CN102705035A - Engine lubricating system and engine lubricating method - Google Patents
Engine lubricating system and engine lubricating method Download PDFInfo
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- CN102705035A CN102705035A CN2012101809118A CN201210180911A CN102705035A CN 102705035 A CN102705035 A CN 102705035A CN 2012101809118 A CN2012101809118 A CN 2012101809118A CN 201210180911 A CN201210180911 A CN 201210180911A CN 102705035 A CN102705035 A CN 102705035A
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Abstract
The invention relates to an engine lubricating system and an engine lubricating method. The engine lubricating system includes an oil sump for storing engine oil, an engine oil pump pumping engine oil from the oil sump, a main oil gallery receiving the engine oil pumped by the engine oil pump, a piston cooling nozzle oil gallery connected with the main oil gallery in parallel, used for receiving the engine oil pumped by the engine oil pump, and provided with a piston cooling nozzle directed at the air exhaust side of a piston, an engine oil electromagnetic valve arranged in the piston cooling nozzle oil gallery, and an electromagnetic valve control device used for controlling the switch of the engine oil electromagnetic valve according to the temperature of the engine oil and the piston and starting the engine oil electromagnetic valve when the temperature of the engine oil is lower than the preset value of the engine oil temperature or the temperature of the piston is higher than the preset value of the piston temperature, wherein the preset value of the engine oil temperature is smaller than the preset value of the piston temperature. The engine lubricating system and the engine lubricating method not only can better cool the piston, but also can quickly increase the temperature of the engine oil when the engine is cold started, and better save the engine oil consumption and ensure the reliability of the engine.
Description
Technical field
The present invention relates to motor, be specifically related to engine lubrication system and engine lubrication method.
Background technique
In general engine lubrication system, machine oil from the oil sump sucking-off, successively arrives main oil gallery through oil cooler and filter cleaner by oil pump, distributes to each component through main oil gallery again, like bearing, piston, piston cooling nozzle etc.Yet when engine cold-start, because oil temperature is lower, viscosity is bigger; When using the oil lubricating of lower temperature, the frictional work of each movement parts is bigger, causes the frictional work of motor also bigger; Produce more extra power loss, increased engine consumption, be unfavorable for energy-saving and emission-reduction.Generally can machine oil be sprayed to piston, rising oil temperature in cooling piston through piston cooling nozzle.Yet, when piston cooling nozzle sprays piston, can only machine oil be sprayed onto piston intake side or piston base, and can not be sprayed onto the higher piston exhaust side of piston heat load because oil circuit moves towards the restriction of layout.Will cause when engine cold-start the machine oil heating rate slower so on the one hand; And on the other hand, when piston temperature is very high, be difficult to it is realized best cooling effect.
In addition, traditional piston cooling nozzle is as long as ato unit will spray machine oil constantly to piston, and when low engine speed was moved, the temperature of piston environment of living in was not high relatively, need not to carry out continuous injection machine oil to piston; And this moment, the rotating speed of oil pump was also relatively low; The pressure of main oil gallery inner engine oil also is in reduced levels; If piston cooling nozzle continues to spray machine oil to piston; Then can have a strong impact on the parts that other also need lubricate or cool off under the low engine speed state, thereby may influence the motor proper functioning.
Summary of the invention
The objective of the invention is to the problems referred to above, a kind of engine lubrication system and engine lubrication method are provided to existing engine lubrication system existence.
According to an aspect of the present invention, a kind of engine lubrication system comprises:
Store the oil sump of machine oil;
Oil pump is from oil sump pumping machine oil;
Main oil gallery, the machine oil of receiving machine oil pump institute pumping;
The piston cooling nozzle oil duct of parallelly connected setting with main oil gallery, the end of piston cooling nozzle oil duct is provided with the piston cooling nozzle of aiming at the piston exhaust side, the machine oil of the same receiving machine oil pump of piston cooling nozzle oil duct institute pumping;
The machine oil solenoid valve that in the piston cooling nozzle oil duct, is provided with, machine oil arrived piston cooling nozzle through the piston cooling nozzle oil duct when machine oil solenoid valve was opened, and machine oil can not arrive piston cooling nozzle through the piston cooling nozzle oil duct during machine oil closed electromagnetic valve; And
Magnetic valve controller; Switch according to oil temperature and piston temperature controller solenoid; When oil temperature is not less than oil temperature predefined value and piston temperature closure plane solenoid when not being higher than the piston temperature predefined value; Open the machine oil solenoid valve when oil temperature is lower than when said oil temperature predefined value or piston temperature are higher than said piston temperature predefined value, wherein said oil temperature predefined value is less than said piston temperature predefined value.
