is provided with oil filler; the shell right-hand member is provided with the air outlet; between inner bag gap and concave station and the shell and around the inner bag with the space of shell; both can be used as the passage that oil gas enters condensation cavity, also can be used as condensation of oil flows back to crankcase from the condensation cavity wall passage (as Fig. 1, Fig. 5, Fig. 6).The rocker arm chamber cover is except having good oil gas separation, another key is exactly a rocker arm chamber cover form structure compactness, on means of fixation, have through hole and be provided with cushion block between shell and inner bag interlayer, purpose is that bolt is passed the fixedly resuscitation apparatus of rocker arm chamber cover upper surface (as Fig. 2) of through hole.Resuscitation apparatus does not possess the condensation function, and its effect is to open when oil gas reaches certain pressure, and the balance crankshaft case is pressed, and plays the one-way valve effect of opened by pressure.This rocker arm chamber cover also can external resuscitation apparatus, and the gas emptying after directly will separating gets final product.Shell wall and the corresponding position of inner bag wall concave surface stamp out recessed prominent face, and some specific shapes of rocker arm chamber cover shell, all consider the external engine space and design.So this condensation cavity labyrinth structure makes the space strengthen relatively, and flow process extends relatively.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is rocker arm chamber cover of the present invention outside three-dimensional structure diagram;
Fig. 3 is an inner bag three-dimensional structure diagram of the present invention.
Fig. 4 is a rocker arm chamber cover elevated bottom perspective structural representation of the present invention.
Fig. 5 is TV structure figure at the bottom of the rocker arm chamber cover of the present invention.
Embodiment
Below in conjunction with accompanying drawing and by embodiment structure of the present invention is described in detail.The double-deck rocker arm chamber cover that has the labyrinth structure condensation space, its structural design is: the peripheral end face of shell 1 is provided with male and fomale(M﹠F), the end face of inner bag 2 is provided with convex surface, being welded as a whole by the convex surface of inner bag 2 and shell 1 corresponding position constitutes the rocker arm chamber cover, and the space interlayer between shell 1 and the inner bag 2 constitutes oil gas condensation cavity (as Fig. 1).Rocker arm chamber cover surface is provided with oil filler 3, and shell 1 right-hand member is provided with air outlet 4, has through hole 5 and is provided with cushion block 6 (as Fig. 2) between shell and inner bag 2 interlayers.It is fixing with the resuscitation apparatus 8 of rocker arm chamber cover upper surface that bolt 7 passes through hole 5, and inner bag 2 walls are provided with the concave station 10 of protuberance in gap 9 and the punching press, and the space between inner bag gap and concave station and the shell is as gas channel (as Fig. 3 Fig. 4).Shell 1 wall and inner bag wall concave station 10 corresponding positions also stamp out concave surface.Rocker arm chamber cover bottom is a flange arrangement, is provided with bolt hole 11 all around, seals (as Fig. 2) with sealing gasket between bottom and the engine cylinder cover.
Rocker arm chamber cover shell and inner bag are impact briquetting, and the male and fomale(M﹠F) of the convex surface on inner bag top and shell side is welded to form the rocker arm chamber cover, and shell is higher slightly than inner casing.The boss upper bevel of rocker arm chamber cover inner bag sidewall is bigger, and the corresponding position of rocker arm bonnet shell chamfering is less relatively, and rocker arm chamber cover inner bag has bigger space with after rocker arm chamber cover shell cooperates in middle upper portion like this.The top convex surface of rocker arm bonnet inner bag cooperates the concavo-convex spatial channel of formation with the rocker arm bonnet outer casing top surface, rocker arm bonnet inner bag wall concave surface and rocker arm bonnet shell wall form gas channel; The oil gas condensation cavity (as shown in Figure 1) of having formed the mazy type space by space between the rocker arm chamber cover internal and external layer.Installing cushion block between shell and inner bag additional is to strengthen being subjected to force intensity for fixing external resuscitation apparatus.The oil gas that motor produces at work is under the effect of the pressure reduction in the crankcase and the external world, the gap by the rocker arm bonnet lower end and the space of inner bag and shell enter the mazy type space condensation cavity in the rocker arm chamber cover, because of the temperature of the rocker arm chamber cover temperature less than crankcase oil gas, oil gas cools off in condensation cavity and sticks on the madial wall of rocker arm chamber cover inside and outside shell.Gap both as the oil gas inlet, also as the condensation oil outlet, was condensed into oil droplet and was flowed back in the engine crankcase by rocker arm chamber cover lower end along inwall, finished the separation of oil gas.This rocker arm chamber cover can not install resuscitation apparatus additional directly as crankcase ventilator yet, only needs to connect sebific duct at place, rocker arm chamber cover air outlet, with the direct emptying of gas after separating.
Characteristics of the present invention and beneficial effect be, the height of rocker arm chamber cover and width dimensions increase little, but gas stream cross the condensation chamber space of labyrinth structure and obviously strengthen, and flow process lengthens relatively, so that the effect highly significant of condensation. The design comparison science of this device profile, it is little to take up room, and can adapt to the high-end engine of configuration polytype.
Claims (2)
1. the double-deck rocker arm chamber cover that has the labyrinth structure condensation space, has rocker arm chamber cover shell, inner bag, oil filler, the air outlet, cushion block, bolt, resuscitation apparatus, the peripheral end face that it is characterized in that shell (1) is provided with male and fomale(M﹠F), the end face of inner bag (2) is provided with convex surface, be welded as a whole by the convex surface of inner bag (2) and the corresponding position of shell (1) and constitute the rocker arm chamber cover, space interlayer between inner bag (2) and the shell (1) constitutes the oil gas condensation cavity; rocker arm chamber cover surface is provided with oil filler (3); shell (1) right-hand member is provided with air outlet (4); have through hole (5) between shell and inner bag (2) interlayer and be provided with cushion block (6); it is fixing with the resuscitation apparatus (8) of rocker arm chamber cover upper surface that bolt (7) passes through hole (5); inner bag (2) wall is provided with the concave station (10) of protuberance in gap (9) and the punching press, and the space between inner bag gap and concave station and the shell is as gas channel.
2. according to the described double-deck rocker arm chamber cover that has the labyrinth structure condensation space of claim 1, it is characterized in that described shell (1) wall and the corresponding position of described inner bag wall concave station (10) also stamp out concave surface, described rocker arm chamber cover bottom is a flange arrangement, be provided with bolt hole (11) all around, seal with sealing gasket between bottom and the engine cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110030686 CN102052191A (en) | 2011-01-28 | 2011-01-28 | Double-layer rocker arm chamber cover with maze-structured condensing space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110030686 CN102052191A (en) | 2011-01-28 | 2011-01-28 | Double-layer rocker arm chamber cover with maze-structured condensing space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102052191A true CN102052191A (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110030686 Pending CN102052191A (en) | 2011-01-28 | 2011-01-28 | Double-layer rocker arm chamber cover with maze-structured condensing space |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829801A (en) * | 2017-11-29 | 2018-03-23 | 安徽全柴动力股份有限公司 | A kind of cover assembly of cylinder head |
| CN110318906A (en) * | 2019-07-20 | 2019-10-11 | 徐海燕 | A kind of valve mechanism cover with refrigerating function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009863A (en) * | 1997-10-20 | 2000-01-04 | Honda Giken Kogyo Kabushiki Kaisha | Positive crankcase ventilation apparatus |
| JP2006336619A (en) * | 2005-06-06 | 2006-12-14 | Toyota Motor Corp | Internal combustion engine and oil supply method for internal combustion engine |
| JP2009013942A (en) * | 2007-07-09 | 2009-01-22 | Honda Motor Co Ltd | Breather device of engine |
| CN201437739U (en) * | 2009-07-28 | 2010-04-14 | 广西玉柴机器股份有限公司 | Oil gas pre-separator |
| CN101865008A (en) * | 2010-01-29 | 2010-10-20 | 东风朝阳柴油机有限责任公司 | Pressure control valve type engine crankcase ventilator |
-
2011
- 2011-01-28 CN CN 201110030686 patent/CN102052191A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009863A (en) * | 1997-10-20 | 2000-01-04 | Honda Giken Kogyo Kabushiki Kaisha | Positive crankcase ventilation apparatus |
| JP2006336619A (en) * | 2005-06-06 | 2006-12-14 | Toyota Motor Corp | Internal combustion engine and oil supply method for internal combustion engine |
| JP2009013942A (en) * | 2007-07-09 | 2009-01-22 | Honda Motor Co Ltd | Breather device of engine |
| CN201437739U (en) * | 2009-07-28 | 2010-04-14 | 广西玉柴机器股份有限公司 | Oil gas pre-separator |
| CN101865008A (en) * | 2010-01-29 | 2010-10-20 | 东风朝阳柴油机有限责任公司 | Pressure control valve type engine crankcase ventilator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829801A (en) * | 2017-11-29 | 2018-03-23 | 安徽全柴动力股份有限公司 | A kind of cover assembly of cylinder head |
| CN110318906A (en) * | 2019-07-20 | 2019-10-11 | 徐海燕 | A kind of valve mechanism cover with refrigerating function |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |