CN210660332U

CN210660332U - Layered cooling cylinder cover

Info

Publication number: CN210660332U
Application number: CN201921014943.4U
Authority: CN
Inventors: 黄豪; 沈捷; 班智博; 胡国强
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-06-02
Anticipated expiration: 2029-07-02

Abstract

The utility model provides a layering cooling cylinder head, include: the water inlet is arranged in the cylinder cover and comprises an upper water channel, a first water jacket, a second water jacket, a cylinder barrel, a third water jacket, a water outlet main pipe, a nose bridge area, a first water inlet hole, a second water inlet hole and a third water inlet hole; the first water jacket and the second water jacket are separated by a partition plate, the first water inlet hole is formed in the top end of the upper water channel, the first water jacket is communicated with the upper water channel through the first water inlet hole, and the second water inlet hole is formed below the first water inlet hole; the utility model provides a layering cooling cylinder head, the independent cooling of layering can satisfy the cooling of each high temperature district of engine, and the independent cooling effect of layering can improve the cooling capacity of whole engine greatly.

Description

Layered cooling cylinder cover

Technical Field

The utility model belongs to the technical field of the cylinder cap cooling, concretely relates to layered cooling cylinder head.

Background

The cooling water flow scheme of the engine in the prior art is that water is firstly sent to the upper part of a cylinder barrel and then flows out through a cylinder cover, and forced water flow does not exist at the lower part of the cylinder barrel. The cooling water with lower temperature is sent to the water diversion sleeve on one side of the cylinder barrel from the front end of the cylinder body, then the main water flows through the gap between the cylinder barrels to the other side of the cylinder barrel, upwards flows into the cylinder cover through the water passing holes between the cylinder body and the cylinder cover, then flows through the high-temperature area near the center of each cylinder, and finally is concentrated to flow out through the water outlet pipe of the cylinder cover.

For example, chinese patent application publication No. CN105697180A discloses a cylinder head with layered cooling, comprising: a cylinder head water jacket; the inlet end of the water distribution channel is used for introducing cooling liquid, and the outlet end of the water distribution channel is communicated with the cylinder head water jacket through a cylinder head main water feeding hole; the inlet end of the cylinder block water jacket is communicated with the outlet end of the water distribution channel through a cylinder block water jacket water inlet hole; the outlet end of the cylinder block water jacket is communicated with the cylinder head water jacket through a cylinder head auxiliary water feeding hole.

It can be seen that the cylinder head with layered cooling in the prior art mainly adopts two cooling water channels to cool the nose bridge area and the cylinder sleeve, but the cooling water has higher temperature from the engine body to the cylinder head and has poorer cooling effect on high-temperature areas such as the nose bridge area.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a layered cooling cylinder head aims at solving the relatively poor problem of cylinder head high temperature region cooling effect among the prior art.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a layering cooling cylinder head, include: the water inlet is arranged in the cylinder cover and comprises an upper water channel, a first water jacket, a second water jacket, a cylinder barrel, a third water jacket, a water outlet main pipe, a nose bridge area, a first water inlet hole, a second water inlet hole and a third water inlet hole; the first water jacket and the second water jacket are separated by a partition plate, the first water inlet hole is arranged at the top end of the upper water channel, the first water jacket is communicated with the upper water channel through the first water inlet hole, the second water inlet hole is arranged below the first water inlet hole, the second water jacket is communicated with the upper water channel through the second water inlet hole, and the nose bridge area is arranged in the second water jacket; the third water inlet hole is arranged at the bottom end of the upper water channel, the third water jacket is communicated with the upper water channel through the third water inlet hole, and the third water jacket is further communicated with the water outlet main pipe.

Preferably, the first water inlet hole, the second water inlet hole and the third water inlet hole are formed by casting or machining.

Preferably, the cylinder head further comprises a water jacket process hole arranged on the surface of the cylinder head.

Preferably, the cylinder barrel further comprises a clearance hole arranged at the joint of the cylinder barrel.

The utility model has the advantages that:

1. the utility model provides a layering cooling cylinder head, the independent cooling of layering can satisfy the cooling of each high temperature zone of engine.

2. The utility model provides a layering cooling cylinder head, the independent cooling of layering can satisfy under the same structure can adjust cooling capacity according to different powers.

3. The utility model provides a layering cooling cylinder head, the independent cooling effect of layering can improve the cooling capacity of whole engine greatly.

4. The utility model provides a layering cooling cylinder head, the independent cooling water flow field of layering is simple reliable than traditional water flow field, easily adjusts.

