CN107725823B - Cooling water bypass valve of engine - Google Patents
Cooling water bypass valve of engine Download PDFInfo
- Publication number
- CN107725823B CN107725823B CN201711142678.3A CN201711142678A CN107725823B CN 107725823 B CN107725823 B CN 107725823B CN 201711142678 A CN201711142678 A CN 201711142678A CN 107725823 B CN107725823 B CN 107725823B
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- Prior art keywords
- valve
- water outlet
- cavity
- water
- communicated
- Prior art date
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- 239000000498 cooling water Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention belongs to the technical field of production and manufacturing of marine engines, and particularly relates to a cooling water bypass valve of an engine, which comprises a valve cavity, wherein the valve cavity is provided with a water inlet for cooling water to flow in and two water outlets for cooling water to flow out, namely a first water outlet and a second water outlet; a valve core is arranged in the valve cavity and is movably arranged in the valve cavity, and the valve core can control the water inlet to be selectively communicated with the first water outlet or the second water outlet when moving in the valve cavity; the first water outlet is communicated with a water inlet of an engine intercooler, the second water outlet is communicated with a cooling water cavity of an engine body, and the water inlet is communicated with a water outlet of an engine cooling water pump. The bypass valve can selectively control low-temperature water to flow into the intercooler according to the requirements, so that the intercooler can cool air to an adaptive temperature according to the requirements of working conditions, and the combustion efficiency of an engine is ensured.
Description
Technical Field
The invention belongs to the technical field of production and manufacturing of marine engines, and particularly relates to a cooling water bypass valve of an engine.
Background
In order to improve the combustion efficiency of the marine engine, the inventor provides a new engine air supply mode, namely, air is mixed with exhaust gas of an engine respiratory system and then is introduced into a piston cylinder for combustion supporting, and the air supply mode can effectively improve the combustion efficiency of fuel. The mixed gas needs to be cooled by the intercooler before entering the engine, however, the temperature of the intercooler is different under different operation conditions of the engine, the air inlet temperature is higher under high-load conditions, the intercooler needs to be cooled at the moment, and the air inlet temperature is generally 25% lower under low-load conditions, and if low-temperature water enters the intercooler to cool air at the moment, the air inlet temperature is too low, so that the combustion efficiency can be influenced.
Disclosure of Invention
The invention aims to provide a cooling water bypass valve of an engine, which can control low-temperature water to enter an intercooler.
In order to achieve the above purpose, the present invention provides the following technical solutions: the cooling water bypass valve of the engine comprises a valve cavity, wherein the valve cavity is provided with a water inlet for cooling water to flow in, and two water outlets for cooling water to flow out, namely a first water outlet and a second water outlet; a valve core is arranged in the valve cavity and is movably arranged in the valve cavity, and the valve core can control the water inlet to be selectively communicated with the first water outlet or the second water outlet when moving in the valve cavity; the first water outlet is communicated with a water inlet of an engine intercooler, the second water outlet is communicated with a cooling water cavity of an engine body, and the water inlet is communicated with a water outlet of an engine cooling water pump.
The valve core is arranged on a valve seat, the valve seat is provided with a cylindrical part, the cylindrical part is embedded in a mounting hole formed in the valve cavity, the outer end of the valve seat is provided with a connecting flange, and the connecting flange is connected with the end face of an orifice of the mounting hole; the valve core is of a disk-mounted structure perpendicular to the axis of the cylindrical part, the valve core is connected with a valve rod parallel to the axis of the cylindrical part, the valve rod penetrates through the valve seat and protrudes to the outer side of the valve seat, and a driving unit for driving the valve rod to stretch along the axial direction is arranged on the outer side of the valve seat.
The valve cavity comprises a cylindrical inner cavity coaxial with the mounting hole, the water inlet is positioned on the side wall of the cylindrical inner cavity, the diameter of the cylindrical inner cavity is larger than the inner diameter of the cylindrical part, and the inner end of the cylindrical part is flush with the end surface of one side of the cylindrical inner cavity close to the mounting hole or protrudes into the cylindrical inner cavity; one side of the valve core is matched with the inner end of the cylindrical part in an opening and closing way, and the other side of the valve core is matched with the end part of one side of the cylindrical inner cavity, which is far away from the mounting hole, in an opening and closing way.
The second water outlet is formed in the side wall of the mounting hole, and a water outlet communicated with the second water outlet is formed in the cylindrical part; the first water outlet is communicated with one end, far away from the mounting hole, of the cylindrical inner cavity.
The side wall of the mounting hole is provided with an annular groove, the second water outlet is arranged in the annular groove, the annular groove and the outer ring surface of the cylindrical part form an annular water cavity, and the water outlet is communicated with the annular water cavity.
The driving unit comprises a cover cap arranged on the outer side of a connecting flange of the valve seat and a piston which is arranged in the cover cap and forms sliding fit with the inner annular surface of the cover cap along the axial direction of the cover cap, the valve rod is fixedly connected with the piston, a pressure spring is arranged between the piston and the valve seat, and an air inlet is arranged on one side, opposite to the pressure spring, of the piston and a cavity of a surrounding area of the cover cap.
The two side edges of the valve core are respectively provided with a conical surface, and the inner section of the cylindrical part and one end of the cylindrical inner cavity, which is far away from the mounting hole, are respectively provided with a chamfer matched with the conical surfaces.
A guide sleeve is arranged in a valve rod hole of the valve seat, through which the valve rod passes, O-shaped sealing rings are arranged between the outer annular surface of the guide sleeve and the inner annular surface of the valve rod hole and between the inner annular surface of the guide sleeve and the outer annular surface of the valve rod, and O-shaped sealing rings are also arranged between the outer annular surface of the cylindrical part and the inner annular surface of the mounting hole.
The second water outlet is communicated with a water outlet pipeline of the intercooler, and a water outlet pipeline of the intercooler is communicated with the engine cooling water cavity.
The invention has the technical effects that: the bypass valve can selectively control low-temperature water to flow into the intercooler according to the requirements, so that the intercooler can cool air to an adaptive temperature according to the requirements of working conditions, and the combustion efficiency of an engine is ensured.
Drawings
FIG. 1 is a cross-sectional view of a cooling water bypass valve of an engine provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a valve body of a cooling water bypass valve of an engine provided by an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a valve body of a cooling water bypass valve of an engine according to an embodiment of the present invention;
FIG. 4 is a schematic view of an engine cooling water bypass valve assembled with a cooling water unit according to an embodiment of the present invention;
fig. 5 is a schematic perspective view showing another view angle when a cooling water bypass valve of an engine is assembled with a cooling water unit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
1-5, a cooling water bypass valve for an engine comprises a valve cavity, wherein the valve cavity is provided with a water inlet for cooling water to flow in, and two water outlets for cooling water to flow out, namely a first water outlet 8 and a second water outlet 9; a valve core 2 is arranged in the valve cavity, the valve core 2 is movably arranged in the valve cavity, and the valve core 2 can control the water inlet to be selectively communicated with the first water outlet 8 or the second water outlet 9 when moving in the valve cavity; the first water outlet 8 is communicated with a water inlet of an engine intercooler, the second water outlet 9 is communicated with a cooling water cavity of an engine body, and the water inlet is communicated with a water outlet of an engine cooling water pump. In the embodiment of the invention, the cooling water bypass valve is arranged in a cooling water integrated unit, and the cooling water integrated unit is integrally cast and formed and comprises a low-temperature water supply pipeline, a water return pipeline and a high-temperature water supply pipeline. Preferably, the valve core 2 is mounted on a valve seat 1, the valve seat 1 is provided with a cylindrical part 14, the cylindrical part 14 is embedded in a mounting hole formed in the valve cavity, the outer end of the valve seat 1 is provided with a connecting flange 15, and the connecting flange 15 is connected with the orifice end face of the mounting hole; the valve core 2 is of a disc-mounted structure perpendicular to the axis of the cylindrical portion 14, the valve core 2 is connected with a valve rod 4 parallel to the axis of the cylindrical portion 14, the valve rod 4 penetrates through the valve seat 1 and protrudes to the outer side of the valve seat 1, and a driving unit for driving the valve rod 4 to stretch in the axial direction is arranged on the outer side of the valve seat 1. Preferably, the valve cavity comprises a cylindrical inner cavity 7 coaxial with the mounting hole, the water inlet is positioned on the side wall of the cylindrical inner cavity 7, the diameter of the cylindrical inner cavity 7 is larger than the inner diameter of the cylindrical part 14, and the inner end of the cylindrical part 14 is flush with the end surface of the cylindrical inner cavity 7 close to the side of the mounting hole or protrudes into the cylindrical inner cavity 7; one side of the valve core 2 is matched with the inner end of the cylindrical part 14 in an opening and closing way, and the other side of the valve core is matched with the end part of one side of the cylindrical inner cavity 7 far away from the mounting hole in an opening and closing way. Preferably, the second water outlet 9 is formed on the side wall of the mounting hole, and the cylindrical portion 14 is provided with a water outlet hole 16 communicated with the second water outlet 9; the first water outlet 8 is communicated with one end, far away from the mounting hole, of the cylindrical inner cavity 7. Preferably, a ring groove 10 is provided on the side wall of the mounting hole, the second water outlet 9 is provided in the ring groove 10, the ring groove 10 and the outer ring surface of the cylindrical portion 14 form an annular water cavity, and the water outlet hole 16 is communicated with the annular water cavity. Preferably, the driving unit comprises a cover 3 arranged on the outer side of a connecting flange 15 of the valve seat 1, and a piston 5 which is arranged in the cover 3 and forms sliding fit with the inner annular surface of the cover 3 along the axial direction of the cover 3, the valve rod 4 is fixedly connected with the piston 5, a pressure spring 6 is arranged between the piston 5 and the valve seat 1, and an air inlet 13 is arranged on a cavity of the back side of the piston 5 and the pressure spring 6 and the surrounding area of the cover 3. Preferably, conical surfaces are arranged at the edges of two sides of the valve core 2, and chamfers matched with the conical surfaces are arranged at the inner section of the cylindrical part 14 and one end of the cylindrical inner cavity, which is far away from the mounting hole. Preferably, a guide sleeve 11 is arranged in a valve rod hole of the valve seat 1 for the valve rod 4 to pass through, O-shaped sealing rings are arranged between the outer annular surface of the guide sleeve 11 and the inner annular surface of the valve rod hole and between the inner annular surface of the guide sleeve 11 and the outer annular surface of the valve rod 4, and O-shaped sealing rings are also arranged between the outer annular surface of the cylindrical part 14 and the inner annular surface of the mounting hole. Preferably, the second water outlet 9 is communicated with a water outlet pipeline 12 of the intercooler, and the water outlet pipeline 12 of the intercooler is communicated with the cooling water cavity of the engine.
The bypass valve can selectively control low-temperature water to flow into the intercooler according to the requirements, so that the intercooler can cool air to an adaptive temperature according to the requirements of working conditions, and the combustion efficiency of an engine is ensured.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. A cooling water bypass valve for an engine, characterized by: comprises a valve cavity, wherein the valve cavity is provided with a water inlet for cooling water to flow in and two water outlets for cooling water to flow out, namely a first water outlet (8) and a second water outlet (9); a valve core (2) is arranged in the valve cavity, the valve core (2) is movably arranged in the valve cavity, and the valve core (2) can control the water inlet to be selectively communicated with the first water outlet (8) or the second water outlet (9) when moving in the valve cavity; the first water outlet (8) is communicated with a water inlet of an engine intercooler, the second water outlet (9) is communicated with a cooling water cavity of an engine body, and the water inlet is communicated with a water outlet of an engine cooling water pump;
the valve core (2) is arranged on a valve seat (1), the valve seat (1) is provided with a cylindrical part (14), the cylindrical part (14) is embedded in a mounting hole formed in the valve cavity, the outer end of the valve seat (1) is provided with a connecting flange (15), and the connecting flange (15) is connected with the end face of an orifice of the mounting hole; the valve core (2) is of a disc-shaped structure perpendicular to the axis of the cylindrical part (14), the valve core (2) is connected with a valve rod (4) parallel to the axis of the cylindrical part (14), the valve rod (4) penetrates through the valve seat (1) and protrudes to the outer side of the valve seat (1), and a driving unit for driving the valve rod (4) to stretch along the axial direction is arranged on the outer side of the valve seat (1);
the valve cavity comprises a cylindrical inner cavity (7) coaxial with the mounting hole, the water inlet is positioned on the side wall of the cylindrical inner cavity (7), the diameter of the cylindrical inner cavity (7) is larger than the inner diameter of the cylindrical part (14), and the inner end of the cylindrical part (14) is flush with the end surface of one side of the cylindrical inner cavity (7) close to the mounting hole or protrudes into the cylindrical inner cavity (7); one side of the valve core (2) is matched with the inner end of the cylindrical part (14) in an opening and closing manner, and the other side of the valve core is matched with the end part of one side, far away from the mounting hole, of the cylindrical inner cavity (7) in an opening and closing manner;
the second water outlet (9) is formed in the side wall of the mounting hole, and a water outlet (16) communicated with the second water outlet (9) is formed in the cylindrical part (14); the first water outlet (8) is communicated with one end, far away from the mounting hole, of the cylindrical inner cavity (7);
the side wall of the mounting hole is provided with a ring groove (10), the second water outlet (9) is arranged in the ring groove (10), the ring groove (10) and the outer annular surface of the cylindrical part (14) form an annular water cavity, and the water outlet hole (16) is communicated with the annular water cavity;
the second water outlet (9) is communicated with a water outlet pipeline (12) of the intercooler, and the water outlet pipeline (12) of the intercooler is communicated with the cooling water cavity of the engine.
2. The cooling water bypass valve of claim 1, wherein: the driving unit comprises a cover cap (3) arranged on the outer side of a connecting flange (15) of the valve seat (1), and a piston (5) which is arranged in the cover cap (3) and forms sliding fit with the inner annular surface of the cover cap (3) along the axial direction of the cover cap (3), wherein the valve rod (4) is fixedly connected with the piston (5), a pressure spring (6) is arranged between the piston (5) and the valve seat (1), and an air inlet (13) is formed in a cavity surrounded by one side, opposite to the pressure spring (6), of the piston (5) and the cover cap (3).
3. The cooling water bypass valve of claim 2, wherein: both side edges of the valve core (2) are provided with conical surfaces, and the inner end of the cylindrical part (14) and one end, far away from the mounting hole, of the cylindrical inner cavity (7) are provided with chamfer angles matched with the conical surfaces.
4. A cooling water bypass valve as defined in claim 3, wherein: a guide sleeve (11) is arranged in a valve rod hole of the valve seat (1) for the valve rod (4) to pass through, O-shaped sealing rings are arranged between the outer annular surface of the guide sleeve (11) and the inner annular surface of the valve rod hole and between the inner annular surface of the guide sleeve (11) and the outer annular surface of the valve rod (4), and O-shaped sealing rings are also arranged between the outer annular surface of the cylindrical part (14) and the inner annular surface of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142678.3A CN107725823B (en) | 2017-11-17 | 2017-11-17 | Cooling water bypass valve of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142678.3A CN107725823B (en) | 2017-11-17 | 2017-11-17 | Cooling water bypass valve of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725823A CN107725823A (en) | 2018-02-23 |
| CN107725823B true CN107725823B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711142678.3A Active CN107725823B (en) | 2017-11-17 | 2017-11-17 | Cooling water bypass valve of engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN107725823B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758001B (en) * | 2018-06-22 | 2023-08-08 | 福建亿林节能设备股份有限公司 | Pressure-adjustable priority flow dividing valve |
| CN112228224B (en) * | 2020-10-14 | 2021-04-27 | 上海尚实能源科技有限公司 | Self-pressurization sealing pressure oil return bearing cavity of gas turbine engine |
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| CN201367940Y (en) * | 2009-02-12 | 2009-12-23 | 东风富士汤姆森调温器有限公司 | External sealed temperature regulating device |
| CN201593624U (en) * | 2009-10-12 | 2010-09-29 | 天津市圣恺工业技术发展有限公司 | Three-way switching ceramic stop valve |
| CN202745991U (en) * | 2012-09-06 | 2013-02-20 | 北京汽车动力总成有限公司 | Engine cooling system and vehicle |
| CN202812299U (en) * | 2012-08-07 | 2013-03-20 | 马鞍山市天睿实业有限公司 | Tee joint temperature control valve |
| CN203757061U (en) * | 2013-12-26 | 2014-08-06 | 泰安康平纳机械有限公司 | Pneumatic three-position valve device |
| CN204704424U (en) * | 2015-06-04 | 2015-10-14 | 上海光辉仪器仪表有限公司 | A kind of valve pocket internal structure |
| CN206233984U (en) * | 2016-10-28 | 2017-06-09 | 东风商用车有限公司 | Water flow management device of natural gas engine heat exchanger |
| CN207454825U (en) * | 2017-11-17 | 2018-06-05 | 安庆中船柴油机有限公司 | A kind of water bypass of engine |
-
2017
- 2017-11-17 CN CN201711142678.3A patent/CN107725823B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367940Y (en) * | 2009-02-12 | 2009-12-23 | 东风富士汤姆森调温器有限公司 | External sealed temperature regulating device |
| CN201593624U (en) * | 2009-10-12 | 2010-09-29 | 天津市圣恺工业技术发展有限公司 | Three-way switching ceramic stop valve |
| CN202812299U (en) * | 2012-08-07 | 2013-03-20 | 马鞍山市天睿实业有限公司 | Tee joint temperature control valve |
| CN202745991U (en) * | 2012-09-06 | 2013-02-20 | 北京汽车动力总成有限公司 | Engine cooling system and vehicle |
| CN203757061U (en) * | 2013-12-26 | 2014-08-06 | 泰安康平纳机械有限公司 | Pneumatic three-position valve device |
| CN204704424U (en) * | 2015-06-04 | 2015-10-14 | 上海光辉仪器仪表有限公司 | A kind of valve pocket internal structure |
| CN206233984U (en) * | 2016-10-28 | 2017-06-09 | 东风商用车有限公司 | Water flow management device of natural gas engine heat exchanger |
| CN207454825U (en) * | 2017-11-17 | 2018-06-05 | 安庆中船柴油机有限公司 | A kind of water bypass of engine |
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| Publication number | Publication date |
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| CN107725823A (en) | 2018-02-23 |
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