CN103993973A - Air cylinder cover water cavity structure with exhaust valve seat ring cooling water channel - Google Patents
Air cylinder cover water cavity structure with exhaust valve seat ring cooling water channel Download PDFInfo
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- CN103993973A CN103993973A CN201410155757.8A CN201410155757A CN103993973A CN 103993973 A CN103993973 A CN 103993973A CN 201410155757 A CN201410155757 A CN 201410155757A CN 103993973 A CN103993973 A CN 103993973A
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- valve seat
- exhaust valve
- water
- air cylinder
- cylinder cover
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an air cylinder cover water cavity structure with an exhaust valve seat ring cooling water channel. The air cylinder cover water cavity structure comprises an air cylinder cover and an exhaust valve seat ring (6). A water draining cavity (2), an oil sprayer cooling cavity (5) and an air exhausting channel (9) are arranged in the air cylinder cover, a bottom plate water inlet (1) is formed in the air cylinder cover, and the bottom plate water inlet (1) is communicated with a water source. The air cylinder cover water cavity structure is characterized in that an annular water channel (3) is arranged in the area enclosed by the inside of a bottom plate at the lower end of the air exhausting channel (9) and the exhaust valve seat ring (6), one side of the annular water channel (3) is communicated with the oil spray cooling cavity (5), and the other side of the annular water channel is communicated with the water draining cavity (2). The air cylinder cover water cavity structure with the exhaust valve seat ring cooling water channel enhances cooling to the exhaust valve seat ring, reduces the temperature of the exhaust valve seat ring and accordingly enhances the work reliability of the air cylinder cover and the exhaust valve seat ring.
Description
Technical field
The invention belongs to combustion engine cylinder head field, be specifically related to a kind of cylinder head water cavity structure with exhaust valve seat insert cooling water channel.
Background technique
At present, combustion engine cylinder head water cavity structure is mainly to carry out cooling to cylinder head high heat load regions such as base plate, air outlet flue, oil injector hole centers, especially base plate " ridge area " is cooling, casting cooling water channel or boring cooling water channel are being set between exhaust valve, between intake valve and between inlet and exhaust valve, to realize fully cooling to base plate " ridge area ", also can indirectly carry out cooling to air valve seat ring simultaneously, make the temperature field of cylinder head and air valve seat ring in reduced levels, ensured the normal work of cylinder head.Along with the lifting of internal-combustion engine heat load, the heat load of exhaust valve seat insert carrying also improves constantly, at present this to air valve seat ring indirectly cooling channel structure be not enough to exhaust valve seat insert to carry out cooling fully, can cause exhaust valve seat insert temperature higher, cause the heavy wear of exhaust valve and seat ring, even coming off of exhaust valve seat insert.
Summary of the invention
The present invention is exactly for the cooling inadequate problem of exhaust valve seat insert, and has proposed a kind of cylinder head water cavity structure with exhaust valve seat insert cooling water channel.This cylinder head water cavity can carry out exhaust valve seat insert cooling fully, reduces exhaust valve seat insert temperature, reduces the wear problem of exhaust valve and seat ring.
The technical solution used in the present invention: a kind of cylinder head water cavity structure with exhaust valve seat insert cooling water channel, it comprises cylinder head and exhaust valve seat insert 6, described cylinder head inside is provided with lower water cavity 2, oil sprayer cooling chamber 5, air outlet flue 9 and is arranged on the base plate water inlet 1 that cylinder head communicates with water source, in the region that the base plate interior of air outlet flue 9 lower ends and exhaust valve seat insert 6 surround, be provided with water annulus 3, water annulus 3 one sides are communicated with oil sprayer cooling chamber 5, and opposite side is communicated with lower water cavity 2.
The present invention compared with prior art its beneficial effect is: the present invention has strengthened cooling to exhaust valve seat insert, has reduced the temperature of exhaust valve seat insert, thereby has strengthened the reliability of cylinder head and exhaust valve seat insert work.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional view along A-A hatching in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of cylinder head water cavity structure with exhaust valve seat insert cooling water channel, described cylinder head inside is provided with base plate water inlet 1, lower water cavity 2, ridge area cooling water passage 4, exhaust valve seat insert cooling water channel 3, oil sprayer cooling chamber 5, exhaust valve seat insert 6, upper and lower water cavity connecting passage 7, upper water cavity 8 and air outlet flue 9, cooling water enters water cavity 2 under cylinder head by two base plate water inlets 1 that communicate with cylinder body water cavity, cooling moisture two-way afterwards, 4 the ridge area cooling water passages 4 of leading up to converge to oil sprayer cooling chamber 5, another road converges to oil sprayer cooling chamber 5 by two exhaust valve seat insert cooling water channels 3 respectively, enter upper water cavity 8 through upper and lower water cavity connecting passage 7 again, the osculum at last intake duct top in cylinder head flows out.Exhaust valve seat insert cooling water channel is that machine adds water annulus, is jointly made up of cylinder head and exhaust valve seat insert, and water annulus one side is communicated with by boring with water cavity under cylinder cap, and opposite side is communicated with by boring with oil sprayer cooling chamber.
