CN209100128U - Combustion engine cylinder head adjustable cooling system - Google Patents
Combustion engine cylinder head adjustable cooling system Download PDFInfo
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- CN209100128U CN209100128U CN201821455272.0U CN201821455272U CN209100128U CN 209100128 U CN209100128 U CN 209100128U CN 201821455272 U CN201821455272 U CN 201821455272U CN 209100128 U CN209100128 U CN 209100128U
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- cylinder head
- water
- cylinder
- combustion engine
- heat exchanger
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Abstract
The utility model relates to a kind of combustion engine cylinder head adjustable cooling systems, there are inlet and outlet in cylinder head jacket, 4 pairs of interfaces are offered on cylinder head side, position between corresponding two cylinders of each pair of interface, one in each pair of interface is used to place temperature sensor, another is for placing the independent coolant duct being connected with cylinder cover water jacket, 4 independent coolant ducts are connected to Electromagnetic water pump, electromagnetic proportional valve is provided on 4 independent coolant ducts, water outlet is connected with heat exchanger, heat exchanger is connected with water tank, fan is provided with by heat exchanger, water tank is connected with Electromagnetic water pump, water outlet is connected with water inlet constitutes coolant liquid circulation minor loop, controller is connect with electronically controlled proportional valve, ECU and controller, temperature sensor, Electromagnetic water pump connection.It promotes internal combustion engine thermal efficiency 1.5% and overall energy-saving horizontal improves 2%.
Description
Technical field
The utility model belongs to internal-combustion engine cooling system field, and in particular to combustion engine cylinder head adjustable cooling system is fitted
The internal combustion engine independently cooled down for body and cylinder cap.
Background technique
With national economy fast development, as the automobile industry to grow up by petroleum resources, energy supply and demand relationship
Increasingly nervous, energy sustainable development has become the topic of various countries' general concern.As mobile and non-moving type machinery field
Main power source, internal combustion engine is that current application is widest in area, a kind of highest thermal device of the thermal efficiency, but internal combustion engine is through for many years
Occur technical bottleneck after fast development, for example the best modern diesel engine highest effective thermal efficiency of dynamic property is 45% or so,
There are still a large amount of energy losses for its heat to power output process, attached in mechanical loss in addition to discharge loss is not utilized effectively
It is larger that part loses accounting share, it is necessary to structure improvement and Performance Match optimization are carried out to it.
Internal combustion engine fittings are mainly operated by the mode of flywheel end belt pulley Mechanical Driven, air pressure pump, water pump, lubricating oil pump
Equal accessories apparatus are influenced by Speed of Reaction Wheels, are continually obtained mechanical energy and are used for working substance supply, but its actual demand and internal combustion engine
Operating condition matching is poor, and capacity usage ratio is low, it is suppressed that the promotion of internal combustion engine thermal efficiency.It is with internal-combustion engine cooling system
Example, under the conditions of being lower than heat engine water temperature demand, engine operation process only needs coolant liquid partial circulating cooling, mentions without water pump
Watering cycle energy；And water temperature over-high there are engine danger operation, need coolant liquid systemic circulation cooling when, from water inlet to
Water outlet process, engine coolant are influenced by cylinder cap bottom thermal transfer, and it is special that water temperature shows apparent temperature gradient from low to high
Sign, shows that each cylinder actual demand cooling water inflow is not identical, and water pump can not supply enough coolant liquids according to each cylinder cooling requirement,
Cause apparent energy loss.
Summary of the invention
The purpose of the utility model is to provide a kind of combustion engine cylinder head adjustable cooling system and its application methods, according to cold
But liquid temperature feedback parameter, each cylinder coolant rate of independent control reduce coolant liquid under the premise of guaranteeing that internal combustion engine works normally
Heat is taken away, driving accessory losses are reduced while utmostly reducing cylinder head heat transfer loss, further promotes internal combustion engine heat
Efficiency 1.5% and overall energy-saving horizontal improve 2%.
The purpose of this utility model is achieved through the following technical solutions: a kind of combustion engine cylinder head adjustable cooling system, by
Cylinder head, cylinder head jacket, cylinder body, Electromagnetic water pump, heat exchanger, fan, water tank, ECU and controller composition；The cylinder head
There are inlet and outlet on water jacket, 4 pairs of interfaces, the position between corresponding two cylinders of each pair of interface are offered on cylinder head side
It sets, for placing temperature sensor, another is used to place the independence being connected with cylinder cover water jacket cold one in each pair of interface
But liquid pipe road, 4 independent coolant ducts are connected to Electromagnetic water pump, are provided with electromagnetic proportional valve on 4 independent coolant ducts,
The position of 4 temperature sensors is 4 independences between 3 adjacent two cylinders, between water outlet and cylinder adjacent thereto
Cooling independent cooling pipe and the link position of cylinder head jacket be between 3 adjacent two cylinders, water inlet and with its phase
Between adjacent cylinder, water outlet is connected with heat exchanger, and heat exchanger is connected with water tank, and fan, water tank and electricity are provided with by heat exchanger
Magneto-pump is connected, and water outlet is connected with water inlet constitutes coolant liquid circulation minor loop, and controller is connect with electronically controlled proportional valve, ECU
It is connected with controller, temperature sensor, Electromagnetic water pump.
The application method of a kind of combustion engine cylinder head adjustable cooling system of the utility model: by warm in cylinder head jacket
It spends sensor signal and determines that coolant liquid augments demand, using Electromagnetic water pump and the cooling liquid measure of electronically controlled proportional valve soft readjustment, with full
Sufficient internal combustion engine coolant temperature suitable required for operating normally.Specific control method is as follows:
1) under internal combustion engine normal running (operation) conditions, internal cylinder temperature, tach signal are acquired using sensor, and be passed to
In ECU；
2) ECU judges information according to revolving speed has been stored, and judges whether internal-combustion engine rotational speed is lower than idling mode；
If 3) judgement internal-combustion engine rotational speed is lower than idling mode, switch off the pump and proportioning valve；
4) if judgement internal-combustion engine rotational speed is higher than idling mode, ECU is judged using preset target temperature,
Whether each cylinder coolant temperature reaches target value；
5) judge that if current each cylinder coolant temperature is less than the target value of setting, that is, meets the requirements, result is returned
ECU is looped to determine again；
6) judge that if current each cylinder coolant temperature is more than the target value of setting, starts water pump, control corresponding proportion valve
Aperture；
7) judge whether current each cylinder coolant temperature is less than the target value of setting again, continue to control if beyond target value
Corresponding proportion valve opening processed loops to determine result return ECU if can close proportioning valve without departing from target value again.
It has the beneficial effect that:
The utility model realizes each cylinder coolant rate independent control function, can be in minimum coolant rate demand item
Meet internal combustion engine self-operating requirement under part, weaken each cylinder cylinder cap bottom temp inhomogeneities feature, reduces cylinder head heat transfer damage
Pump consumption, the energy loss of overall reduction complete machine are reduced while mistake.Under the premise of guaranteeing that internal combustion engine works normally, subtract in due course
Few coolant liquid takes away heat, while utmostly reducing cylinder head heat transfer loss, reduces driving accessory losses, is further promoted
Internal combustion engine thermal efficiency 1.5% and overall energy-saving horizontal improve 2%.
The utility model is directed to body and cylinder cap independence cooling type internal combustion engine, cancels the mechanical water of former flywheel end belt driving
Pump and thermostat remove thermostat, the decoupling of water pump Yu flywheel end belt may be implemented using the Electromagnetic water pump independently driven.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of combustion engine cylinder head adjustable cooling system of the utility model；
Fig. 2 is a kind of flow chart of the application method of combustion engine cylinder head adjustable cooling system of the utility model.
Specific embodiment
Make further detailed analysis to technical solution below in conjunction with attached drawing and example to illustrate.
As shown in Figure 1, the utility model provides a kind of combustion engine cylinder head adjustable cooling system, by cylinder head, cylinder head
Water jacket, cylinder body 2, Electromagnetic water pump 8, heat exchanger 5, fan 6, water tank 7, ECU9 and controller 11 form；The cylinder head jacket
On have water inlet 1 and water outlet 4, offer 4 pairs of interfaces on cylinder head side, the position between corresponding two cylinders of each pair of interface
It sets, for placing temperature sensor, another is used to place the independence being connected with cylinder cover water jacket cold one in each pair of interface
But liquid pipe road, 4 independent coolant ducts are connected to Electromagnetic water pump 7, are provided with electromagnetic proportional valve on 4 independent coolant ducts
The position of 10,4 temperature sensors is 4 between 3 adjacent two cylinders, between water outlet and cylinder adjacent thereto
Independent cooling independent cooling pipe and the link position of cylinder head jacket be between 3 adjacent two cylinders, water inlet 1 and with
Between its adjacent cylinder, water outlet 4 is connected with heat exchanger 5, and heat exchanger 5 is connected with water tank 7, is provided with fan by heat exchanger 5
6, water tank 7 is connected with Electromagnetic water pump 8, and water outlet 4 is connected with water inlet 1 constitutes coolant liquid circulation minor loop, controller 11 and electricity
It controls proportioning valve 10 to connect, ECU 9 and controller 11, temperature sensor, Electromagnetic water pump 8 connect.
