CN205243618U - Automobile engine - Google Patents
Automobile engine Download PDFInfo
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- CN205243618U CN205243618U CN201520984432.0U CN201520984432U CN205243618U CN 205243618 U CN205243618 U CN 205243618U CN 201520984432 U CN201520984432 U CN 201520984432U CN 205243618 U CN205243618 U CN 205243618U
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Abstract
The problem poor for overcoming among the prior art preparation technology nature of engine, that the rejection rate is high, the utility model provides an automobile engine. It includes cylinder body, jar pad and cylinder cap, water course in the cylinder body includes inner lead and outer water course, be equipped with the water inlet of introducing the cooling water on the inner lead, be equipped with the delivery port of drawing the cooling water on the outer water course, the inner lead surrounds outside the cylinder, and outer water course lies in the side of admitting air of cylinder body, water inlet and delivery port all set up on the face of admitting air of cylinder body, the inner lead of cylinder body exhaust side still is equipped with a plurality of mouths of a river of going up, the jar stacks up and is equipped with a plurality of water hole and a plurality of water return hole of going up, being equipped with a plurality of water inlets on the water course of cylinder cap exhaust side, being equipped with a plurality of return water mouths on the water course of the side of admitting air, the last water hole that the water inlet stacked up through the jar communicates with each other with the last mouth of a river on the cylinder body, and the return water mouth communicates with each other through water return hole and the outer water course that the jar stacked up. This kind of automobile engine structure is simpler, and preparation technology nature is better, greatly reduced its rejection rate, effectively reduced manufacturing cost.
Description
Technical field
The utility model relates to automobile engine field, especially refers to the field of cooling in automobile engine.
Background technology
Automobile engine comprises 2 mechanisms and 5 large systems, i.e. toggle, valve actuating mechanism, fuel oilFeed system, lubricating system, cooling system, ignition system and startup system; Automobile engine is mainly by cylinderThe structure compositions such as body, cylinder cap, cylinder pad, piston, connecting rod, bent axle, flywheel, cylinder body and cylinder cap are enginesCore component, be " parent " of whole engine assembly; In cylinder body, be provided with cylinder, work is housed in cylinderPlug, connecting rod, bent axle etc., be equipped with valve actuating mechanism in cylinder cap, cylinder body and cylinder cap be as a part for combustion chamber,Bear very large thermic load. In order to protect cylinder cap, cylinder body, piston and machine oil not to lose efficacy because of overheated, automobileEngine generally adopts cooling fluid (or claiming cooling water) to control the temperature of cylinder body and cylinder cap, therefore, and at cylinderWater jacket is set to form cooling water channel (or cooling water channel) in body and cylinder cap, cooling fluid is in this cooling water channelFlow, with cooling said structure. Wherein, the worst part of engine thermal operating mode is cylinder cap, water pump actingMust ensure that cylinder cap is enough cooling, therefore cylinder cap even cooling can make to make full use of the cooling of water pump and doMerit.
Be limited to and arrange and structural requirement, general engine can only be realized on cylinder cap cooling successively to last cylinder from first cylinder,Be that those skilled in the art's alleged " vertical stream " are cooling, this kind of type of cooling causes the each cylinder inhomogeneous cooling of engine,And for last cylinder obtains enough coolingly, make first cylinder supercooling, and then taken away too much heat and reducedThe acting of engine. For this reason, as improved mode, existing part engine has adopted cooling fluid " crossing current "Mode, its cooling fluid enters from the water inlet of cylinder body, via the backward cylinder head that enters of crossing current passage of cylinder body,Flow out from delivery port via the crossing current passage of cylinder cap, this delivery port can design on cylinder cap or cylinder body again,But, need on cylinder body, design complicated water jacket and carry out direct coolant and move towards to realize crossing current, this kind startsThe processing property of machine is poor, and percent defective is high.
Utility model content
In prior art, need on engine, design complicated water channel and carry out direct coolant and move towards with reality for overcomingNow crossing current, the processing property of this kind of engine is poor, the problem that percent defective is high, the utility model provides onePlant automobile engine.