Ridge area cooling water passage 4 also adopts Drilling Water cavity configuration, whole Cooling Water Jacket of Cylinder Head has not only ensured the cooling of the high heat load regions such as base plate ridge area, air outlet flue, oil injector hole center, also strengthen cooling to exhaust valve seat insert, thereby strengthened the reliability of cylinder head and exhaust valve seat insert work.
Claims (1)
1. the cylinder head water cavity structure with exhaust valve seat insert cooling water channel, it comprises cylinder head and exhaust valve seat insert (6), described cylinder head inside is provided with lower water cavity (2), oil sprayer cooling chamber (5), air outlet flue (9) and is arranged on the base plate water inlet (1) that cylinder head communicates with water source, it is characterized in that: in the region that the base plate interior of air outlet flue (9) lower end and exhaust valve seat insert (6) surround, be provided with water annulus (3), water annulus (3) one sides are communicated with oil sprayer cooling chamber (5), and opposite side is communicated with lower water cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155757.8A CN103993973A (en) | 2014-04-18 | 2014-04-18 | Air cylinder cover water cavity structure with exhaust valve seat ring cooling water channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155757.8A CN103993973A (en) | 2014-04-18 | 2014-04-18 | Air cylinder cover water cavity structure with exhaust valve seat ring cooling water channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103993973A true CN103993973A (en) | 2014-08-20 |
Family
ID=51308264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155757.8A Pending CN103993973A (en) | 2014-04-18 | 2014-04-18 | Air cylinder cover water cavity structure with exhaust valve seat ring cooling water channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103993973A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804880A (en) * | 2016-05-12 | 2016-07-27 | 广西玉柴机器股份有限公司 | Cylinder cover |
| CN107461271A (en) * | 2017-09-12 | 2017-12-12 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN114352428A (en) * | 2021-12-16 | 2022-04-15 | 中国船舶重工集团公司第七一一研究所 | Split type cylinder head and cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823214A (en) * | 1981-08-01 | 1983-02-10 | Mitsui Eng & Shipbuild Co Ltd | Cooling structure of exhaust valve seat section |
| CN2787852Y (en) * | 2005-03-22 | 2006-06-14 | 重庆宗申技术开发研究有限公司 | Split type water-cooled cylinder head for single-cylinder overhead engine |
| CN201351542Y (en) * | 2008-12-25 | 2009-11-25 | 中国北车集团大连机车车辆有限公司 | Heavy oil engine drilling hole cooling valve seat type cylinder cover |
| CN101865047A (en) * | 2010-01-28 | 2010-10-20 | 无锡开普动力有限公司 | Water channel structure of cylinder cover |
| CN102392751A (en) * | 2011-12-19 | 2012-03-28 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
| WO2013107928A1 (en) * | 2012-01-18 | 2013-07-25 | Wärtsilä Finland Oy | Cooling arrangement for valve seat |
-
2014
- 2014-04-18 CN CN201410155757.8A patent/CN103993973A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823214A (en) * | 1981-08-01 | 1983-02-10 | Mitsui Eng & Shipbuild Co Ltd | Cooling structure of exhaust valve seat section |
| CN2787852Y (en) * | 2005-03-22 | 2006-06-14 | 重庆宗申技术开发研究有限公司 | Split type water-cooled cylinder head for single-cylinder overhead engine |
| CN201351542Y (en) * | 2008-12-25 | 2009-11-25 | 中国北车集团大连机车车辆有限公司 | Heavy oil engine drilling hole cooling valve seat type cylinder cover |
| CN101865047A (en) * | 2010-01-28 | 2010-10-20 | 无锡开普动力有限公司 | Water channel structure of cylinder cover |
| CN102392751A (en) * | 2011-12-19 | 2012-03-28 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| WO2013107928A1 (en) * | 2012-01-18 | 2013-07-25 | Wärtsilä Finland Oy | Cooling arrangement for valve seat |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804880A (en) * | 2016-05-12 | 2016-07-27 | 广西玉柴机器股份有限公司 | Cylinder cover |
| CN107461271A (en) * | 2017-09-12 | 2017-12-12 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN107461271B (en) * | 2017-09-12 | 2023-03-24 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN114352428A (en) * | 2021-12-16 | 2022-04-15 | 中国船舶重工集团公司第七一一研究所 | Split type cylinder head and cylinder |
| CN114352428B (en) * | 2021-12-16 | 2022-11-08 | 中国船舶集团有限公司第七一一研究所 | Split type cylinder head and cylinder |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |
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| WD01 | Invention patent application deemed withdrawn after publication |