CN203476439U - Ventilation and heating device for crankcase - Google Patents
Ventilation and heating device for crankcase Download PDFInfo
- Publication number
- CN203476439U CN203476439U CN201220723974.9U CN201220723974U CN203476439U CN 203476439 U CN203476439 U CN 203476439U CN 201220723974 U CN201220723974 U CN 201220723974U CN 203476439 U CN203476439 U CN 203476439U
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- relay
- crankcase
- output
- voltage comparator
- heater
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Abstract
The utility model relates to a ventilation and heating device for a crankcase. The device comprises a ventilation gas-out heater, a temperature sensor, a control circuit and a first relay. The control circuit comprises a first voltage comparator, the ventilation gas-out heater is installed between an air inlet hose and an air outlet hose of the crankcase, the temperature sensor is installed on a car body, the output of the temperature sensor is connected with the first voltage comparator, and the output of the first voltage comparator is connected with the ventilation gas-out heater through the first relay. According to the utility model, the problem that a cold region of a ventilation system of an engine crankcase is frozen is solved; when a car is used in an extremely cold region, the reliability of the car is guaranteed; the ventilation and heating device is simple in structure, and is convenient for whole machine arrangement.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of crankcase ventilation heating equipment.
Background technique
Crankcase ventilation system is one of important constituent element of motor, and its major function is reasonably to control crankcase pressure; Oil gas in crankcase emissions is carried out to separation, the machine oil after separation is got back to oil sump simultaneously.Owing to containing the vehicle of a large amount of moisture content ，Han district work in crank case gases, often there will be crankcase ventilation system to result in blockage owing to freezing, cause sealing place seepage machine oil, finally cause motor to be scrapped.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of vehicle crankcase ventilation system of can avoiding and freezes, and guarantees the crankcase ventilation heating equipment of reliability when vehicle uses in extremely cold area.
Crankcase ventilation heating equipment of the present utility model comprises the hot-air heater that ventilates to, temperature transducer, control circuit, the first relay; Described control circuit comprises the first voltage comparator; The hot-air heater that ventilates to is arranged between crankcase air induction hose and steam outlet pipe, temperature transducer is arranged on vehicle body, the output of temperature transducer is connected to the first voltage comparator, and the output of the first voltage comparator is connected with the hot-air heater that ventilates to by the first relay.
Temperature sensor measurement ambient temperature is also converted to voltage variety output by temperature variation; The first voltage comparator is by voltage and the reference voltage comparison of temperature transducer output, when ambient temperature is exported high level in limited time under lower than crankcase ventilation system normal working temperature, connect the first relay, the hot-air heater that makes to ventilate to is started working, and the air that enters the air of crankcase and get rid of crankcase is heated.
The utility model has solved the cold district of engine crankshaft ventilation system ice formation issues, has guaranteed reliability when vehicle uses in extremely cold area, simple in structure, is convenient to complete machine and arranges.
The utility model can also comprise deaerator heater, the second relay; Described deaerator heater is fixed on crankcase oils gas separating device, and the output of the first voltage comparator is connected with deaerator heater by the second relay.
When ambient temperature lower than crankcase ventilation system normal working temperature under in limited time, the first voltage comparator output high level, connect the first relay and the second relay make to ventilate to hot-air heater and deaerator heater works simultaneously, to entering the air of crankcase and the air of eliminating crankcase, and deaerator heats, further guaranteed reliability when vehicle uses in extremely cold area.
Described control circuit can also comprise second voltage comparator and with door; Crankcase generator power supply is connected to the input of second voltage comparator, and the output of the first voltage comparator and second voltage comparator is connected to two input ends with door; Be connected with the hot-air heater that ventilates to by the first relay with the output of door, or be connected with deaerator heater with the hot-air heater that ventilates to the second relay by the first relay simultaneously.
Second voltage comparator is voltage signal and the reference voltage comparison of generator output, when the voltage signal of generator output is during higher than reference voltage, illustrates that generator is working properly, and second voltage comparator is exported high level.When the first voltage comparator and second voltage comparator are exported high level simultaneously, connect the first relay with door output high level and make to ventilate to hot-air heater, or connect the first relay and the second relay make to ventilate to hot-air heater and deaerator heater simultaneously and start working simultaneously.When the voltage signal of generator output is during lower than reference voltage, whole electrical system existing problems are described, second voltage comparator output low level; Now, no matter the first voltage comparator output is high level or low level, with door output be all low level, the first relay and the disconnection of the second relay, make to ventilate to hot-air heater and deaerator heater all quit work.