The utility model provides a kind of automobile engine, comprises cylinder body, cylinder pad and cylinder cap; Described cylinder pad positionBetween described cylinder body and cylinder cap; In described cylinder body and cylinder cap, be equipped with the water channel for coolant flow;
On described cylinder body, be arranged with to back end some cylinders from front end face; In water channel in described cylinder body comprisesWater channel and outer water channel;
Described inner lead is provided with introduces the water inlet of cooling fluid, and described outer water channel is provided with draws cooling fluidDelivery port; Described inner lead is looped around outside described cylinder, and described outer water channel is positioned at the air inlet side of described cylinder body;Described water inlet and delivery port are all arranged in the air inlet face of described cylinder body; The inner lead of described cylinder body exhaust sideAlso be provided with some filling pipe ends;
Described cylinder pad is provided with some upper water holes and some backwater holes;
The water channel of described cylinder cap exhaust side is provided with some water inlets, and air inlet side is provided with some water return outlets, described inWater inlet communicates with the filling pipe end on described cylinder body by the upper water hole on described cylinder pad, and described water return outlet passes throughBackwater hole on described cylinder pad communicates with described outer water channel.
The automobile engine that the utility model provides, can effectively guide the trend of direct coolant, by cylinderInner lead and outer water channel are set on body, make cooling fluid after inner lead enters cylinder cap, make cooling fluid first coldBut the exhaust side of cylinder cap (temperature is higher), and flow to air inlet side from the exhaust side of each cylinder, be then back to cylinderThe outer water channel of body. Make like this exhaust side that cylinder cap thermic load is the highest obtain at first cooling, and each cylinder is coldBut effect is even, and cooling water pump acting reaches optimal effectiveness, the useless acting of having avoided " vertical stream " to produce,Thereby improve the power output of engine. The Vehicle Engine Structure of this kind of structure is simpler, preparation workSkill is better, is more simple and easy to manufacture, and greatly reduces its percent defective, effectively reduces production cost.
Preferably, the number of described filling pipe end, upper water hole, backwater hole, water inlet and water return outlet and cylinderNumber is identical.
Preferably, on described cylinder body, the front end face of water inlet and described cylinder body is the angle of 20 °～60 °. So,The flow that can make cooling fluid enter cylinder body exhaust side through air inlet side water channel and exhaust side water channel is more even.
Preferably, the upper water hole area on described cylinder pad increases gradually from the front end face of cylinder body direction to back endGreatly.
Preferably, the number of described cylinder is 3-12.
Preferably, the number of described cylinder is 4, the side to back end of the front end face from cylinder body on described cylinder padArea Ratio to the each upper water hole arranging is (0.75-0.95): (0.8-0.98): (0.85-1): 1. By design cylinderOn pad, first cylinder, to the upper water hole Area Ratio of last cylinder, can further accurately be controlled the interior each cylinder cooling fluid of the cylinder cap of flowing through equalEven equating.
Preferably, on described cylinder pad, arrange from the front end face of cylinder body direction to back end each the face in water holeLong-pending than being 0.905:0.957:0.998:1.
Preferably, described delivery port is arranged on the centre position of described cylinder body air inlet face. Can make like this cylinder capOn the flow through water resistance equalization of cooling fluid of each cylinder, coolant rate is consistent, can be further even cooling each cylinder.
Preferably, described inner lead comprises and is separately positioned on the exhaust side water channel of cylinder body exhaust side and is arranged on cylinderThe air inlet side water channel of body air inlet side; Described filling pipe end is arranged on described exhaust side water channel.
Brief description of the drawings
Fig. 1 is the automobile engine exploded perspective schematic diagram providing in the utility model detailed description of the invention;
Fig. 2 is the cylinder head elevational schematic view providing in the utility model detailed description of the invention;
Fig. 3 is cylinder block and the head gasket assembling schematic perspective view providing in the utility model detailed description of the invention;
Fig. 4 is the cylinder block schematic perspective view providing in the utility model detailed description of the invention;
Fig. 5 is the head gasket schematic top plan view providing in the utility model detailed description of the invention;
Fig. 6 is that the cylinder block master who provides in the utility model detailed description of the invention looks schematic diagram;
Fig. 7 is A-A generalized section in Fig. 6;
Fig. 8 is B place enlarged diagram in Fig. 7.
Wherein, 1, cylinder body; 2, cylinder pad; 3, cylinder cap; 10, cylinder; 11, water inlet; 12, delivery port;13, inner lead; 14, outer water channel; 1a, front end face; 1b, rear end face; 1c, deflation area; 1d, air inlet face;2a, upper water hole; 2b, backwater hole; 131, air inlet side water channel; 132, exhaust side water channel; 13a, filling pipe end;3a, water inlet; 3b, water return outlet.
