CN207178048U - A kind of cylinder cover for diesel engine - Google Patents
A kind of cylinder cover for diesel engine Download PDFInfo
- Publication number
- CN207178048U CN207178048U CN201721131841.1U CN201721131841U CN207178048U CN 207178048 U CN207178048 U CN 207178048U CN 201721131841 U CN201721131841 U CN 201721131841U CN 207178048 U CN207178048 U CN 207178048U
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- air intake
- intake duct
- cylinder cover
- water
- circulating pipe
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Abstract
The utility model discloses a kind of cylinder cover for diesel engine, including：Cylinder head body, thermostat base, thermostat housing, small circulating pipe, oil injector seat, exhaust duct, air intake duct, lower floor's water cavity water inlet, water cavity include upper and lower two layers with water hole, the cylinder head body is connected, and the air intake duct includes short air intake duct and long air intake duct；The long air intake duct of the cylinder cover base and side wall of the exhaust duct close to oil injector seat side are arranged to concave surface；The small circulating pipe includes small circulating pipe water inlet pipe and partial circulating inner flow tube, and the small circulating pipe water inlet pipe is located above partial circulating inner flow tube；The oil injector seat is connected in cylinder cover base with short air intake duct.The utility model is effectively improved cylinder head bulk strength, ensure the cooling-water duct between oil injector seat, long air intake duct and exhaust duct, so that cooling water can well be cooled down to cylinder cap key area in the range of cylinder operation region, small circulating pipe resistance is smaller, flow can be increased suitably, reach more preferable cooling effect.
Description
Technical field
Engine art is the utility model is related to, more particularly to a kind of cylinder cover for diesel engine.
Background technology
In the prior art, cylinder cover for diesel engine lower exhaust road and air intake duct wall are all arranged in oil injector seat to be cylindric
Surrounding, it is out-of-date that water flows through, due to exhaust duct and air intake duct and oil injector seat by closely, flow of cooling water excessively slowly with roundabout,
Cause cooling water hot-spot and gasify seriously, cause the cooling performance of cylinder head bad and cause the failure problems such as cracking.It is existing
Have the partial circulating inner flow tube internal diameter of technology consistent, when increased flow capacity caused resistance to water-flow can also increase relatively.
The disclosure of background above technology contents is only used for auxiliary and understands design of the present utility model and technical scheme, and it is not
The prior art of present patent application is necessarily belonged to, shows the applying date of the above in present patent application in no tangible proof
In the case of disclosed, above-mentioned background technology should not be taken to evaluate the novelty and creativeness of the application.
Utility model content
The utility model purpose is to propose that a kind of cooling effect is good, close structure, the rational diesel oil of Integration Design
Machine cylinder head, to solve the technical problem that cooling performance existing for above-mentioned prior art is bad, resistance to water-flow is big.
Therefore, the utility model proposes a kind of cylinder cover for diesel engine, including：Cylinder head body, thermostat base, thermostat
Lid, small circulating pipe, oil injector seat, exhaust duct, air intake duct, water cavity water inlet, water cavity and connect water hole, the cylinder head body bag
Include two layers up and down, the air intake duct includes short air intake duct and long air intake duct；It is characterized in that：The long air intake duct of cylinder cover base
With exhaust duct concave surface is arranged to close to oil injector seat side；The small circulating pipe includes flowing in small circulating pipe water inlet pipe and partial circulating
Pipe, the small circulating pipe water inlet pipe are located above partial circulating inner flow tube；The oil injector seat is in cylinder cover base and short air intake duct
Connection.
Preferably, the concave surface is arc surface.
Preferably, the small circulating pipe water inlet pipe vertical connection partial circulating inner flow tube.
Preferably, the partial circulating inner flow tube is L-shaped, and caliber is more than partial circulating inner flow tube inner end inner tube in its port of export
Footpath.
Preferably, the thermostat base is located above small circulating pipe, itself and cylinder head body top surface keep level.
The beneficial effects of the utility model include：(1) oil injector seat is connected in cylinder cover base with short air intake duct, is effectively carried
High cylinder head bulk strength；(2) side wall of the long air intake duct of cylinder cover base and exhaust duct close to oil injector seat side is arranged to round
Cambered surface, ensure that the cooling-water duct between oil injector seat, long air intake duct and exhaust duct is smooth, enable cooling water to cylinder operation area
Cylinder cap key area is well cooled down in the range of domain；(3) small circulating pipe includes small circulating pipe water inlet pipe and partial circulating inner flow tube,
The small circulating pipe water inlet pipe vertical connection partial circulating inner flow tube, add the closeness of small circulating pipe；Flowed in the partial circulating
Manage it is L-shaped, in its port of export caliber be more than partial circulating inner flow tube inner end in caliber；Small circulating pipe flow of cooling water resistance is smaller,
Flow can be increased suitably, reach more preferable cooling effect.