Engine lubrication system of the present invention can also comprise fuel filter and filter cleaner, and wherein from oil sump pumping machine oil, the machine oil that main oil gallery received is earlier through filter cleaner through fuel filter for oil pump.
According to another aspect of the present invention, a kind of engine lubrication method comprises:
When oil temperature is lower than oil temperature predefined value or piston temperature and is higher than the piston temperature predefined value, with oil injection to piston exhaust side position; And
When oil temperature is not less than said oil temperature predefined value and piston temperature when not being higher than said piston temperature predefined value, end said oil injection,
Wherein said oil temperature predefined value is less than said piston temperature predefined value.
Said oil temperature predefined value can be 80 ℃, and said piston temperature predefined value can be 190 ℃.
Engine lubrication system of the present invention and engine lubrication method have the following advantages:
(1) machine oil is sprayed onto the piston exhaust side, cooling piston can improve oil temperature rapidly again when engine cold-start preferably, effectively reduces engine oil viscosity, reduces the frictional work of this operating mode, thereby reduces fuel consume.
(2) through machine oil solenoid valve and magnetic valve controller are set, can be behind engine cold-start machine oil in time stop piston being sprayed machine oil when reaching satisfactory temperature; Under the higher operating mode of load, can open as required simultaneously,, thereby better practice thrift fuel consume and guarantee the reliability of motor when higher load with cooling piston towards exhaust side piston nozzle oil duct.
Description of drawings
Fig. 1 is the structural representation according to an embodiment of engine lubrication system of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, describe content of the present invention in detail.
As shown in Figure 1, engine lubrication system of the present invention can comprise the oil sump (not shown), oil pump 1, main oil gallery 4, fuel filter 8 and piston cooling nozzle oil duct 5.Wherein, oil pump 1 is installed on the engine cylinder-body (not shown), is rotated by direct driving machine oil pump 1 inner and outer rotors of bent axle (not shown), and from oil sump machine oil is pumped to main oil gallery 4 and piston cooling nozzle oil duct 5 respectively through fuel filter 8.For engine lubrication system shown in Figure 1; Can also comprise filter cleaner 6; The part machine oil of the outflow from fuel filter 8 flows into main oil gallery 4 earlier again after filter cleaner 6 filters, distribute to other component that need lubricate (crankshaft oil gallery 7 as shown in fig. 1) by main oil gallery 4 then; Another part machine oil then directly flows into piston cooling nozzle oil duct 5 from fuel filter 8.
The end of piston cooling nozzle oil duct 5 is provided with the piston cooling nozzle (not shown) of aiming at piston exhaust side (not shown), and the plug cooling jet can inject directly on the piston exhaust side with machine oil.Can flow into piston cooling nozzle oil duct 5 through machine oil solenoid valve 2 control machine oil are set, machine oil can arrive piston cooling nozzle through piston cooling nozzle oil duct 5 when machine oil solenoid valve 2 is opened, thereby is injected into the piston exhaust side; Machine oil then can not spray the piston exhaust side through piston cooling nozzle oil duct 5 arrival piston cooling nozzles when machine oil solenoid valve 2 cuts out.The magnetic valve controller (not shown) can be set be connected, so that come the switch of controller solenoid 2 according to oil temperature and piston temperature with machine oil solenoid valve 2.Can be through the oil temperature predefined value being set and the piston temperature predefined value is controlled, for example be not less than oil temperature predefined value and piston temperature when not being higher than the piston temperature predefined value when oil temperature, by magnetic valve controller control closure plane solenoid 2; And when oil temperature is lower than oil temperature predefined value or piston temperature and is higher than the piston temperature predefined value, open machine oil solenoid valve 2 by magnetic valve controller control.Usually, the oil temperature predefined value is less than the piston temperature predefined value, and the oil temperature predefined value can be set to 80 ℃, and the piston temperature predefined value can be set to 190 ℃.
Because oil temperature is when too high, its lubrication effect is relatively poor, and does not have cooling action, for prevent machine oil lubricated and cooling period temperature too high, can also between filter cleaner 6 and main oil gallery 4, oil cooler 3 be set, the machine oil that temperature is too high is lowered the temperature.
