CN109519296A - A kind of engine cylinder cap of integrated thermostat mounting seat - Google Patents
A kind of engine cylinder cap of integrated thermostat mounting seat Download PDFInfo
- Publication number
- CN109519296A CN109519296A CN201811197336.6A CN201811197336A CN109519296A CN 109519296 A CN109519296 A CN 109519296A CN 201811197336 A CN201811197336 A CN 201811197336A CN 109519296 A CN109519296 A CN 109519296A
- Authority
- CN
- China
- Prior art keywords
- mounting seat
- water jacket
- thermostat
- cylinder
- cylinder cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 239000002826 coolant Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 11
- 239000000446 fuel Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 230000004087 circulation Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001839 systemic circulation Effects 0.000 description 3
- 210000000476 body water Anatomy 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A kind of engine cylinder cap of integrated thermostat mounting seat, comprising: air inlet side, exhaust side, top surface, thermostat mounting seat, whole upper water sleeve, independent lower water jacket, exhalant canal, thermostat partial circulating backwater hole, upper water hole, upper and lower water jacket partition blowhole, oil sprayer bushing；Cylinder cover bottom surface is cast with water hole, and upper water hole is communicated with each cylinder independence lower water jacket, and independent lower water jacket is communicated with the cavity around oil sprayer bushing with whole upper water sleeve by upper and lower water jacket partition blowhole；It is cast with thermostat pedestal close to exhaust side on top surface of cylinder cover, thermostat pedestal is communicated with cylinder cap entirety upper water sleeve exhalant canal.Thermostat mounting seat is integrated in cylinder head to make compact integral structure, easy for installation, reduces risk of leakage, improves the reliability and suitability of diesel engine.Using double-layer water jacket design, independent lower water jacket arrangement, so that each high heat load area at cylinder head plate is obtained uniform, efficient cooling, reduce cylinder head thermic load, while improving the rigidity of cylinder head.
Description
Technical field
The invention belongs to field of internal combustion engine, are related to a kind of engine cylinder cap of integrated thermostat mounting seat.
Background technique
It is well known that non-rice habitats diesel engine generallys use coolant liquid forced circulation system, guarantee engine more stable
At a temperature of work.The coolant liquid of engine is pumped into cylinder body water jacket after water pump pressurizes, and cooling each position of cylinder body is flowed then up
Enter cylinder cover water jacket, after the high temperature positions such as cooling bottom plate, fuel injector, engine is gone out by cylinder cap overhead stream, is pressurizeed again into water pump
To start next circulation, or after radiator is cooling enter back into water pump.Currently, cylinder head cooling jacket is mostly single layer
It is cooling to be unfavorable for the high hot-zone of cylinder head for structure, and cylinder head rigidity is lower, is unfavorable for the power ascension of engine.
According to the coolant temperature of outflow cylinder cap, coolant liquid forced circulation is divided into systemic circulation and partial circulating, and partial circulating refers to
When the water temperature of engine is low, thermostat main valve is closed, and auxiliary-valve is opened, and coolant liquid is directly entered water pump, successively flows after pressurization
Through cylinder body water jacket, cylinder cover water jacket, the cooling cycle of engine is completed；Systemic circulation is when the coolant temperature of outflow engine is more than
When the limit value that thermostat is opened, thermostat main valve is opened, and auxiliary-valve is closed, and the coolant liquid flowed out from cylinder cover water jacket is through thermostat
Into after radiator cooling, water pump is returned.
Switching mechanism of the assembly of thermostat as engine-cooling system large and small cycles is usually in motor head at present
An independent shell is arranged on or near the cylinder cap water outlet of face, as the mounting framework of thermostat, and install accordingly into and out of
Water lines complete the circulation of whole system；Due to needing individual shell, pipeline, increase manufacturing cost；External pipeline connects
It connects and increases installation workload, and there are risk of leakage；Installation space needed for this structure is larger simultaneously, to before engine complete machine
End attachment arrangement brings difficulty.
Summary of the invention
The purpose of the present invention is to provide a kind of characteristics of compact layout, structures simply, the Double-layer water with thermostat mounting seat
Cylinder head is covered, with overcome the deficiencies in the prior art.
The technical scheme is that a kind of engine cylinder cap of integrated thermostat mounting seat, comprising: air inlet side
1, be vented side 2, top surface 3, thermostat mounting seat 4, bolt hole 5, whole upper water sleeve 6, independent lower water jacket 7, exhalant canal 8,
Thermostat partial circulating backwater hole 9, upper water hole 10, upper and lower water jacket partition blowhole 11, oil sprayer bushing 12；It is characterized by: cylinder cap
Bottom surface is cast with water hole 10, and upper water hole 10 is communicated with the independent lower water jacket 7 of each cylinder, and independent lower water jacket 7 passes through upper and lower water jacket partition
Blowhole 11 is communicated with the cavity around oil sprayer bushing 12 with whole upper water sleeve 6, and whole upper water sleeve 6 is arranged close to exhaust side
2；Thermostat mounting seat 4, thermostat mounting seat 4 and cylinder cap entirety upper water sleeve are cast with close to exhaust side 2 on top surface of cylinder cover 3
6 exhalant canal 8 communicates.
Bolt hole 5 is distributed with around thermostat mounting seat 4, bottom is cast with thermostat partial circulating backwater hole 9, with water pump
Low pressure intake antrum communicates.
The each cylinder in upper water hole 10 is arranged four, and two close to air inlet side 1, two close exhaust sides 2, opposite cylinder
Center near symmetrical arrangement.
Upper and lower water jacket partition blowhole 11 casts out with inlet and outlet road shape.
The height L1 of lower water jacket are as follows: 15~25mm.
The height L2 of upper water sleeve are as follows: 55~65mm.
Distance H1 of the thermostat mounting seat away from cylinder axis are as follows: 125~135mm；H2 are as follows: 60~65mm.
Upper and lower 11 diameter D of water jacket partition blowhole are as follows: 32~34mm.
The present invention can reach following the utility model has the advantages that the cylinder designed using this upper and lower water jacket afterwards by adopting the above technical scheme
Lid, lower layer's water jacket are arranged partition between two cylinders, form the independent water inlet cavity configuration of each cylinder, effectively guide coolant liquid from cylinder
Lid surrounding pours into the high temperature position of middle section；Partition between upper and lower water jacket, forces coolant liquid to flow close to bottom plate, effectively protects
The overall stiffness of bottom plate cooled down and improve cylinder cover is demonstrate,proved；Around upper and lower water jacket partition blowhole and oil sprayer bushing
Cavity ensure that fuel injector periphery has enough coolant liquids to pass through, it is ensured that fuel injector as the unique passage between upper and lower water jacket
Cooling effect；It is designed using integrated form thermostat mounting seat, does not need manufacture complicated shell and exterior line.Both it can reduce
Cost, and piping connection is eliminated, the installation of assembly of thermostat is simplified, functional reliability is higher, while thermostat is mounted on
Inside cylinder cap, installation space has been saved, has been also beneficial to the mounting arrangements of frontal attachments.
Detailed description of the invention
Fig. 1 is a kind of thermostat partial circulating backwater hole phase of the engine cylinder cap of integrated thermostat mounting seat of the present invention
To the structural schematic diagram of cylinder axis position；
Fig. 2 is a kind of integrated thermostat mounting seat structure of the engine cylinder cap of integrated thermostat mounting seat of the present invention
Schematic diagram；
Fig. 3 is a kind of upper and lower jacket structure for water signal of cylinder head of the engine cylinder cap of integrated thermostat mounting seat of the present invention
Figure；
Fig. 4 is a kind of cylinder head stereochemical structure cross-sectional view of the engine cylinder cap of integrated thermostat mounting seat of the present invention；
Fig. 5 be a kind of cylinder head of the engine cylinder cap of integrated thermostat mounting seat of the present invention up and down water jacket partition blowhole and
Oil sprayer bushing structural schematic diagram.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and embodiments.
As shown in Fig. 1~5, a kind of cylinder head of integrated thermostat mounting seat, comprising: air inlet side 1, exhaust side 2,
Top surface 3, thermostat mounting seat 4, bolt hole 5, whole upper water sleeve 6, independent lower water jacket 7, exhalant canal 8, thermostat partial circulating
Backwater hole 9, upper water hole 10, upper and lower water jacket partition blowhole 11, oil sprayer bushing 12.Cylinder cover bottom surface is cast with water hole 10, every cylinder four
A, two are arranged close to air inlet side 1, two close exhaust sides 2, opposite cylinder axis near symmetrical.Upper water hole 10 with it is each
The independent lower water jacket 7 of cylinder communicates, and independent lower water jacket 7 passes through the sky around upper and lower water jacket partition blowhole 11 and oil sprayer bushing 12
Chamber is communicated with whole upper water sleeve 6, and upper and lower water jacket partition blowhole 11 casts out with inlet and outlet road shape；The cloth of whole upper water sleeve 6 rests against
Nearly exhaust side 2；It is cast with thermostat mounting seat 4 at exhaust side 2 in top surface of cylinder cover 3, with cylinder head water on the whole
The exhalant canal 8 of set 6 communicates.Bolt hole 5 is distributed with around thermostat mounting seat 4, bottom is cast with thermostat partial circulating return water
Hole 9 is communicated with the low pressure intake antrum of water pump.
The height L1 of independent lower water jacket 7 are as follows: 15~25mm.