Brief description of the drawings
Fig. 1 is partial schematic diagram of the present utility model；
Fig. 2 is partial, longitudinal cross-sectional of the present utility model；
Fig. 3 is cylinder cover base partial cross sectional view of the present utility model；
Fig. 4 is cylinder cover top partial cross sectional view of the present utility model.
Marked in figure：1- cylinder head bodies, 2- thermostat housings, 3- thermostats, 4- thermostat bases, 5- small circulating pipes, 51- are small
Circulation water inlet, 52- small circulating pipe inner flow passages, 6- upper stratas water cavity, 7- lower aqueous layers, 8- fuel injector mounting seats, 9- lower floors water cavity
Water inlet, 10- exhaust ducts, 101- exhaust duct exhaust ports, 11- air intake ducts, the short air intake ducts of 111-, the long air intake ducts of 112-, 12- are recessed
Face, 13- connections water hole.
Embodiment
With reference to embodiment and compare accompanying drawing the utility model is described in further detail.It should be emphasized that
It is, what the description below was merely exemplary, rather than in order to limit the scope of the utility model and its application.
A kind of cylinder cover for diesel engine, including cylinder head body 1, thermostat base 4, thermostat housing 2, small circulating pipe 5, fuel injector
Seat 8, exhaust duct 10, air intake duct 11, lower floor's water cavity water inlet 9, water cavity 6,7 and connect water hole 13.Cylinder head body 1 is included up and down
Two layers, air intake duct 11 includes short air intake duct 111 and long air intake duct 112.The long air intake duct 112 of cylinder cover base and exhaust duct 10 are close
The side wall of the side of oil injector seat 8 forms concave surface 12, concave surface 12 is circular arc wall toward recessed in air flue；The oil injector seat 8 is vertical
In cylinder head bottom surface, its axis overlaps with cylinder-bore axis.The integrally casting of thermostat base 4 in the side of cylinder head exhaust duct 10,
Positioned at the front end of cylinder head body 1, communicated with upper strata water cavity 6；Thermostat 3 is arranged on the inner chamber of thermostat base 4, and thermostat housing 2 is pacified
Above thermostat base 4, thermostat base 4 is located at the top of small circulating pipe 5, itself and the either flush of cylinder head body 1.Small circulating pipe
5 include small circulating pipe water inlet pipe 51 and partial circulating inner flow tube 52, and small circulating pipe water inlet pipe 51 is located at the top of partial circulating inner flow tube 52.
The vertical connection partial circulating inner flow tube 52 of small circulating pipe water inlet pipe 51.Partial circulating inner flow tube 52 is L-shaped, and caliber is more than in its port of export
Caliber in the inner end of partial circulating inner flow tube 52.Cylinder cover base oil injector seat 8 is connected with short air intake duct 111.
During utility model works, cooling water water from cylinder block is entered by the bottom surface lower floor water cavity of cylinder head body 1
Water hole 9 enters lower floor's water cavity 7, and cooling water flows to the long concave surface of air intake duct 112 in cylinder cap lower floor water cavity 7 from the concave surface 12 of exhaust duct 10
12 and fuel injector mounting seat 8, reach the effect of quick cooling cylinder head fire power face, air intake duct 11 and exhaust duct 10.Then cool down
Water respectively enters cylinder cover top water cavity 6 by connecting water hole 13, and cooling water converges with rear to cylinder head sheet in upper strata water cavity 6
The front end of body 1 is flowed, into the inner chamber of thermostat base 4；When engine water temperature is less than 3 design temperature of thermostat, cooling water passes through gas
Small circulating pipe water inlet 51 on cylinder cap enters small circulating pipe inner flow passage 52, returns to pump intake by small circulating pipe 5, completes
Engine cool partial circulating；When engine water temperature is promoted to design temperature, thermostat 3 is opened, by small circulating pipe water inlet 51
Close, cooling water is flowed out from the thermostat housing 2 above thermostat 3, and cylinder head body 1 is returned to by respective line, complete
Into the cooling systemic circulation of engine.
The utility model uses Integration Design, is connected oil injector seat 8 with short air intake duct 111 in cylinder cover base, can
To effectively improve cylinder head bulk strength.Wall in cylinder cover base by long air intake duct 112 and exhaust duct 10 close to oil injector seat 8
Face is designed as arc-shaped concave 12, equivalent to the passage expanded when cooling water passes through the region, ensures oil injector seat 8 and progress
Flow of cooling water between air flue 112 and exhaust duct 10 is smooth so that cooling water can be to cylinder cap weight in the range of cylinder operation region
Point region is well cooled down.The internal diameter of the port of export of small circulating pipe inner flow tube 52 is more than the interior of the inner end of small circulating pipe inner flow tube 52
Footpath, the flow resistance of the cooling water of small circulating pipe 5 is relatively reduced, flow can be increased suitably, reach more preferable cooling effect.
It is counted as example embodiment of the present utility model although having been described above and describing, those skilled in the art will be bright
In vain, it can be variously modified and replaced, without departing from spirit of the present utility model.Repaiied furthermore it is possible to make many
Change so that particular case is fitted into religious doctrine of the present utility model, without departing from the utility model central concept described here.
So the utility model is not only restricted to specific embodiment disclosed here, but the utility model may also include belonging to this practicality
All embodiments and its equivalent of new scope.
Claims (5)
1. a kind of cylinder cover for diesel engine, including：Cylinder head body, thermostat base, thermostat housing, small circulating pipe, oil injector seat, row
Air flue, air intake duct, lower floor's water cavity water inlet, water cavity include upper and lower two layers with water hole, the cylinder head body is connected, the air inlet
Road includes short air intake duct and long air intake duct；It is characterized in that：The long air intake duct of the cylinder cover base and exhaust duct are close to fuel injector
The side wall of seat side is arranged to concave surface；The small circulating pipe includes small circulating pipe water inlet pipe and partial circulating inner flow tube, described small to follow
Endless tube water inlet pipe is located above partial circulating inner flow tube；The oil injector seat is connected in cylinder cover base with short air intake duct.
2. cylinder cover for diesel engine as claimed in claim 1, it is characterised in that：The concave surface is arc surface.
3. cylinder cover for diesel engine as claimed in claim 1, it is characterised in that：The small circulating pipe water inlet pipe vertical connection is small to be followed
Ring inner flow tube.
4. cylinder cover for diesel engine as claimed in claim 1, it is characterised in that：The partial circulating inner flow tube is L-shaped, its port of export
Interior caliber is more than caliber in partial circulating inner flow tube inner end.
5. cylinder cover for diesel engine as claimed in claim 1, it is characterised in that：The thermostat base is located above small circulating pipe,
Itself and cylinder head body top surface keep level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131841.1U CN207178048U (en) | 2017-09-05 | 2017-09-05 | A kind of cylinder cover for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131841.1U CN207178048U (en) | 2017-09-05 | 2017-09-05 | A kind of cylinder cover for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178048U true CN207178048U (en) | 2018-04-03 |
Family
ID=61742600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721131841.1U Active CN207178048U (en) | 2017-09-05 | 2017-09-05 | A kind of cylinder cover for diesel engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN207178048U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519296A (en) * | 2018-10-15 | 2019-03-26 | 第拖拉机股份有限公司 | A kind of engine cylinder cap of integrated thermostat mounting seat |
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
| CN110107423A (en) * | 2019-06-20 | 2019-08-09 | 淄柴动力有限公司 | High-performance diesel engine cylinder head for ship |
| CN110242435A (en) * | 2019-07-02 | 2019-09-17 | 重庆潍柴发动机有限公司 | A kind of cylinder cover for diesel engine |
| WO2021115448A1 (en) * | 2019-12-13 | 2021-06-17 | 赛格威科技有限公司 | Cylinder head for engine and engine having same |
-
2017
- 2017-09-05 CN CN201721131841.1U patent/CN207178048U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519296A (en) * | 2018-10-15 | 2019-03-26 | 第拖拉机股份有限公司 | A kind of engine cylinder cap of integrated thermostat mounting seat |
| CN109519296B (en) * | 2018-10-15 | 2024-05-28 | 第一拖拉机股份有限公司 | Engine cylinder cover integrated with thermostat mounting base |
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
| WO2020192043A1 (en) * | 2019-03-28 | 2020-10-01 | 广西玉柴机器股份有限公司 | Three-way cylinder head cooling structure having partially tapered exhaust channel |
| CN110107423A (en) * | 2019-06-20 | 2019-08-09 | 淄柴动力有限公司 | High-performance diesel engine cylinder head for ship |
| CN110242435A (en) * | 2019-07-02 | 2019-09-17 | 重庆潍柴发动机有限公司 | A kind of cylinder cover for diesel engine |
| WO2021115448A1 (en) * | 2019-12-13 | 2021-06-17 | 赛格威科技有限公司 | Cylinder head for engine and engine having same |
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