If generator output voltage lower than the second comparator reference voltage (reference voltage equals generator normal working voltage), illustrates whole electrical system existing problems, now, car load cannot work, and crankcase ventilation heating system does not need work equally.Therefore, the utility model utilizes second voltage comparator to judge that whether generator output voltage is lower than normal working voltage; If do not work lower than normal working voltage ventilate to hot-air heater, deaerator heater, be convenient to save energy.
The utility model can also adopt following technical proposals.
Crankcase ventilation heating equipment of the present utility model comprises the hot-air heater that ventilates to, ECU, temperature transducer, the first relay; The described hot-air heater that ventilates to is fixed between the air induction hose and steam outlet pipe of crankcase; Temperature transducer is fixed on vehicle body, and the ambient temperature of mensuration is converted to electrical signal and is transferred to ECU; ECU, by voltage signal and the predefined value comparison of generator output, judges that according to the output of temperature transducer whether ambient temperature is lower than crankcase normal working temperature lower limit simultaneously; If the voltage signal of generator output is lower than predefined value, and the ambient temperature that temperature transducer records is lower than crankcase ventilation system normal working temperature lower limit, and ECU output control signal is connected the first relay hot-air heater that makes to ventilate to and started working.
The utility model also comprises deaerator heater and the second relay; Deaerator heater is fixed on the deaerator of crankcase; If the voltage signal of generator output is lower than predefined value, and the ambient temperature that temperature transducer records is lower than crankcase ventilation system normal working temperature lower limit, ECU output control signal is connected the first relay, the second relay make to ventilate to hot-air heater, deaerator heater simultaneously and is started working.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is crankcase ventilation heating equipment embodiment of the present utility model 1 scheme of installation.
Fig. 2 is crankcase ventilation heating equipment embodiment of the present utility model 1 principle schematic.
Fig. 3 embodiment 1 control circuit structured flowchart.
Fig. 4 is crankcase ventilation heating equipment embodiment of the present utility model 2 scheme of installations.
Fig. 5 is crankcase ventilation heating equipment embodiment of the present utility model 2 principle schematic.
Embodiment
Embodiment 1
As shown in Figure 1, 2, crankcase ventilation heating equipment of the present utility model is comprised of the hot-air heater 1 that ventilates to, deaerator heater 2, temperature transducer 8, control circuit 4, the first relay 10 and the second relay 11.Control circuit 4 comprise the first voltage comparator 41, second voltage comparator 42, with door 43.The hot-air heater 1 that ventilates to is fixed between the air induction hose 5 and steam outlet pipe 6 of crankcase by clip, and deaerator heater 2 is fixed on crankcase oils gas separating device 7 by clip.Ventilate to hot-air heater 1, deaerator heater 2 is connected to the output with door 43 by the first relay 10, the second relay 11 and heating wire harness 12,13 respectively.Temperature transducer 8 is arranged on vehicle body.Temperature transducer 8, crankcase generator power supply are connected respectively to the input of the first voltage comparator 41, second voltage comparator 42, and the output of the first voltage comparator 41, second voltage comparator 42 is connected to and 43 two input ends of door.
Crankcase ventilation heating equipment of the present utility model comprises the hot-air heater 1 that ventilates to, deaerator heater 2, ECU9, temperature transducer 8, the first relay 10 and the second relay 11; The described hot-air heater 1 that ventilates to is fixed between the air induction hose 5 and steam outlet pipe 6 of crankcase by clip; Deaerator heater 2 is fixed on the deaerator 7 of crankcase by clip; Temperature transducer 8 is fixed on vehicle body, and the ambient temperature of mensuration is converted to electrical signal and is transferred to ECU9; ECU9, by voltage signal and the predefined value comparison of generator output, judges that according to the output of temperature transducer 8 whether ambient temperature is lower than crankcase normal working temperature lower limit simultaneously; If the voltage signal of generator output is lower than predefined value, and the ambient temperature that temperature transducer 8 records is lower than crankcase ventilation system normal working temperature lower limit, ECU9 output control signal is connected the first relay 10, the second relay 11 make to ventilate to hot-air heater 1, deaerator heater 2 simultaneously and is started working.When ambient temperature is higher than crankcase normal working temperature lower limit, or the voltage of generator output is during lower than normal working voltage, ECU9 output control signal disconnects the first relay 10, the second relay 11 make to ventilate to hot-air heater 1, deaerator heater 2 simultaneously and quits work.
Claims (6)
1. a crankcase ventilation heating equipment, is characterized in that comprising and ventilates to hot-air heater (1), temperature transducer (8), control circuit (4), the first relay (10); Described control circuit (4) comprises the first voltage comparator (41); The hot-air heater (1) that ventilates to is arranged between crankcase air induction hose (5) and steam outlet pipe (6), temperature transducer (8) is arranged on vehicle body, the output of temperature transducer (8) is connected to the first voltage comparator (41), and the output of the first voltage comparator (41) is connected with the hot-air heater that ventilates to (1) by the first relay (10).