The utility model processes arrangement interface in position from bottom and between cylinder from internal combustion engine Primordial Qi cylinder cap side, connects
Mouth is communicated with cylinder head jacket, 8 interfaces is arranged altogether, for disposing thermal resistance type temperature sensor and coolant duct, pipeline
It is connected with electronically controlled proportional valve and Electromagnetic water pump, realizes that each cylinder coolant rate is separately adjustable, and to all newly-increased connection of cylinder head
Place is sealed leakproof.
Under the premise of guaranteeing that internal combustion engine works normally, coolant liquid is reduced in due course and takes away heat, utmostly reduces cylinder head
While heat transfer loss, driving accessory losses are reduced, internal combustion engine thermal efficiency 1.5% is further promoted and overall energy-saving horizontal improves
2%.
The independent cooling independent cooling pipe of 4 of the utility model and the link position of cylinder head jacket are 3 adjacent
Between two cylinders, between water inlet 1 and cylinder adjacent thereto, such as the independent coolant pipe of electromagnetic proportional valve Y1 is installed
Road is for cooling down the first cylinder 12, and when the signal that ECU collects temperature sensor is more than target temperature, Electromagnetic water pump 8 is driven
Coolant liquid enters the position between the first cylinder 12 and water inlet by independent coolant duct, and independent coolant duct flows into cylinder
The coolant liquid of body 2 is influenced to flow to 12 direction of cylinder for cooling down the by the coolant liquid in cylinder body 2 to the flowing of 4 direction of water outlet
One cylinder 12 is similarly equipped with the independent coolant duct of electromagnetic proportional valve Y2 for cooling down the second cylinder 13, is equipped with electromagnetism
The independent coolant duct of proportioning valve Y3 is equipped with the independent coolant duct Y4 of electromagnetic proportional valve for cooling down third cylinder 14
For cooling down the second cylinder 15, due to the directionality of coolant flow, the temperature of the 4th cylinder 15 is greater than third cylinder 14 and is greater than
Second cylinder 13 is greater than the first cylinder 12, temperature sensor T1、T2T3And T4Numerical value it is different, so cylinder bottom exist it is uniform special
Property, the utility model, can be in minimum cooling liquid stream by the flow of the coolant liquid around each cylinder of accurate independent control
Meet internal combustion engine self-operating requirement under amount demand condition, weaken each cylinder cylinder cap bottom temp inhomogeneities feature, reduces cylinder
Pump consumption, the energy loss of overall reduction complete machine are reduced while covering heat transfer loss.
A kind of flow chart of the application method of combustion engine cylinder head adjustable cooling system as shown in Figure 2, by cylinder head water
Temperature sensor signal determines that coolant liquid augments demand in covering, and utilizes Electromagnetic water pump and electronically controlled proportional valve soft readjustment coolant liquid
Amount, to meet coolant temperature suitable required for internal combustion engine operates normally.Specific steps are as follows:
1) under engine normal running (operation) conditions, acquire each cylinder temperature signal using internal cylinder temperature sensor, and by its
In incoming ECU.
2) ECU judges information using pre-set revolving speed, if judgement internal-combustion engine rotational speed is less than or equal to 800r/min,
When i.e. internal-combustion engine rotational speed will be shut down lower than idling mode, then ECU controls Electromagnetic water pump and proportioning valve and closes, water outlet 4 with enter
The mouth of a river 1, which is connected, constitutes coolant liquid circulation minor loop for cooling down.
3) if judgement internal-combustion engine rotational speed is greater than 800r/min, ECU continues with preset target coolant liquid temperature
Degree is judged whether each cylinder coolant temperature reaches 85 DEG C of target value.