Detailed description of the invention
For technical problem, technical scheme and beneficial effect that the utility model is solved clearer,Below in conjunction with drawings and Examples, the utility model is further elaborated. Should be appreciated that hereinDescribed specific embodiment is only in order to explain the utility model, and is not used in restriction the utility model.
Embodiment
This example will be carried out specific explanations explanation to the disclosed automobile engine of the utility model, as shown in Figure 1,Comprise cylinder body 1, cylinder pad 2 and cylinder cap 3; Described cylinder pad 2 is between described cylinder body 1 and cylinder cap 3; DescribedIn cylinder body 1 and cylinder cap 3, be equipped with the water channel for coolant flow;
For making those skilled in the art further understand the utility model, first the direction of engine is described,As shown in Fig. 4, Fig. 7, front side, the paper left and right sides and rear side, the face of its front side and rear side is called front endFace 1a and rear end face 1b, the outside side of paper, owing to being a side of engine charge, is called air inlet side, paperBe a side of engine exhaust towards an interior side, be called exhaust side, therefore, claim the face of its air inlet one side to claimFor air inlet face 1d, the face of exhaust one side is called deflation area 1c. Be that in Fig. 4, the inside one side of paper is deflation area1c, the outside one side of paper is air inlet face 1d.
As shown in Figure 3, Figure 4, described cylinder body 1 from front end face 1a to back end 1b be arranged with some cylinders10; Water channel in described cylinder body 1 comprises inner lead 13 and outer water channel 14; Above-mentioned cylinder 10 opsition dependents in the pastThe mode that end face is arranged to back end, can claim successively each cylinder 10 be the first cylinder (or first cylinder), the second cylinder,The 3rd cylinder ... tail cylinder (or last cylinder). While describing the fore-and-aft direction of cylinder body 1, from front end face 1a 1b to back endThe direction of arranging is also the direction of first cylinder to tail cylinder, in the time describing the direction of cylinder pad 2 or cylinder cap 3, also canDescribe with reference to this kind of mode.
As shown in Figure 1, Figure 3, described inner lead 13 is provided with introduces the water inlet 11 of cooling fluid, described outsideWater channel 14 is provided with the delivery port 12 of drawing cooling fluid; Described inner lead 13 is looped around outside described cylinder 10,Described outer water channel 14 is positioned at the air inlet side of described cylinder body 1; Described water inlet 11 and delivery port 12 are all arranged onOn the air inlet face 1d of described cylinder body 1; The inner lead 13 of described cylinder body 1 exhaust side is also provided with some filling pipe ends13a；
Wherein, as shown in Figure 5, described cylinder pad 2 is provided with some upper water hole 2a and some backwater hole 2b;
Wherein, as shown in Fig. 2, Fig. 6, Fig. 7, the water channel of described cylinder cap 3 exhaust sides is provided with some water inletsMouth 3a, the water channel of air inlet side is provided with some water return outlet 3b, and described water inlet 3a passes through on described cylinder pad 2Upper water hole 2a communicates with the filling pipe end 13a on described cylinder body 1, and described water return outlet 3b is by described cylinder pad 2On backwater hole 2b communicate with described outer water channel 14.
Particularly, described inner lead 13 comprises exhaust side water channel 132 Hes that are separately positioned on cylinder body 1 exhaust sideBe arranged on the air inlet side water channel 131 of cylinder body 1 air inlet side; Described filling pipe end 13a is arranged on described exhaust side water channelOn 132.
At present, cylinder 10 numbers on general engine are 3-12. Such as, conventional cylinder number have 3,4,5,6,8,10,12 cylinders. This example explains as example to be provided with 4 cylinders 10 on this cylinder body 1.
For uniform cooling each cylinder 10, described filling pipe end 13a, upper water hole 2a, backwater hole 2b, enterThe number of mouth of a river 3a and water return outlet 3b is identical with the number of cylinder 10.
Applicant finds in R&D process, and the angle of water inlet 11 arranges important, and it is reasonably setAngle, can ensure that the flow on inner lead 13 is more even. First, this water inlet 11 is arranged on first cylinderNear, make its cooling fluid divide from both direction and flow and be full of inner lead 13 from first cylinder position, cylinder 10 is enteredRow is cooling. For this reason, applicant is further optimized the angle of water inlet 11, as Fig. 7, Fig. 8 instituteShow, on described cylinder body 1, water inlet 11 is connected with inner lead 13, makes cooling fluid through and two left to the rightApproach, enters respectively air inlet side water channel 131 and exhaust side water channel 132. Due to air inlet side water channel 131 with respect toExhaust side water channel 132 is longer, for cooling fluid is entered through air inlet side water channel 131 and exhaust side water channel 132The flow of cylinder body 1 exhaust side is more even, and this water inlet 11 is 20 ° with the front end face 1a of described cylinder body 1The angle of～60 °.
, evenly equate in order further accurately to control the interior each cylinder cooling fluid of cylinder cap 3 of flowing through meanwhile, can pass throughOn design cylinder pad 2, first cylinder is recently controlled to the upper water hole 2a area of last cylinder. According to each upper water hole 2a and water inlet11 distance, the each upper water hole 2a area on described cylinder pad 2 is from the front end face 1a 1b to back end of cylinder body 1Direction increase gradually. Also be upper water hole 2a area on described cylinder pad 2 from cylinder body 1 first cylinder to tail cylinderDirection increases gradually. As shown in Figure 5, for the interior cooling fluid of each inner lead 13 is flowed into by each upper water hole 2aFlow in cylinder cap 3 is more even, also can further optimize the Area Ratio of each upper water hole 2a, and this Area Ratio existsAfter water inlet 11 is determined with the front end face 1a angle of described cylinder body 1, also determine ratio by simulation analysisSize, taking 4 cylinders 10 as example, on described cylinder pad 2 from the front end face 1a of cylinder body 1 1b to back endThe Area Ratio of the each upper water hole 2a that direction arranges is (0.75-0.95): (0.8-0.98): (0.85-1): 1, in other wordsSaying, is also upper water hole 2a on described cylinder pad 2 area from the first cylinder (first cylinder) to the 4th cylinder (tail cylinder)Than being (0.75-0.95): (0.8-0.98): (0.85-1): 1. Particularly, in this example, analyze through optimizing, thisExample provides a kind of concrete Area Ratio. Upper water hole 2a on described cylinder pad 2 is from the area of the first cylinder to the four cylindersThan being 0.905:0.957:0.998:1. In this example, be not particularly limited above-mentioned upper water hole 2a and backwater holeThe shape of 2b, its shape can be the shape such as circular or square.
Meanwhile, to its delivery port 12, also have the space that can further optimize, described delivery port 12 is arranged on instituteState the centre position of cylinder body 1 air inlet face 1d. Wherein delivery port 12 designs centre at engine (for 4The engine of cylinder, that is to say, delivery port 12 is arranged between the 2nd and the 3rd cylinder 10), thisSample can make to flow through on the cylinder cap 3 water resistance equalization of cooling fluid of each cylinder 10, coolant rate is consistent, can enterOne step is cooling each cylinder 10 evenly.
The cooling system course of work of this engine is described below:
As shown in Figure 4, engine coolant out enters cylinder body 1 through water inlet 11 by cooling water pump, andThrough air inlet side water channel 131 and 132 two water routes of exhaust side water channel from the row of engine charge side inflow engineGas side, cooling fluid via filling pipe end 13a by the water inlet 3a on upper water hole 2a and cylinder cap on cylinder pad 2Enter in cylinder cap 3, wherein, by optimizing water inlet 11 angles of cylinder body 1 and the upper water hole 2a of cylinder pad 2Area Ratio, can further control cooling fluid more fifty-fifty from 4 of cylinder pad 2 water hole 2a enter cylinder cap3。
Cooling fluid enters after cylinder cap 3, by the air inlet side that flows to cylinder cap 3 from the exhaust side of cylinder cap 3 simultaneously, realShow " crossing current " of cylinder cap and reached the evenly cooling of cylinder cap. Cooling fluid is at the air inlet side of cylinder cap 3, warpBackwater hole 2b on water return outlet 3b and cylinder pad 2 on cylinder cap 3 is back to the outer water channel 14 of cylinder body 1, andFlow out engine body by delivery port 12 eventually.
The automobile engine that this example provides, can effectively guide the trend of direct coolant, by cylinder body 1Inner lead 13 and outer water channel 14 are set, make cooling fluid after inner lead 13 enters cylinder cap 3, make coolingLiquid is the exhaust side (temperature is higher) of cooling cylinder cap 3 first, and flows to air inlet side from the exhaust side of each cylinder, thenBe back to the outer water channel 14 of cylinder body 1. Make so the highest exhaust side of cylinder cap 3 thermic loads obtain at first cooling,And the cooling effect of each cylinder is even, cooling water pump acting reaches optimal effectiveness, has avoided " vertical stream " institute to produceRaw useless acting, thus the power output of engine improved. The Vehicle Engine Structure of this kind of structure moreAdd simply, processing property is better, is more simple and easy to manufacture, and greatly reduces its percent defective, effectively reducesProduction cost.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model,All any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., all shouldWithin being included in protection domain of the present utility model.
Claims (9)
1. an automobile engine, comprises cylinder body, cylinder pad and cylinder cap; Described cylinder pad is positioned at described cylinder body and cylinderBetween lid; In described cylinder body and cylinder cap, be equipped with the water channel for coolant flow;
It is characterized in that, on described cylinder body, be arranged with to back end some cylinders from front end face; In described cylinder bodyWater channel comprise inner lead and outer water channel;
Described inner lead is provided with introduces the water inlet of cooling fluid, and described outer water channel is provided with draws cooling fluidDelivery port; Described inner lead is looped around outside described cylinder, and described outer water channel is positioned at the air inlet side of described cylinder body;Described water inlet and delivery port are all arranged in the air inlet face of described cylinder body; The inner lead of described cylinder body exhaust sideAlso be provided with some filling pipe ends;
Described cylinder pad is provided with some upper water holes and some backwater holes;
The water channel of described cylinder cap exhaust side is provided with some water inlets, and the water channel of air inlet side is provided with some backwaterMouthful, described water inlet communicates with the filling pipe end on described cylinder body by the upper water hole on described cylinder pad, described timeThe mouth of a river communicates with described outer water channel by the backwater hole on described cylinder pad.
2. automobile engine according to claim 1, is characterized in that, described filling pipe end, upper water hole,The number of backwater hole, water inlet and water return outlet is identical with the number of cylinder.
3. automobile engine according to claim 2, is characterized in that, on described cylinder body water inlet withThe front end face of described cylinder body is the angle of 20 °～60 °.
4. automobile engine according to claim 3, is characterized in that, the each upper water on described cylinder padHole area increases gradually from the front end face of cylinder body direction to back end.
5. automobile engine according to claim 3, is characterized in that, the number of described cylinder is 3-12Individual.
6. automobile engine according to claim 5, is characterized in that, the number of described cylinder is 4,The front end face from cylinder body on described cylinder pad direction setting to back end each, the Area Ratio in water hole is(0.75-0.95)：(0.8-0.98)：(0.85-1)：1。
7. automobile engine according to claim 6, is characterized in that, on described cylinder pad from cylinder bodyThe Area Ratio in each upper water hole of direction setting to back end of front end face be 0.905:0.957:0.998:1.
8. automobile engine according to claim 4, is characterized in that, described delivery port is arranged on instituteState the centre position of cylinder body air inlet face.
9. automobile engine according to claim 1, is characterized in that, described inner lead comprises respectivelyBe arranged on the exhaust side water channel and the air inlet side water channel that is arranged on cylinder body air inlet side of cylinder body exhaust side; Described upper waterMouth is arranged on described exhaust side water channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984432.0U CN205243618U (en) | 2015-11-30 | 2015-11-30 | Automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984432.0U CN205243618U (en) | 2015-11-30 | 2015-11-30 | Automobile engine |
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| Publication Number | Publication Date |
|---|---|
| CN205243618U true CN205243618U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520984432.0U Active CN205243618U (en) | 2015-11-30 | 2015-11-30 | Automobile engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852683A (en) * | 2019-04-30 | 2020-10-30 | 长城汽车股份有限公司 | Cylinder head cooling structure, engine cooling structure and engine |
| CN112576401A (en) * | 2019-09-30 | 2021-03-30 | 广州汽车集团股份有限公司 | Double-deck cylinder head water jacket, cylinder and vehicle |
-
2015
- 2015-11-30 CN CN201520984432.0U patent/CN205243618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852683A (en) * | 2019-04-30 | 2020-10-30 | 长城汽车股份有限公司 | Cylinder head cooling structure, engine cooling structure and engine |
| CN112576401A (en) * | 2019-09-30 | 2021-03-30 | 广州汽车集团股份有限公司 | Double-deck cylinder head water jacket, cylinder and vehicle |
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