2. crankcase ventilation heating equipment according to claim 1, characterized by further comprising deaerator heater (2), the second relay (11); It is upper that described deaerator heater (2) is fixed on crankcase oils gas separating device (7), and the output of the first voltage comparator (41) is connected with deaerator heater (2) by the second relay (11).
3. crankcase ventilation heating equipment according to claim 1, it is characterized in that described control circuit (4) also comprise second voltage comparator (42) and with door (43); Crankcase generator power supply is connected to the input of second voltage comparator (42), and the output of the first voltage comparator (41) and second voltage comparator (42) is connected to two input ends with door (43); Be connected with the hot-air heater that ventilates to (1) by the first relay (10) with the output of door (43).
4. crankcase ventilation heating equipment according to claim 2, it is characterized in that described control circuit (4) also comprise second voltage comparator (42) and with door (43); Crankcase generator power supply is connected to the input of second voltage comparator (42), and the output of the first voltage comparator (41) and second voltage comparator (42) is connected to two input ends with door (43); Be connected with deaerator heater (2) with the hot-air heater that ventilates to (1) with the second relay (11) by the first relay (10) with the output of door (43) simultaneously.
5. a crankcase ventilation heating equipment, is characterized in that comprising and ventilates to hot-air heater (1), ECU (9), temperature transducer (8), the first relay (10); The described hot-air heater that ventilates to (1) is fixed between the air induction hose (5) and steam outlet pipe (6) of crankcase; Temperature transducer (8) is fixed on vehicle body, the ambient temperature of mensuration is converted to electrical signal and is transferred to ECU (9); ECU (9), by voltage signal and the predefined value comparison of generator output, judges that according to the output of temperature transducer (8) whether ambient temperature is lower than crankcase normal working temperature lower limit simultaneously; If the voltage signal of generator output is lower than predefined value, and the ambient temperature that temperature transducer (8) records is lower than crankcase ventilation system normal working temperature lower limit, ECU (9) output control signal is connected the first relay (10) hot-air heater (1) that makes to ventilate to and is started working.
6. crankcase ventilation heating equipment according to claim 5, characterized by further comprising deaerator heater (2) and the second relay (11); Deaerator heater (2) is fixed on the deaerator (7) of crankcase; If the voltage signal of generator output is lower than predefined value, and the ambient temperature that temperature transducer (8) records is lower than crankcase ventilation system normal working temperature lower limit, ECU (9) output control signal is connected the first relay (10), the second relay (11) make to ventilate to hot-air heater (1), deaerator heater (2) simultaneously and is started working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220723974.9U CN203476439U (en) | 2012-12-25 | 2012-12-25 | Ventilation and heating device for crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220723974.9U CN203476439U (en) | 2012-12-25 | 2012-12-25 | Ventilation and heating device for crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476439U true CN203476439U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220723974.9U Expired - Lifetime CN203476439U (en) | 2012-12-25 | 2012-12-25 | Ventilation and heating device for crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476439U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894898A (en) * | 2018-06-26 | 2018-11-27 | 昆明云内动力股份有限公司 | A kind of rebreather of engine escape pipe heating system |
| CN109281729A (en) * | 2018-09-25 | 2019-01-29 | 贵阳吉利发动机有限公司 | A kind of device and automobile engine of anti-air pipeline ice blockage |
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN116255225A (en) * | 2023-03-20 | 2023-06-13 | 重庆长安汽车股份有限公司 | Engine assembly, vehicle and method for reducing engine oil dilution |
-
2012
- 2012-12-25 CN CN201220723974.9U patent/CN203476439U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894898A (en) * | 2018-06-26 | 2018-11-27 | 昆明云内动力股份有限公司 | A kind of rebreather of engine escape pipe heating system |
| CN109281729A (en) * | 2018-09-25 | 2019-01-29 | 贵阳吉利发动机有限公司 | A kind of device and automobile engine of anti-air pipeline ice blockage |
| CN112282891A (en) * | 2019-07-25 | 2021-01-29 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN112282891B (en) * | 2019-07-25 | 2022-02-22 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
| CN116255225A (en) * | 2023-03-20 | 2023-06-13 | 重庆长安汽车股份有限公司 | Engine assembly, vehicle and method for reducing engine oil dilution |
| CN116255225B (en) * | 2023-03-20 | 2024-04-19 | 重庆长安汽车股份有限公司 | Engine assembly, vehicle and method for reducing engine oil dilution |
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Granted publication date: 20140312 |