During engine cold-start, the machine oil in the oil sump sucks from fuel filter 8 through oil pump 1, flows to filter cleaner 6 and machine oil solenoid valve 2 respectively.The machine oil that flows into filter cleaner 6 from fuel filter 8 gets into main oil gallery 4 through oil cooler 3, distributes to the component that other need lubricate and cool off by main oil gallery 4, makes it reach the lubricated and cooling requirement that needs.At this moment, although piston temperature is not high, oil temperature is lower, far below the oil temperature predefined value, reaches lubrication effect preferably as early as possible in order to make machine oil, and machine oil solenoid valve 2 is opened in magnetic valve controller control.Part machine oil in the fuel filter 8 flows to piston cooling nozzle oil duct 5 through machine oil solenoid valve 2, by the piston cooling nozzle on the piston cooling nozzle oil duct 5 machine oil is sprayed to the piston exhaust side then.Because piston exhaust side temperature is higher, so in cooling piston, can improve oil temperature rapidly, reduce its viscosity, thus the frictional work can reduce engine cold starting the time.When oil temperature reaches the oil temperature predefined value; Because engine start soon; Piston temperature does not also reach the piston temperature predefined value; Closed machine oil solenoid valve 2 by magnetic valve controller this moment, and then the machine oil in the fuel filter 8 all gets into filter cleaner 6, and then distributes to the component that other need lubricate and cool off.
When motor is in than high load working condition; Piston temperature reaches the piston temperature predefined value; And machine oil is more much lower than piston temperature owing to the cooling that oil cooler 3 is arranged, and therefore opens machine oil solenoid valve 2 by magnetic valve controller control; Machine oil sprays to the piston exhaust side through piston cooling nozzle, thereby reduces the heat load of piston.
And when low engine speed was moved, the temperature of piston environment of living in was not high relatively, generally was lower than the piston temperature predefined value, need not to carry out continuous injection machine oil to piston; And this moment, the rotating speed of oil pump was also relatively low, and the pressure of main oil gallery inner engine oil also is in reduced levels.At this moment, by by magnetic valve controller machine oil solenoid valve 2 cutting out, then the machine oil in the fuel filter 8 is all distributed to other component that need lubricate and cool off, and makes it reach lubricated and the cooling requirement, thereby guarantees that motor can proper functioning.
More than combine accompanying drawing that the present invention has been carried out exemplary description, obviously concrete realization of the present invention does not receive the restriction of aforesaid way.It will be understood by those skilled in the art that under the prerequisite that does not break away from the present invention's design, can also make some modifications, interpolation or polishing, all should be regarded as in protection scope of the present invention.
Claims (4)
1. engine lubrication system comprises:
Store the oil sump of machine oil;
Oil pump is from oil sump pumping machine oil;
Main oil gallery, the machine oil of receiving machine oil pump institute pumping;
The piston cooling nozzle oil duct of parallelly connected setting with main oil gallery, the end of piston cooling nozzle oil duct is provided with the piston cooling nozzle of aiming at the piston exhaust side, the machine oil of the same receiving machine oil pump of piston cooling nozzle oil duct institute pumping;
The machine oil solenoid valve that in the piston cooling nozzle oil duct, is provided with, machine oil arrived piston cooling nozzle through the piston cooling nozzle oil duct when machine oil solenoid valve was opened, and machine oil can not arrive piston cooling nozzle through the piston cooling nozzle oil duct during machine oil closed electromagnetic valve; And
Magnetic valve controller; Switch according to oil temperature and piston temperature controller solenoid; When oil temperature is not less than oil temperature predefined value and piston temperature closure plane solenoid when not being higher than the piston temperature predefined value; Open the machine oil solenoid valve when oil temperature is lower than when said oil temperature predefined value or piston temperature are higher than said piston temperature predefined value, wherein said oil temperature predefined value is less than said piston temperature predefined value.
2. the engine lubrication system of claim 1 also comprises fuel filter and filter cleaner, and wherein from oil sump pumping machine oil, the machine oil that main oil gallery received also passes through filter cleaner to oil pump through fuel filter.
3. engine lubrication method comprises:
When oil temperature is lower than oil temperature predefined value or piston temperature and is higher than the piston temperature predefined value, with oil injection to piston exhaust side position; And
When oil temperature is not less than said oil temperature predefined value and piston temperature when not being higher than said piston temperature predefined value, end said oil injection,
Wherein said oil temperature predefined value is less than said piston temperature predefined value.
4. the engine lubrication method of claim 3, wherein said oil temperature predefined value is 80 ℃, said piston temperature predefined value is 190 ℃.