5. The utility model provides a layering cooling cylinder head, the structure can be realized on current ripe technology, the good reliability.

Drawings

Fig. 1 is a structural sectional view of a layered cooling cylinder head according to the present invention;

3 fig. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 the 3 plane 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3

In the drawing, 100 is a cylinder head, 101 is a first water jacket, 102 is a second water jacket, 103 is a water outlet header, 104 is a first water inlet hole, 105 is a second water inlet hole, 106 is a third water inlet hole, 107 is a water supply channel, 108 is a cylinder, 109 is a nose bridge region, 110 is a water jacket process hole, 111 is a third water jacket, and 112 is a clearance hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides a layering cooling cylinder head, as shown in figure 1, figure 2, include:

an upper water channel 107, a first water jacket 101, a second water jacket 102, a cylinder 108, a third water jacket 111, a water outlet manifold 103, a nose bridge region 109, a first water inlet hole 104, a second water inlet hole 105, and a third water inlet hole 106, which are arranged in the cylinder head 100; the upper water channel 107 is used for connecting a main water channel of the engine body so as to obtain the inlet of cooling water;

the first water jacket 101 and the second water jacket 102 are separated by a partition plate, the first water inlet hole 104 is disposed at the top end of the upper water passage 107, the first water jacket 101 communicates with the upper water passage 107 through the first water inlet hole 104, and the cooling water of the upper water passage 107 can directly flow into the first water jacket 101 through the first water inlet hole 104 for cooling the upper region of the cylinder head 100 (refer to the arrow direction in fig. 1); the second water inlet hole 105 is arranged below the first water inlet hole 104, and the second water jacket 102 is communicated with the upper water channel 107 through the second water inlet hole 105; the third water inlet hole 106 is disposed at the bottom end of the upper water channel 107, and the cooling water of the upper water channel 107 can also directly flow into the second water jacket 102 through the second water inlet hole 105 for cooling the bridge area 109 (refer to the arrow direction in fig. 1);

the third water jacket 111 is communicated with the upper water channel 107 through a third water inlet hole 106, the cooling water in the upper water channel 107 can enter the third water jacket 111 through the third water inlet hole 106 to cool the cylinder 108, the third water jacket 111 is also communicated with the water outlet header pipe 103, and the water outlet header pipe 103 is used for collecting the cooled cooling water.

In one embodiment, the first water inlet hole 104, the second water inlet hole 105 and the third water inlet hole 106 are formed by casting or machining, and the sizes of the first water inlet hole 104, the second water inlet hole 105 and the third water inlet hole 106 can be adjusted by machining, so as to achieve the effect of controlling the water flow and the flow rate; the water flow into the first water jacket 101 is adjusted by increasing or decreasing the size of the first water inlet holes 104, the water flow into the second water jacket 102 is adjusted by increasing or decreasing the size of the second water inlet holes 105, and the water flow into the third water jacket 111 is adjusted by increasing or decreasing the size of the third water inlet holes 106.

In one embodiment, a water jacket tooling hole 110 is further included in the surface of the cylinder head 100 for ease of assembly.

In some embodiments, a clearance hole 112 is further included at the junction of the cylinder tube 108, and the clearance hole 112 can divert the cooling water of the third water jacket 111 to sufficiently cool the side region of the cylinder tube 108.

Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.

Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.

Claims

1. A layered cooling cylinder head, comprising:

the water inlet is arranged in the cylinder cover and comprises an upper water channel, a first water jacket, a second water jacket, a cylinder barrel, a third water jacket, a water outlet main pipe, a nose bridge area, a first water inlet hole, a second water inlet hole and a third water inlet hole;

the first water jacket and the second water jacket are separated by a partition plate, the first water inlet hole is arranged at the top end of the upper water channel, the first water jacket is communicated with the upper water channel through the first water inlet hole, the second water inlet hole is arranged below the first water inlet hole, the second water jacket is communicated with the upper water channel through the second water inlet hole, and the nose bridge area is arranged in the second water jacket;

the third water inlet hole is arranged at the bottom end of the upper water channel, the third water jacket is communicated with the upper water channel through the third water inlet hole, and the third water jacket is further communicated with the water outlet main pipe.

2. The layered-cooling cylinder head of claim 1, wherein the first inlet opening, the second inlet opening, and the third inlet opening are each cast or machined.

3. The layered-cooled cylinder head according to claim 1, further comprising a water jacket tooling hole disposed in a surface of the cylinder head.

4. The layered-cooled cylinder head according to claim 1 or 2, further comprising a clearance hole provided at a joint of the cylinder bores.