The height L2 of whole upper water sleeve 6 are as follows: 55~65mm.
Distance H1 of the thermostat mounting seat away from cylinder axis are as follows: 125~135mm；H2 are as follows: 60~65mm.
Upper and lower 11 diameter D of water jacket partition blowhole are as follows: 32~34mm.
When engine operates, coolant liquid, through water hole 10 in cylinder head, is entered from each cylinder surrounding and is independently lauched by cylinder block
Set 7, then pours into the high temperature position of middle section, the high temperature " four angular regions " between cooling valve and fuel injector, then each cylinder
The blowhole of water jacket partition up and down 11 and the cavity around oil sprayer bushing 12 that coolant liquid passes through corresponding cylinder respectively, on the whole
Water jacket 6, forward end flows in the form of cross flow, enters the water cavity nearby of thermostat mounting seat 4 through exhalant canal 8.Work as coolant liquid
When temperature is lower than main valve opening temperature, thermostat main valve is closed, and auxiliary-valve is opened, and upward access is truncated, logical downwards
Road is opened, and thermostat partial circulating backwater hole 9 of the water flow by casting in 4 bottom orifice of thermostat mounting seat is directly entered the low of water pump
Chamber is pressed, engine coolant carries out " partial circulating "；When coolant temperature is more than main valve opening temperature, thermostat main valve is beaten
It opens, auxiliary-valve is closed, and downward access is truncated, and upward access is opened, and cooling water passes through thermostat mounting seat 4 to upstream
Out, it flows to external heat sink to carry out after cooling down, then flows back to water pump low pressure chamber, engine coolant carries out " systemic circulation ".
The double-layer water jacket cylinder head of thermostat mounting seat is integrated using this, each cylinder is independent to be lauched Analysis of Nested Design, improves
The rigidity of piece cylinder head guarantees that the cooling water flow of each cylinder and flow velocity are uniform on cylinder head bottom plate.Simultaneously because oil spout
Device is located at cylinder axis position, and perpendicular to cylinder bottom surface, the same position casting one of water jacket partition above and below each cylinder of cylinder head
The cooling water flow of a through-hole, lower water jacket all can be forced to flow to upper layer water jacket through this hole, be conducive to the cooling of fuel injector, improve
The use reliability of fuel injector.The thermostat mounting seat of integrated form designs, and does not need complicated shell and external connecting tube
Road simplifies the installation of assembly of thermostat, has saved installation space, is conducive to the mounting arrangements of frontal attachments.
Since thermostat mounting seat is integrated in cylinder head, to make compact integral structure, space, installation side are saved
Just, risk of leakage is reduced, the reliability and suitability of diesel engine are improved.Using double-layer water jacket design, independent lower water jacket cloth
It sets, so that each high heat load area at cylinder head plate is obtained uniform, efficient cooling, reduce cylinder head thermic load, while improving cylinder
The rigidity of lid.
The technical concepts and features of above-mentioned specific embodiment only to illustrate the invention, its object is to allow be familiar with this skill
The personage of art can understand the contents of the present invention and be implemented, and can not limit full content of the invention, although referring to before
Stating embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned reality
It applies technical solution documented by example and carries out formal modification or equivalent replacement of some of the technical features.It is all
Made form modification, equivalent replacement etc., should be included in rights protection model of the invention within thinking enlightenment of the invention
Within enclosing.
Claims (8)
1. a kind of engine cylinder cap of integrated thermostat mounting seat, comprising: air inlet side (1), exhaust side (2), top surface
(3), thermostat mounting seat (4), bolt hole (5), whole upper water sleeve (6), independent lower water jacket (7), exhalant canal (8), section temperature
Device partial circulating backwater hole (9), upper water hole (10), upper and lower water jacket partition blowhole (11), oil sprayer bushing (12)；It is characterized by:
Cylinder cover bottom surface is cast with water hole (10), and upper water hole (10) communicates with the independent lower water jacket (7) of each cylinder, and independent lower water jacket (7) passes through
Upper and lower water jacket partition blowhole (11) is communicated with the cavity around oil sprayer bushing (12) with whole upper water sleeve (6), whole upper water sleeve
(6) be arranged close to exhaust side (2)；It is cast with thermostat mounting seat (4), saves close to exhaust side (2) on top surface of cylinder cover (3)
Warm device mounting seat (4) communicates with the exhalant canal (8) of cylinder cap entirety upper water sleeve (6).
2. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: section temperature
Be distributed with bolt hole (5) around device mounting seat (4), bottom is cast with thermostat partial circulating backwater hole (9), with the low pressure of water pump into
Water cavity communicates.
3. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: each
Cylinder is arranged four upper water hole (10), two close to air inlet side (1), two close to exhaust side (2), opposite cylinder axis is close
Seemingly it is arranged symmetrically.
4. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: up and down
Water jacket partition blowhole (11) casts out with inlet and outlet road shape.
5. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: independent
The height L1 of lower water jacket (7) are as follows: 15~25mm.
6. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: whole
The height L2 of upper water sleeve (6) are as follows: 55~65mm.
7. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: section temperature
Distance H1 of the device mounting seat (4) away from cylinder axis are as follows: 125~135mm；H2 are as follows: 60~65mm.
8. a kind of engine cylinder cap of integrated thermostat mounting seat according to claim 1, it is characterised in that: up and down
Water jacket partition blowhole (11) diameter D are as follows: 32~34mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197336.6A CN109519296B (en) | 2018-10-15 | 2018-10-15 | Engine cylinder cover integrated with thermostat mounting base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197336.6A CN109519296B (en) | 2018-10-15 | 2018-10-15 | Engine cylinder cover integrated with thermostat mounting base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519296A true CN109519296A (en) | 2019-03-26 |
| CN109519296B CN109519296B (en) | 2024-05-28 |
Family
ID=65772693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811197336.6A Active CN109519296B (en) | 2018-10-15 | 2018-10-15 | Engine cylinder cover integrated with thermostat mounting base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519296B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852682A (en) * | 2020-06-04 | 2020-10-30 | 浙江义利汽车零部件有限公司 | Engine cooling water jacket system, engine cooling method and vehicle |
| CN114837844A (en) * | 2022-06-01 | 2022-08-02 | 江苏常发农业装备股份有限公司 | Cylinder cover and engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010003356A1 (en) * | 2008-07-07 | 2010-01-14 | 奇瑞汽车股份有限公司 | A v-type engine and a cooling system thereof |
| CN202789169U (en) * | 2012-08-14 | 2013-03-13 | 北京长源朗弘科技有限公司 | Cylinder cover with thermostat installing hole |
| CN105298675A (en) * | 2015-12-07 | 2016-02-03 | 潍柴动力股份有限公司 | Engine and cylinder cover thereof |
| CN207178048U (en) * | 2017-09-05 | 2018-04-03 | 广西玉柴机器股份有限公司 | A kind of cylinder cover for diesel engine |
| CN209100149U (en) * | 2018-10-15 | 2019-07-12 | 第一拖拉机股份有限公司 | A kind of engine cylinder cap of integrated thermostat mounting seat |
-
2018
- 2018-10-15 CN CN201811197336.6A patent/CN109519296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010003356A1 (en) * | 2008-07-07 | 2010-01-14 | 奇瑞汽车股份有限公司 | A v-type engine and a cooling system thereof |
| CN202789169U (en) * | 2012-08-14 | 2013-03-13 | 北京长源朗弘科技有限公司 | Cylinder cover with thermostat installing hole |
| CN105298675A (en) * | 2015-12-07 | 2016-02-03 | 潍柴动力股份有限公司 | Engine and cylinder cover thereof |
| CN207178048U (en) * | 2017-09-05 | 2018-04-03 | 广西玉柴机器股份有限公司 | A kind of cylinder cover for diesel engine |
| CN209100149U (en) * | 2018-10-15 | 2019-07-12 | 第一拖拉机股份有限公司 | A kind of engine cylinder cap of integrated thermostat mounting seat |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852682A (en) * | 2020-06-04 | 2020-10-30 | 浙江义利汽车零部件有限公司 | Engine cooling water jacket system, engine cooling method and vehicle |
| CN111852682B (en) * | 2020-06-04 | 2022-04-05 | 浙江义利汽车零部件有限公司 | Engine cooling water jacket system, engine cooling method and vehicle |
| CN114837844A (en) * | 2022-06-01 | 2022-08-02 | 江苏常发农业装备股份有限公司 | Cylinder cover and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109519296B (en) | 2024-05-28 |
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Inventor after: Shang Tansu Inventor after: Liu Shiqian Inventor after: Wang Bin Inventor after: Wang Yanyan Inventor after: Zhang Weixun Inventor after: Wei Minghui Inventor after: Dong Wei Inventor after: Zhou Haisong Inventor after: Zhou Kun Inventor after: Li Zhenyong Inventor after: Wei Mingliang Inventor after: Du Xiaohui Inventor after: Qi Yulong Inventor before: Wei Minghui Inventor before: Liu Shiqian Inventor before: Wang Bin Inventor before: Wang Yanyan Inventor before: Zhang Weixun Inventor before: Dong Wei Inventor before: Shang Tansu Inventor before: Zhou Haisong Inventor before: Zhou Kun Inventor before: Li Zhenyong Inventor before: Wei Mingliang Inventor before: Du Xiaohui Inventor before: Qi Yulong |
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