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| CN2012101809118A CN102705035A (en) | 2012-06-01 | 2012-06-01 | Engine lubricating system and engine lubricating method |
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| CN2012101809118A CN102705035A (en) | 2012-06-01 | 2012-06-01 | Engine lubricating system and engine lubricating method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863803A (en) * | 2016-06-20 | 2016-08-17 | 李斯特技术中心（上海）有限公司 | Cooling system of engine piston |
| CN107559063A (en) * | 2017-10-11 | 2018-01-09 | 芜湖钻石航空发动机有限公司 | A kind of engine lubrication system, engine |
| CN109505691A (en) * | 2018-12-18 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | Piston cools down injection system, engine and fuel injection control method |
| CN110344910A (en) * | 2019-07-19 | 2019-10-18 | 奇瑞汽车股份有限公司 | Engine lubrication system and engine |
| CN110671183A (en) * | 2019-11-13 | 2020-01-10 | 吉林大学 | Partitioned cooling device and piston strength improving method based on partitioned cooling |
| CN111706417A (en) * | 2020-06-30 | 2020-09-25 | 潍柴动力股份有限公司 | Lubricating system, oil pump control method, controller and vehicle |
| CN113847140A (en) * | 2021-09-08 | 2021-12-28 | 东风汽车集团股份有限公司 | Range extender lubricating and cooling system, hybrid electric vehicle and control method |
| CN113944531A (en) * | 2021-09-02 | 2022-01-18 | 东风汽车集团股份有限公司 | Engine lubricating oil way system and method |
| CN114233461A (en) * | 2022-02-24 | 2022-03-25 | 潍坊力创电子科技有限公司 | Engine piston cooling control method |
| CN114592963A (en) * | 2022-03-17 | 2022-06-07 | 潍柴动力股份有限公司 | Piston cooling system monitoring method and device and engine |
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| JPS5870020A (en) * | 1981-06-29 | 1983-04-26 | Hino Motors Ltd | Piston cooling and controlling apparatus |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105863803B (en) * | 2016-06-20 | 2018-07-10 | 李斯特技术中心（上海）有限公司 | A kind of engine piston cooling system |
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| CN107559063A (en) * | 2017-10-11 | 2018-01-09 | 芜湖钻石航空发动机有限公司 | A kind of engine lubrication system, engine |
| CN107559063B (en) * | 2017-10-11 | 2023-12-08 | 芜湖钻石航空发动机有限公司 | Engine lubricating system and engine |
| CN109505691A (en) * | 2018-12-18 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | Piston cools down injection system, engine and fuel injection control method |
| CN110344910A (en) * | 2019-07-19 | 2019-10-18 | 奇瑞汽车股份有限公司 | Engine lubrication system and engine |
| CN110671183B (en) * | 2019-11-13 | 2023-09-26 | 吉林大学 | Partition cooling device and piston strength improving method based on partition cooling |
| CN110671183A (en) * | 2019-11-13 | 2020-01-10 | 吉林大学 | Partitioned cooling device and piston strength improving method based on partitioned cooling |
| CN111706417A (en) * | 2020-06-30 | 2020-09-25 | 潍柴动力股份有限公司 | Lubricating system, oil pump control method, controller and vehicle |
| CN113944531A (en) * | 2021-09-02 | 2022-01-18 | 东风汽车集团股份有限公司 | Engine lubricating oil way system and method |
| CN113944531B (en) * | 2021-09-02 | 2023-03-03 | 东风汽车集团股份有限公司 | Engine lubricating oil way control method |
| CN113847140B (en) * | 2021-09-08 | 2023-03-03 | 东风汽车集团股份有限公司 | Range extender lubricating and cooling system, hybrid electric vehicle and control method |
| CN113847140A (en) * | 2021-09-08 | 2021-12-28 | 东风汽车集团股份有限公司 | Range extender lubricating and cooling system, hybrid electric vehicle and control method |
| CN114233461B (en) * | 2022-02-24 | 2022-04-29 | 潍坊力创电子科技有限公司 | Engine piston cooling control method |
| CN114233461A (en) * | 2022-02-24 | 2022-03-25 | 潍坊力创电子科技有限公司 | Engine piston cooling control method |
| CN114592963A (en) * | 2022-03-17 | 2022-06-07 | 潍柴动力股份有限公司 | Piston cooling system monitoring method and device and engine |
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Application publication date: 20121003 |