3) judge that if current each cylinder coolant temperature Ti is less than 85 DEG C of target value temperature of setting, circulation is sentenced again
Whether disconnected internal-combustion engine rotational speed is no more than 800r/min
4) judge that if current each cylinder coolant temperature Ti is more than 85 DEG C of target value temperature of setting, ECU controls electromagnetism
Water pump is opened, and determines that coolant liquid augments demand according to gained temperature signal, transmits a signal to controller, is controlled corresponding cooling
Electronically controlled proportional valve Yj aperture on liquid pipeline.
If 4) judge that current Ti temperature is greater than 85 DEG C of target value temperature of setting again, corresponding electronically controlled proportional valve Yj after
It is continuous to open.
If 5) judge that current Ti temperature lower than 85 DEG C of target value temperature of setting, closes valve, terminates this circulation,
Judge whether internal-combustion engine rotational speed is no more than 800r/min again.
The Electromagnetic water pump of the utility model only internal combustion engine start operation after, water outlet temperature reach 85 DEG C when unlatching,
Avoid energy consumption of the former Mechanical Driven water pump in cooling liquid of IC engine partial circulating demand；It is lower than idling in internal-combustion engine rotational speed
When will shut down, ECU can be switched off the pump in time by idling decision logic, reduced and run institute's band in shutdown phase Electromagnetic water pump
The unnecessary energy loss come.All equal work done rate conversions of improved power consumption equipment, to characterize engine power consumption
Part is simultaneously included in the calculating of engine output work correlation values.Under declared working condition carry out performance comparative experimental research the result shows that,
Under the conditions of identical fuel flow, engine effective thermal efficiency improves about 1.5% compared to original machine after transformation；And in constant power item
Under part, the former is more fuel-efficient, and energy-saving horizontal improves about 2%.
Claims (1)
1. a kind of combustion engine cylinder head adjustable cooling system, it is characterised in that: by cylinder head, cylinder head jacket, cylinder body, electromagnetism water
Pump, heat exchanger, fan, water tank, ECU and controller composition；There are inlet and outlet, cylinder head in the cylinder head jacket
4 pairs of interfaces are offered on side, each pair of interface corresponds to the position between two cylinders, and one in each pair of interface is for placing temperature
Sensor is spent, another is for placing the independent coolant duct being connected with cylinder cover water jacket, 4 independent coolant ducts and electricity
Magneto-pump is connected to, and electromagnetic proportional valve is provided on 4 independent coolant ducts, and the position of 4 temperature sensors is 3 adjacent
Between two cylinders, between water outlet and cylinder adjacent thereto, 4 independent cooling independent cooling pipes and cylinder head jacket
Link position is water outlet and heat exchanger phase between 3 adjacent two cylinders, between water inlet and cylinder adjacent thereto
Even, heat exchanger is connected with water tank, fan is provided with by heat exchanger, water tank is connected with Electromagnetic water pump, and water outlet is connected with water inlet
It constitutes coolant liquid and recycles minor loop, controller is connect with electronically controlled proportional valve, and ECU and controller, temperature sensor, Electromagnetic water pump connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821455272.0U CN209100128U (en) | 2018-09-06 | 2018-09-06 | Combustion engine cylinder head adjustable cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821455272.0U CN209100128U (en) | 2018-09-06 | 2018-09-06 | Combustion engine cylinder head adjustable cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100128U true CN209100128U (en) | 2019-07-12 |
Family
ID=67152079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821455272.0U Expired - Fee Related CN209100128U (en) | 2018-09-06 | 2018-09-06 | Combustion engine cylinder head adjustable cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952921A (en) * | 2018-09-06 | 2018-12-07 | 吉林大学 | Combustion engine cylinder head adjustable cooling system and its application method |
| CN113833556A (en) * | 2020-06-24 | 2021-12-24 | 上海汽车集团股份有限公司 | Engine cooling system and method |
-
2018
- 2018-09-06 CN CN201821455272.0U patent/CN209100128U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952921A (en) * | 2018-09-06 | 2018-12-07 | 吉林大学 | Combustion engine cylinder head adjustable cooling system and its application method |
| CN113833556A (en) * | 2020-06-24 | 2021-12-24 | 上海汽车集团股份有限公司 | Engine cooling system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 Termination date: 20210906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |