CN208578633U - A kind of diesel engine cooling system - Google Patents
A kind of diesel engine cooling system Download PDFInfo
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- CN208578633U CN208578633U CN201821024537.1U CN201821024537U CN208578633U CN 208578633 U CN208578633 U CN 208578633U CN 201821024537 U CN201821024537 U CN 201821024537U CN 208578633 U CN208578633 U CN 208578633U
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- expansion tank
- water
- pipe
- outlet pipe
- inlet pipe
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Abstract
The utility model discloses a kind of diesel engine cooling systems, including expansion tank and water pump, expansion tank is equipped with expansion tank outlet pipe and expansion tank water inlet pipe, water pump is connected on the expansion tank outlet pipe, engine is connected on the pumping line of the water pump, the engine is equipped with high-temperature water outlet pipe, and the end of the high-temperature water outlet pipe is connected to expansion tank water inlet pipe, the high-temperature water outlet pipe is connected to by return pipe with water pump, and the expansion tank water inlet pipe is equipped with throttle valve.The utility model is connected to the expansion tank outlet pipe of expansion tank and expansion tank water inlet pipe diameter increases, accordingly even when fouling is also impossible to blocking pipeline on extra heavy pipe wall, throttle valve aperture is smaller, but the water body for flowing through throttle valve is in boost phase, it is thus avoided that the calcium and magnesium compound to form scale is attached on tube wall, occurs the probability blocked also very little at throttle bore.Can be to avoid water-pipe blockage in the system, and structure is simple.
Description
Technical field
The utility model relates to a kind of diesel engine cooling systems.
Background technique
Expansion tank is the important component of engine-cooling system, its effect is the breathing of water in receiving and compensation system
Amount makes the leeway for having expansion after the water in system is heated, generally to connect expansion tank water inlet pipe in the highest point of system, discharge system
Air in system；Expansion tank outlet pipe connects on the return pipe near water circulating pump water sucking mouth, in replenishment system because evaporation and
Leakage and lose water and guarantee that water pump has enough suction pressures.
The flowing of engine-cooling system recirculated water is that the pressure of water pump is leaned on to realize.One lateral pressure of pump sump
It is low, be also easy to produce steam bubble, make the significant decline of the water yield of water pump, and cause water pump vane cavitation pitting, its surface generate point or
Pit shortens the service life of impeller.After installing expansion tank additional, due to there is supplement between expansion tank and pump intake
Water pipe reduces water pump and generates steam bubble.Steam bubble in cylinder cap and water jacket enters expansion tank by engine water outlet general pipeline, thus
It is completely separated air water.Since expansion tank temperature is lower, the gas of entrance is condensed, and a part becomes liquid, again into
Enter water pump.
Large-scale circulating water of engine amount peculiar to vessel is big, and often because of the restriction of human factor, environmental condition, water body softening is not thorough
Cause expansion tank Incrustation of pipe to block, and then cause pressure transient in cooling system, bubbing can not be discharged, before water pump
Increased air bubble etc. forms the undesirable element of cavitation, cavitation pitting.Thickening expansion tank pipeline in this programme reduces Incrustation of pipe risk,
With the throttle valve control branch pressure drag, the share that branch distribution cooling water accounts for global cycle water is adjusted.
Prior art will mostly flow through the pipeline minor diameter pipe of expansion tank, and the pressure drag of pipeline is larger, reduce distribution
The share of global cycle water.The lateral minor diameter pipe of expansion tank will be flowed through, though can reduce in short-term recirculated water interfere into
The problem of machine temperature.But just in case the precipitation of calcium and magnesium compound is attached to blocking pipeline on tube wall in water body, and then cause cooling system
Interior pressure transient, bubbing can not be discharged, and increased air bubble etc. forms the undesirable element of cavitation before water pump, endanger engine just
Often operation.
Utility model content
The utility model provides a kind of diesel engine cooling system regarding to the issue above, which can be to avoid
The water-pipe blockage of expansion tank, and structure is simple.
In order to solve the above-mentioned technical problem, the utility model provides a kind of diesel engine cooling system such as flowering structure, packet
Expansion tank and water pump are included, expansion tank is equipped with expansion tank outlet pipe and expansion tank water inlet pipe, is structurally characterized in that: institute
It states and is connected to water pump on expansion tank outlet pipe, be connected with engine on the pumping line of the water pump, on the engine
Equipped with high-temperature water outlet pipe, the end of the high-temperature water outlet pipe is connected to expansion tank water inlet pipe, and the high-temperature water outlet pipe passes through back
Flow tube is connected to water pump, and the expansion tank water inlet pipe is equipped with throttle valve.
The caliber of the expansion tank outlet pipe and expansion tank water inlet pipe is φ 20mm- φ 30mm.
The caliber of the expansion tank outlet pipe and expansion tank water inlet pipe is φ 25mm.
The caliber of the high-temperature water outlet pipe is φ 100mm.
The expansion tank water inlet pipe includes top tube and down tube, and the lower end of the upper tube is equipped with upper flange, under described
The upper end of pipe is equipped with lower flange, and the throttle valve is installed between upper flange and lower flange and protrudes into down tube, it is described on
It is bolted between flange and lower flange.
Have the advantage that compared with prior art using the above structure flow through expansion tank expansion tank outlet pipe and
Expansion tank water inlet pipe diameter increases, accordingly even when fouling is also impossible to blocking pipeline on extra heavy pipe wall, throttle valve aperture is smaller,
But the water body for flowing through throttle valve is in boost phase, is thus avoided that the calcium and magnesium compound to form scale is attached on tube wall,
Occurs the probability blocked also very little at throttle bore.
In conclusion can be to avoid water-pipe blockage in the system, and structure is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the connection structure diagram of expansion tank water inlet pipe and throttle valve；
Fig. 3 is the structural schematic diagram of throttle valve.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing:
As illustrated in the accompanying drawings from 1 to 3, diesel engine cooling system provided by the utility model, including expansion tank 1 and water pump 2,
Expansion tank 1 is equipped with expansion tank outlet pipe 11 and expansion tank water inlet pipe 12, is connected to water on expansion tank outlet pipe 11
2 are pumped, engine 4 is connected on the pumping line of water pump 2, engine 4 is equipped with high-temperature water outlet pipe 41, high-temperature water outlet pipe 41
End is connected to expansion tank water inlet pipe 12, and high-temperature water outlet pipe 41 is connected to by return pipe 8 with water pump 2.It is cold in expansion tank 1
But water enters water pump 2 by expansion tank outlet pipe 11, and subsequently into being cooled down in engine 4, water after cooling passes through height
Warm 41 a part of outlet pipe enters expansion tank 1 by expansion tank water inlet pipe 12, and another part enters water pump by return pipe 8
2 flow back to engine 4 again.Two circulation waterways in parallel can thus be formed.
As Figure 1-Figure 2, the caliber of high-temperature water outlet pipe 41 is φ 100mm.Expansion tank outlet pipe 11 and expansion tank
The caliber of water inlet pipe 12 is φ 20mm- φ 30mm, expansion tank outlet pipe 11 and expansion tank water inlet pipe 12 in the present embodiment
Caliber optimum size is φ 25mm.After the caliber of expansion tank outlet pipe 11 and expansion tank water inlet pipe 12 increases in the circulatory system
The calcium and magnesium compound that water body softening is not thorough precipitation can not block pipeline.
As depicted in figs. 1 and 2, expansion tank water inlet pipe 12 is equipped with throttle valve 3.Expansion tank water inlet pipe in the present embodiment
12 include upper tube 121 and down tube 122, and the lower end of upper tube 121 is equipped with upper flange 123, and the upper end of down tube 122 is equipped with down
Flange 124, throttle valve 3 are installed between upper flange 123 and lower flange 124 and protrude into down tube 122, upper flange 123 and laxative remedy
It is bolted between orchid 124, so that upper down tube be linked together, can thus be installed by flange with regard to throttle valve 3
On expansion tank water inlet pipe 12.Under conditions of flow is certain, increase 12 pipeline pressure drag of expansion tank water inlet pipe after diameter dimension
Low, the share that expansion tank water inlet pipe 12 and expansion tank outlet pipe 11 distribute entire quantity of circulating water increases, if directly in water
Converge before pump 4 with cooled water, recirculated water is increased into machine temperature, is unfavorable for recirculated water and is controlled into machine temperature.It is expanding
Adjustable throttle diameter and body length are installed after throttle valve 3 to increase expansion tank water inlet pipe 12 on tank inlet pipe 12
Pressure drag controls the share of 12 distribution circulation total flow of expansion tank water inlet pipe, reduces to recirculated water into machine temperature interference, protects bavin
Oil machine.
The above is the specific constructive form of the utility model, and the present utility model is not limited to the above embodiments,
For those skilled in the art, equivalent variations and part replacement based on specific structure on the utility model are all practical new at this
In the protection scope of type.
Claims (5)
1. a kind of diesel engine cooling system, including expansion tank (1) and water pump (2), expansion tank (1) go out equipped with expansion tank
Water pipe (11) and expansion tank water inlet pipe (12), it is characterized in that: water pump (2) are connected on the expansion tank outlet pipe (11),
It is connected with engine (4) on the pumping line of the water pump (2), the engine (4) is equipped with high-temperature water outlet pipe (41), institute
The end for stating high-temperature water outlet pipe (41) is connected to expansion tank water inlet pipe (12), and the high-temperature water outlet pipe (41) passes through return pipe
(8) it is connected to water pump (2), the expansion tank water inlet pipe (12) is equipped with throttle valve (3).
2. diesel engine cooling system as described in claim 1, it is characterized in that: the expansion tank outlet pipe (11) and swelling water
The caliber of case water inlet pipe (12) is φ 20mm- φ 30mm.
3. diesel engine cooling system as claimed in claim 2, it is characterized in that: the expansion tank outlet pipe (11) and swelling water
The caliber of case water inlet pipe (12) is φ 25mm.
4. diesel engine cooling system as claimed in claim 3, it is characterized in that: the caliber of the high-temperature water outlet pipe (41) is φ
100mm。
5. diesel engine cooling system as described in claim 1, it is characterized in that: the expansion tank water inlet pipe (12) includes upper tube
(121) it is equipped with upper flange (123) with down tube (122), the lower end of the upper tube (121), the upper end of the down tube (122)
It is equipped with lower flange (124), the throttle valve (3) is installed between upper flange (123) and lower flange (124) and protrudes into down tube
(122) it in, is bolted between the upper flange (123) and lower flange (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821024537.1U CN208578633U (en) | 2018-06-30 | 2018-06-30 | A kind of diesel engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821024537.1U CN208578633U (en) | 2018-06-30 | 2018-06-30 | A kind of diesel engine cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578633U true CN208578633U (en) | 2019-03-05 |
Family
ID=65508207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821024537.1U Active CN208578633U (en) | 2018-06-30 | 2018-06-30 | A kind of diesel engine cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458851A (en) * | 2022-01-13 | 2022-05-10 | 宁波福士汽车部件有限公司 | Structure for controlling flow of cooling water pipe of engine |
-
2018
- 2018-06-30 CN CN201821024537.1U patent/CN208578633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458851A (en) * | 2022-01-13 | 2022-05-10 | 宁波福士汽车部件有限公司 | Structure for controlling flow of cooling water pipe of engine |
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