CN103225536A - Engine piston cooling device controlled by engine speed sensor - Google Patents
Engine piston cooling device controlled by engine speed sensor Download PDFInfo
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- CN103225536A CN103225536A CN2013101325307A CN201310132530A CN103225536A CN 103225536 A CN103225536 A CN 103225536A CN 2013101325307 A CN2013101325307 A CN 2013101325307A CN 201310132530 A CN201310132530 A CN 201310132530A CN 103225536 A CN103225536 A CN 103225536A
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- speed sensor
- piston
- engine
- cooling
- pistons
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
An engine piston cooling device controlled by an engine speed sensor belongs to the technical field of machine design, and comprises cylinders, a cylinder cover, pistons, a connecting rod, a bent axle, a cooling oil passage, an electromagnetic valve and an engine speed sensor, wherein the cylinders are fixedly integrated with the cylinder cover; the pistons are mounted in the space surrounded by the cylinders and the cylinder cover; one end of the connecting rod is connected with the pistons through a piston pin, and the other end of the connecting rod is connected with the bent axle; the cooling oil passage is mounted in the pistons; the electromagnetic valve is mounted in the cooling oil passage; the engine speed sensor is mounted at the front end of the bent axle; analog signals generated by the engine speed sensor are transformed into digital signals through an analog-to-digital conversion module and then the digital signals are transmitted to a cooling oil amount control system; a control system outputs electromagnetic valve control signals so as to control opening degree of the electromagnetic valve. The engine piston cooling device is reasonable in design, simple in strategy control, and suitable for engine systems with various number of cylinders, and can realize intelligent cooling of the pistons.
Description
Technical field
The present invention relates to a kind of cooling unit in mechanical designing technique field, particularly a kind of engine piston cooling unit of engine rotation speed sensor control.
Background technique
In the design process of motor, the Cooling Design of piston is most important.Traditional piston type of cooling as no oil pocket freely spray cooling, coiler circulation cooling, the concussion cooling can not reach desirable cooling effect.Cooling means thermal loss, but this loss is to guarantee that the piston proper functioning is necessary.If the piston undercooling then can produce following harmful effect: 1) thermal loss is too big, rate of fuel consumption increases; 2) temperature difference is too big, and thermal stress is too high; 3) the piston head temperature is lower than 205 ℃, and ring district temperature is lower than 140 ℃, and sulfurous fuels can precipitate, and easily makes the piston corrosion and damage; 4) increase the cooling oil mass, increase the power that oil pump consumes, cost up.Therefore, cool off by any way all need make and cool off appropriateness, promptly make dangerous position obtain necessary temperature drop with minimal heat loss.
Find through retrieval the prior art document, the patent No. is 200410077870.5, the patented technology that name is called the internal combustion engine cooling system provides a kind of device that piston is cooled off by multiinjector, but it can not the cooling degree to piston be controlled under different load.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of engine piston cooling unit of engine rotation speed sensor control is provided, can the different cooling degree of control piston under different loads.
The present invention is achieved through the following technical solutions, the present invention includes cylinder, cylinder head, piston, connecting rod, bent axle, cooling oil duct, solenoid valve, engine rotation speed sensor, cylinder and cylinder head are fixed to be one, piston is installed in the space that cylinder and cylinder head surround, one end of connecting rod is connected with piston by wrist pin, the other end of connecting rod is connected with bent axle, cooling oil duct is installed in the piston, solenoid valve is installed in the cooling oil duct, engine rotation speed sensor is installed in the front end of bent axle, and the aperture of solenoid valve is by the SC sigmal control of engine rotation speed sensor.
Further, the control system of motor is a Control System of Microcomputer in the present invention.
In working procedure of the present invention, the engine rotation speed sensor of installing on the crankshaft front end can be monitored engine speed change, speed probe corner analogue signal is converted into digital signal, microcomputer is accepted after the digital signal through processing-amplification, and the aperture solenoid valve of control electromagnetic valve is according to microcomputer Signal Regulation aperture control cooling medium consumption.
The present invention has following beneficial effect: the present invention is reasonable in design, and control strategy is simple, is applicable to the engine system of various cylinder number, can realize the cooling of piston intelligence.Do not need piston is specially cooled off in cold start-up and low speed operating mode, provide the cooling medium amount few; Provide the cooling medium amount many at high-speed working condition.The thermal fatigue and the thermal stress that prevent piston effectively are excessive, the life-span of having improved piston.Can realize that cooling medium consumption consumes the purpose of appropriateness
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a control system schematic representation of the present invention;
Wherein: 1, cylinder, 2, cylinder head, 3, piston, 4, connecting rod, 5, bent axle, 6, cooling oil duct, 7, solenoid valve, 8, engine rotation speed sensor.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with the technical solution of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2, the present invention includes cylinder 1, cylinder head 2, piston 3, connecting rod 4, bent axle 5, cooling oil duct 6, solenoid valve 7, engine rotation speed sensor 8, cylinder 1 and cylinder head 2 are fixed to be one, piston 3 is installed in the space that cylinder 1 and cylinder head 2 surround, one end of connecting rod 4 is connected with piston 3 by wrist pin, the other end of connecting rod 4 is connected with bent axle 5, cooling oil duct 6 is installed in the piston 3, solenoid valve 7 is installed in the cooling oil duct 6, engine rotation speed sensor 8 is installed in the front end of bent axle 5, the aperture of solenoid valve 7 is by the SC sigmal control of engine rotation speed sensor 8, and the control system of motor is a Control System of Microcomputer.
In working procedure of the present invention, the engine rotation speed sensor monitoring engine speed change of installing on bent axle 5 front ends, sensor corner analogue signal is converted into digital signal, microcomputer is accepted after the digital signal through processing-amplification, the aperture solenoid valve of control electromagnetic valve is according to microcomputer Signal Regulation aperture control cooling medium consumption, repeat above action, crank angle is preserved the solenoid valve aperture behind setting range.
Claims (2)
1. the engine piston cooling unit of engine rotation speed sensor control, comprise cylinder (1), cylinder head (2), piston (3), connecting rod (4) and bent axle (5), cylinder (1) is fixed with cylinder head (2) to be one, piston (3) is installed in the space that cylinder (1) and cylinder head (2) surround, one end of connecting rod (4) is connected with piston (3) by wrist pin, the other end of connecting rod (4) is connected with bent axle (5), it is characterized in that, also comprise cooling oil duct (6), solenoid valve (7) and engine rotation speed sensor (8), cooling oil duct (6) is installed in the piston (3), solenoid valve (7) is installed in the cooling oil duct (6), engine rotation speed sensor (8) is installed in the front end of bent axle (5), and the aperture of solenoid valve (7) is by the SC sigmal control of engine rotation speed sensor (8).
2. the engine piston cooling unit of engine rotation speed sensor control according to claim 1 is characterized in that the control system of motor is a Control System of Microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101325307A CN103225536A (en) | 2013-04-16 | 2013-04-16 | Engine piston cooling device controlled by engine speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101325307A CN103225536A (en) | 2013-04-16 | 2013-04-16 | Engine piston cooling device controlled by engine speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103225536A true CN103225536A (en) | 2013-07-31 |
Family
ID=48836139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101325307A Pending CN103225536A (en) | 2013-04-16 | 2013-04-16 | Engine piston cooling device controlled by engine speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103225536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709625A (en) * | 2019-10-25 | 2021-04-27 | 宝鸡吉利发动机有限公司 | Electronic piston cooling assembly control method and device and automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398507A (en) * | 1981-10-23 | 1983-08-16 | Allis-Chalmers Corporation | Connecting rod spray orifice for cooling of a piston |
| JPH05288051A (en) * | 1992-04-09 | 1993-11-02 | Mitsubishi Heavy Ind Ltd | Piston cooling device |
| CN101548080A (en) * | 2006-12-08 | 2009-09-30 | 丰田自动车株式会社 | Internal combustion engine |
| CN201972776U (en) * | 2010-12-31 | 2011-09-14 | 上海汽车集团股份有限公司 | Engine lubrication system |
| CN202417677U (en) * | 2011-12-02 | 2012-09-05 | 大连海事大学 | Piston cooling system for marine diesel engine |
| CN103038476A (en) * | 2011-01-11 | 2013-04-10 | 三菱重工业株式会社 | Cooling device for engine |
-
2013
- 2013-04-16 CN CN2013101325307A patent/CN103225536A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398507A (en) * | 1981-10-23 | 1983-08-16 | Allis-Chalmers Corporation | Connecting rod spray orifice for cooling of a piston |
| JPH05288051A (en) * | 1992-04-09 | 1993-11-02 | Mitsubishi Heavy Ind Ltd | Piston cooling device |
| CN101548080A (en) * | 2006-12-08 | 2009-09-30 | 丰田自动车株式会社 | Internal combustion engine |
| CN201972776U (en) * | 2010-12-31 | 2011-09-14 | 上海汽车集团股份有限公司 | Engine lubrication system |
| CN103038476A (en) * | 2011-01-11 | 2013-04-10 | 三菱重工业株式会社 | Cooling device for engine |
| CN202417677U (en) * | 2011-12-02 | 2012-09-05 | 大连海事大学 | Piston cooling system for marine diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709625A (en) * | 2019-10-25 | 2021-04-27 | 宝鸡吉利发动机有限公司 | Electronic piston cooling assembly control method and device and automobile |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130731 |