CN1263582A - Cooling control device of internal combustion engine - Google Patents
Cooling control device of internal combustion engine Download PDFInfo
- Publication number
- CN1263582A CN1263582A CN99800478A CN99800478A CN1263582A CN 1263582 A CN1263582 A CN 1263582A CN 99800478 A CN99800478 A CN 99800478A CN 99800478 A CN99800478 A CN 99800478A CN 1263582 A CN1263582 A CN 1263582A
- Authority
- CN
- China
- Prior art keywords
- flow control
- combustion engine
- control valve
- valve
- internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/143—Controlling of coolant flow the coolant being liquid using restrictions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2023/00—Signal processing; Details thereof
- F01P2023/08—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/32—Deblocking of damaged thermostat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/34—Limping home
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The cooling controller can prevents the problem such as overheating of the internal combustion engine and, thus, can exhibit a secure fail safe function. A spring member (45) in a coil form is wound round the valve shaft (27) of the butterfly valve (26). Both ends thereof are communicated with a pair of pin members (27a and 27b) standing on the valve shaft (27) respectively. The pin member (27a) which is made of a material which fuses and breaks at a prescribed temperature is fused and broken, when the cooling water is heated up to a prescribed temperature. As a result, one end (45a) of the spring member (45) comes into contact with the communication pin (25a) projecting toward the valve shaft (25) due to the return force of the spring member (45), and due to the counteraction, the valve shaft (27) is caused to rotate in the direction of opening the valve. Consequently, it is possible to circulate the cooling water and, thus, the problem such as overheating of the engine can be prevented.
Description
Technical field
The present invention relates to be used to cool off the cooling controller of the internal-combustion engine of engine for automobile for example etc., particularly relate to the cooling water flow that is used for controlling after heating up by internal-combustion engine anti-barrier parts to the flow control mechanism of the flow of heat sink side.
Background technique
In the internal-combustion engine of uses such as automobile (below be called motor),, use the water-cooled chiller that has radiator usually as heat exchanger in order to cool off this internal-combustion engine.In the structure of this cooling unit, by in-engine water jacket the cooling water of intensification is circulated to heat sink side, the cooling water that is cooled off by the heat release of radiator generation is sent in the water jacket of motor once more.
Fig. 9 is its basic structure, is provided with known water jacket 11 in the motor E, has cooling water leading-out portion 12 and introduction part 13, simultaneously, is linked by cooling water path 14a, 14b, 15 between they and radiator R.Between described cooling water path 14a and cooling water path 15, be provided with tributary circuit 16 around radiator R.Between cooling water path 14a that forms between the inflow entrance 17 of the leading-out portion 12 of water jacket 11 and radiator R and 14b, dispose flow control valve 19.In addition, dispose the cooling-water temperature sensor 20 of the outlet water temperature of detection of engine E near the leading-out portion 12 of water jacket 11, the information that is obtained by this cooling-water temperature sensor 20 is provided for control unit (below be called " ECU ") 21.
Except that coolant water temperature, for example information such as engine revolution, accelerator open degree also offers this ECU21, generates the control signal by the flow of described flow control valve 19 control cooling waters.
According to this structure, by controlling the switching of described flow control valve 19, the may command cooling water is to the influx of radiator R side, thereby the temperature of cooling water is controlled at certain scope, and is final, can be with the most appropriate temperature-driven motor E.
Figure 10 is an example that fly valve 26 is used for described flow control valve 19.That is, in the housing 25 that is connected between cooling water path 14a and the 14b, the flat fly valve 26 of circle is rotatably supported on the housing 25 by valve shaft 27, for example worm gear 28a is installed at an end of this valve shaft 27.The worm screw 28b that embeds the live axle of stepping motor 29 is meshed with described worm gear 28a, constitutes reducing gear 28 by described worm gear 28a and worm screw 28b.Calculation by ECU21 offers stepping motor 29 with control signal, and stepping motor 29 is accepted this signal and rotated driving, opens and closes by described reducing gear 28 control fly valves 26.As a result, the cooling water inflow of being sent into radiator R side by motor E is controlled, and in other words, radiating efficiency is controlled, by this control with the most appropriate temperature-driven motor E.
But, in described this cooling controller, owing to be,, just can not regulate the aperture of fly valve 26 so for example produce under the situation of unexpected fault at ECU21 by the stepping motor 29 that drives the aperture that is used to control fly valve 26 from the control signal of ECU21.
Under the situation that for example take place when fly valve 26 leaves very greatly the period that this fault takes place, might make the cooling water supercooling, the fuel that produces motor E expends and the problem of exhaust, but can not develop into directly motor E is not brought damage.
But, particularly under the little situation of the valve degree of opening of fly valve 26, when described ECU21 produced fault, the amount of sending into the cooling water of radiator R side kept a spot of state, might cause that discovery period chien shih motor E is not overheated the operator, develop into fatal problem.
The present invention finishes in view of the above problems, and its purpose is, a kind of cooling controller is provided, and the fault by for example described ECU21 etc. can be produced and causes problems such as motor E is overheated to prevent trouble before it happens, and can bring into play anti-barrier function.
The general introduction of invention
The cooling controller of the internal-combustion engine of finishing of the present invention has flow control valve for achieving the above object, this flow control valve is disposed at the peripheral passage of the cooling water between internal-combustion engine and the heat exchanger, according to opening the flow of valve program control by the cooling water of internal-combustion engine inflow heat exchanger, this cooling controller comprises: control unit, send the motoring signal according to the operating condition of internal-combustion engine; Motor is driven with signal by the motoring from described control unit; Flow control valve utilizes the driving force control of described motor to open the valve degree; Electric control circuit when detecting described internal-combustion engine unusual, is forced described flow control valve is driven to valve opening position according to electrical signal.
Most preferred embodiment as this situation, described electric control circuit has following structure, disconnect by the connecting circuit that makes described control unit and motor unusually, and provide the drive signal that flow control valve is opened described motor by the electrical signal detection internal-combustion engine.
As another most preferred embodiment of this situation, also have second motor that drives described flow control valve, described electric control circuit unusual by by the electrical signal detection internal-combustion engine provides the drive signal that flow control valve is opened to described second motor.
Another most preferred embodiment as this situation, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, following formation, by answering the water temperature that is higher than set point of temperature of cooling water to realize the thermoswitch of switching manipulation at described electric control circuit usage and disconnecting the connecting circuit of described control unit and motor, can utilize the application of force of described time spring to open flow control valve according to the operation of described thermoswitch.And, also have as the embodiment again of the best and to make described flow control valve returning spring and can utilize electrical signal to control the clutch mechanism of the clutch of described motor and flow control valve to the valve opening position application of force, and, following formation, by answering the water temperature that is higher than set point of temperature of cooling water to realize the thermoswitch of switching manipulation at described electric control circuit usage and opening described clutch mechanism, can utilize the application of force of described time spring to open flow control valve according to the operation of described thermoswitch.
In the cooling controller that as above constitutes, have detecting under the unusual situation of internal-combustion engine and force described flow control valve, utilize the effect positive opening flow control valve of for example relay etc. of for example electric control to opening the electric control circuit that direction drives according to electrical signal.
Therefore, exothermal efficiency is increased owing to the amount that makes the cooling water that flows to heat exchanger increases, thus can not cause internal-combustion engine overheated, thus the anti-barrier of performance function.
The cooling controller of internal-combustion engine of the present invention has flow control valve, this flow control valve is disposed at the peripheral passage of the cooling water between internal-combustion engine and the heat exchanger, according to opening the flow of valve program control by the cooling water of internal-combustion engine inflow heat exchanger, this cooling controller comprises: control unit, send the motoring signal according to the operating condition of internal-combustion engine; Motor is driven with signal by the motoring from described control unit; Flow control valve utilizes the driving force control of described motor to open the valve degree; Force driving mechanism, be disposed in the described flow control valve, the abnormal temperature of induction cooling water and with described flow control valve to the valve opening position application of force.
Most preferred embodiment as this situation, described pressure driving mechanism by package in the spring members on the valve shaft of the switching of control flow rate control valve be disposed on the described valve shaft, be sticked in the spring members two end part respectively and keep the pair of pin parts of spring members to constitute, and, following formation, a certain pin parts in the described pin parts are removed the engaging of spring members by the abnormal temperature of induction cooling water thermoinduction material forms, and utilizes the involution power of the engaging rear spring parts of removing described spring members that flow control valve is opened.
Another most preferred embodiment as this situation, described pressure driving mechanism has thermocouple and cam part, wherein said thermocouple has the induction abnormal temperature of cooling water and mobile piston rod, described cam part makes the running transform of described piston rod for rotatablely moving, and according to rotatablely moving of described cam part generation flow control valve is opened.
And, preferably also have the driving force that stops described motor along with the piston rod of described thermocouple moves power blocking mechanism to the flow control valve conduction.
As another most preferred embodiment, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, described pressure driving mechanism comprise abnormal temperature with induction cooling water and the thermocouple of mobile piston rod and on the valve shaft of the switching of controlling described flow control valve along with moving of described piston rod the connected element of the driving force of the described motor of blocking, the blocking action by described connected element utilizes the application of force of described time spring to open flow control valve.
As a most preferred embodiment again, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, described pressure driving mechanism comprises: change hot dynamic component that the marmem of shape constitutes by the abnormal temperature of induction cooling water and on the valve shaft of the switching of controlling described flow control valve by the action of described hot dynamic component the connected element of the driving force of the described motor of blocking, the blocking action by described connected element utilizes the application of force of described time spring to open flow control valve.
In the cooling controller that as above constitutes, detecting under the unusual situation of internal-combustion engine the abnormal temperature of the cooling water in the inductive flow control valve and utilize and force driving mechanism promptly mechanically described flow control valve to be opened.
Therefore, same, owing to the amount that makes the cooling water that flows to heat exchanger increases exothermal efficiency is increased, thus can not cause internal-combustion engine overheated, thus the anti-barrier of performance function.
Brief description of drawings is as follows:
Fig. 1 is the embodiment's 1 of a cooling controller of the present invention structural drawing;
Fig. 2 is the embodiment's 2 of a cooling controller of the present invention structural drawing;
Fig. 3 is the embodiment's 3 of a cooling controller of the present invention structural drawing;
Fig. 4 is the embodiment's 4 of a cooling controller of the present invention structural drawing;
Fig. 5 is the embodiment's 5 of a cooling controller of the present invention structural drawing;
Fig. 6 is the embodiment's 6 of a cooling controller of the present invention structural drawing;
Fig. 7 is the embodiment's 7 of a cooling controller of the present invention structural drawing;
Fig. 8 is the embodiment's 8 of a cooling controller of the present invention structural drawing;
Fig. 9 is the structural drawing of one of the cooling water peripheral passage of internal-combustion engine and allocation position of cooling water flow control valve example;
Figure 10 is the structural drawing of one of existing fly valve and driving mechanism thereof example.
The optimised form that carries out an invention
Below, with reference to the most preferred embodiment of the cooling controller of description of drawings internal-combustion engine of the present invention.In addition, constituting the loading position that illustrates in the allocation position of control unit (ECU) 21 of this cooling controller and the described background technique is same position, again, in the employed symbol of following explanation, the part suitable with described Fig. 9 and part shown in Figure 10 used prosign and omitted its explanation.
Fig. 1 is expression embodiment's 1 figure, on the valve shaft 27 of the flow control valve 19 of present embodiment first umbrella gear 31 is installed.Dispose the motor 29 of built-in reducing gear (not shown) on the sidewall of housing 25, this structure makes the driving force of being slowed down by this reducing gear be communicated to second umbrella gear 32.
As shown in the figure, second umbrella gear 32 is meshed with first umbrella gear 31, and therefore, it opens the valve degree to fly valve 26 by motor 29 controls.
On the other hand, have and detecting under the unusual situation of motor E, force the electric control circuit that described fly valve 26 is driven to valve opening position according to electrical signal.Promptly, on the water temperature meter of the instrument panel 33 that is disposed at bridge, be provided with bridge circuit (not shown), this bridge circuit includes the drive coil of water temperature meter and the thermistor of perception cooling water temperature etc. on one side, utilization is followed the rising of cooling water temperature and the non-equilibrium state of the described bridge circuit that causes, and the pointer of water temperature meter is driven to high temperature side.
That is, can extract cooling water information by electricity, for example arrive under the situation of red area, can regard as primary fault has taken place at ECU21 at the pointer of water temperature meter from one side of described bridge circuit.
Be connected with the level sensitive circuit (for example known threshold cirtuit) 34 that detects the telecommunications breath that obtains by one side of described bridge circuit this moment, this level sensitive circuit 34 its more than threshold voltage (or following) Out let 34a is switched to reference potential point (ground connection=automotive body).
The Out let 34a of described level sensitive circuit 34 by relay 35 be connected battery (+12V) on, therefore make the coil 35a energising that is disposed at relay 35, make its bipolar two-way contact 35b switch to battery (+12V) side from the ECU21 side.Therefore, motor 29 is driven by the voltage that obtains from battery and rotates the mandatory fly valve 26 of opening.
Like this, the abnormal ascending of realization inhibition coolant water temperature prevents the overheated anti-barrier function of motor E.
In addition, in described structure, when coolant water temperature reduces once more, the contact 35b of relay 35 is switched to the ECU21 side once more, but be preferably in described level sensitive circuit 34 built-in for example bistable multivibrators, operated under the situation once at level sensitive circuit 34, made it to continue above-mentioned state by self containing function.At this moment, though motor 29 utilizes battery always to continue the electric current of mobile valve opening position, but the timer contact that the operation that is preferably in configuration using relay between described relay 35 and the motor 29 drives is at the electric current that leads to motor 29 through cut-out after the stipulated time.
Then, Fig. 2 is expression embodiment's 2 figure, in this embodiment, second motor 38 of built-in reducing gear is installed on the sidewall of housing 25.The 3rd umbrella gear 39 and 31 engagements of first umbrella gear by these second motor, 38 rotary driving.
Detect motor E unusually, under the situation of the excessive rising of for example coolant water temperature etc., level sensitive circuit 34 is set in the reference potential point with its Out let 35a, makes relay 35 actions.
Relay used herein 35 makes normal opened contact that contact closes and makes the two point relay of the break contact that contact opens by action for having by action.That is, as shown in Figure 2, normal opened contact 35b is connected between the battery and second motor 38, and break contact 35c is connected between the ECU21 and first motor 29.And normal opened contact 35b is closed in the action of the relay 35 that excessive rising by coolant water temperature etc. causes, is provided the electric current that fly valve is opened with respect to second motor 38 by battery by normal opened contact 35b thus.
Meanwhile, interdicted with respect to the motor drive signal from ECU21 of first motor 29.Therefore, utilize the driving force of second motor 38 that resists with the driving force of first motor 29 that drives by control signal from ECU21, fly valve 26 being forced to property are opened, thus realize to suppress coolant water temperature abnormal ascending, prevent the anti-barrier function that motor E is overheated.
In addition, in this case, owing to forcibly make the rotation of first motor 29, so locate the worm and gear device that built-in reducing gear preferably need not be shown in Figure 10, and for example use the reducing gear that constitutes by spur wheel by first motor, 29 built-in reducing gears.
In addition, in example shown in Figure 2, always flow through the electric current of valve opening position continuously to second motor 38 though utilize the action of relay 35 by battery, but, the timer contact that also is preferably in the action of configuration using relay 35 between described normal opened contact 35b and the motor 38 and works cuts off the energising to motor 38 after the process stipulated time.
Fig. 3 is expression embodiment's 3 figure, in this embodiment, also has and makes fly valve 26 return spring 41 to the valve opening position application of force.And, on described cooling water path 14a, disposing thermoswitch 42, this thermoswitch 42 is responded to the above water temperature of regulation of cooling waters and is realized switch motion.In this thermoswitch 42, keep for example bimetal (not shown), utilize this bimetallic effect, reach regulation in the temperature of cooling water and finish the action of opening circuit when above.
Thermoswitch 42 is located between ECU21 and the motor 29, therefore, when cooling water reaches the above water temperature of regulation, described thermistor 42 actions, the connecting circuit of cut-out ECU21 and motor 29.So utilize the application of force of described time spring 41, fly valve 26 is forced to open.
Like this, carry out the overheated anti-barrier function that the abnormal ascending that suppresses coolant water temperature prevents motor E.
In addition, not only described thermoswitch 42 is installed near the cooling water path 14a the fly valve 26 as shown in the figure, but also directly it is installed near the coolant outlet of motor E, detected bodies such as cylinder seat, cylinder head, can carry out the operation of more certain (directly) thus.
Fig. 4 is expression embodiment's 4 figure, in the present embodiment, has following characteristics,, also disposes the clutch mechanism that can control its clutch by electrical signal in the drive electric motor 29 that is used for fly valve 26 to the part of the transfer mechanism between the fly valve 26 that is.
That is, Fig. 4 (b) is the figure of the internal mechanism shown in the symbol 29 that schematically shows among Fig. 4 (a).Shown in Fig. 4 (b), the first clutch wheel 29B1 that constitutes clutch mechanism 29B is installed on the live axle 29A1 of motor 29A.Here, live axle 29A1 forms the polygon prism shape, and on the other hand, the first clutch wheel 29B1 side is formed with polygonal hole to surround described live axle 29A1.Like this, constitute the first clutch wheel 29B1 and be connected the sense of rotation of live axle 29A1 and axial structure slidably.
Be formed with the slot part 29B2 of ring-type in all sides of the described first clutch wheel 29B1, be embedded with the front end of the contact 29B4 of electromagnetic plunger 29B3 in this slot part 29B2 trip.At plunger 29B3 disc spring 29B5 is installed, utilizes the dilating effect of this disc spring 29B5, under the cold common state of plunger 29B3, as shown in the figure, the first clutch wheel 29B1 is drawn in motor 29A side.
In addition, the relative second clutch wheel 29B6 that disposes with the described first clutch wheel 29B1, this second clutch wheel 29B6 are packed on the input side running shaft 29C1 that constitutes reducing gear 29C.
Described reducing gear 29C is made of small gear and spur wheel, on the output shaft 29C2 that is slowed down by them first umbrella gear 32 shown in Fig. 4 (a) is installed.
On the other hand, shown in Fig. 4 (a), an end of thermoswitch 42 is connected on the battery, and the other end is connected on the described plunger 29B3, is connected simultaneously on the relay 35.
Therefore, in structure shown in Figure 4, reach the above water temperature of regulation and make under the situation of thermoswitch 42 actions at cooling water, the energising of relay 35 is disconnected, contact 35b opens, and cuts off the control signal of ECU21 supply motor 29A.Meanwhile, utilize the energising of the action cut-out of thermoswitch 42, so clutch mechanism 29B opens to electromagnetic plunger 29B3.
Therefore, utilize application of force fly valve 26 the being forced to property of described time spring 41 to open.Thereby carry out the overheated anti-barrier function that the abnormal ascending that suppresses coolant water temperature prevents motor E.
Fig. 5 is expression embodiment's 5 figure.In this embodiment 5, dispose the spring members 45 of plate-like on the valve shaft 27 in mode around valve shaft 27.And its two ends are respectively by upright pair of pin parts 27a, the 27b engaging of being located on the valve shaft 27.In addition, dispose engagement pin 25a on described housing 25, the end 45a that this engagement pin 25a crosses over described spring members 45 gives prominence to valve shaft 27.
Here, upright be located at valve shaft 27 near the pin parts 27a of fly valve 26 by Thermal Cutoffs or by because of stipulating that the material that above temperature fuses constitutes.Therefore, when cooling water rose to the above temperature of regulation, its heat just passed through valve shaft 27 conductions in pin parts 27a, and pin parts 27a is fused.
Fig. 5 (b) shows the state of this moment, utilizes the fusing of the pin parts 27a shown in the x mark, and an end 45a of spring members 45 touches with the described engagement pin 25a that gives prominence to valve shaft 27 by its involution power.
Like this, be disposed at respect to fly valve 26 and bear the reaction force that the involution power of spring members 45 is produced, make valve shaft 27 to the direction rotation that fly valve 26 is opened than the pin parts 27b of distant positions.In addition, at this moment, also force to make described motor 29 rotations by gear 31,32.Utilize this effect, carry out the overheated anti-barrier function that the abnormal ascending that suppresses coolant water temperature prevents motor E.
Fig. 6 is expression embodiment's 6 figure, in the present embodiment, be provided with abnormal temperature and the thermocouple of mobile piston rod and be the cam part that rotatablely moves with the running transform of piston rod with induction cooling water, according to rotatablely moving of causing of this cam part fly valve is opened, this point is its feature.
Also have prevention and be communicated to the power blocking mechanism of fly valve from the driving force of described motor along with moving of piston rod.
In this embodiment 6, as shown in Figure 6, valve shaft is made of with the valve shaft 27B that first umbrella gear 31 that is driven by motor 29 is installed the valve shaft 27A that is combined on the fly valve 26, and, dispose thermocouple 47 in the valve shaft 27A side that is incorporated on the fly valve 26.
Enclose for example wax W that induction heat is arranged and expand at this thermocouple 47, dispose the expansion that utilizes this wax W to move axially, promptly to the side-prominent piston rod 47a of the valve shaft 27B that first umbrella gear 31 is installed.Fig. 6 (b) expression induction heat and state after making piston rod 47a outstanding.
Fig. 6 (c) with about the state that separates show the thermocouple 47 except that described piston rod and the shape of the end of the valve shaft 27B side that combines with it.Shown in Fig. 6 (c), thermocouple 47 one are installed in the other end of the valve shaft 27A that is incorporated into described fly valve 26, are formed with slot part 47b on the part of its all side vertically.On the other hand, in the other end of the valve shaft 27B that first umbrella gear 31 is installed cylindrical part 27B1 is installed, it is outstanding and embed engagement pin 27B2 in the described slot part 47b to plant oriented inner circumferential surface in thermocouple 47 sides of this cylindrical part 27B1.
Therefore, under the state shown in Fig. 6 (a) or Fig. 6 (b), utilize described slot part 47b and embed the effect of engagement pin 27B2 wherein, be formed on that sense of rotation links and in axial structure slidably.
On the other hand, 25 side direction cylindrical part 27B1 have planted locating stud 25b at the housing relative with cylindrical part 27B1, assemble in the mode of this locating stud 25b being inserted the recess 27B4 that is formed at cylindrical part 27B1.
First umbrella gear, 31 sides of the cylindrical part 27B1 of described recess 27B4 and the angle that circumferentially roughly forms 90 degree, and fly valve 26 sides form the degree that described locating stud 25b is inserted with the gap of a little.That is, recess 27B4 forms the shape as right-angled triangle under situation about seeing with the direction of the outer circumferential face quadrature of cylindrical part 27B1.The part on one side that is equivalent to this right-angled triangle is as camming surface 27B3.
Tip side at described valve shaft 27B disposes thrust spring 48, utilizes this thrust spring 48 to make valve shaft 27B to the valve shaft 27A side application of force.
In above structure, be at cooling water under the situation of temperature range of regulation, shown in Fig. 6 (a), the piston rod 47a of thermocouple 47 is outstanding.Therefore, valve shaft 27B utilizes the effect of thrust spring 48 to press to fly valve 26 thrusters.Under this state, plant in the described locating stud 25b of housing 25 and be located opposite from the part that among the recess 27B4 that is formed at cylindrical part 27B1 and circumferentially has an angle of 90 degrees degree.
Like this, under this state, the angles of utilizing the driving of motor 29 can roughly be 90 degree make fly valve 26 on-off actions, guarantee the normal temperature control of cooling water.
On the other hand, when cooling water rose to the above temperature of regulation, its heat heated described thermocouple 47 by valve shaft 27A.As mentioned above, enclose the wax that has as thermal expansion body at thermocouple 47, therefore, the outstanding state that forms Fig. 6 (b) of piston rod 47a.Be that valve shaft 27B is pushed and retreats by piston rod 47a.
Under this state, plant in the described locating stud 25b of housing 25 and relatively move along the formed camming surface 27B3 of the recess 27B4 of cylindrical part 27B1, valve shaft 27B is limited to have a certain degree.That is, fly valve 26 is locked into out the valve state.
At this moment, along with retreating of valve shaft 27B, first umbrella gear 31 that is installed on the valve shaft 27B is acted on by power blocking mechanism, breaks away from from the engagement with second umbrella gear that is installed on motor 29 sides, stops the driving force of motor 29 to be transmitted to fly valve 26.Therefore, by this effect, carry out the overheated function that the abnormal ascending that suppresses coolant water temperature prevents motor E.
Fig. 7 is expression embodiment's 7 figure, in this embodiment, on valve shaft along with the switching of the mobile control fly valve 26 of the piston rod 47a of thermocouple 47, be provided with the parts of the driving force of blocking motor 29, under the situation of the binding of removing these parts, by returning spring fly valve is opened, this point is its feature.
That is, in Fig. 7, dispose guard ring 51 on thermocouple 47, this guard ring 51 surrounds the piston rod 47a that is embedded in thermocouple 47.Between this guard ring 51 and valve shaft 27B, dispose disc spring 52, utilize this disc spring 52 that guard ring 51 thermoelectric couple 47 lateral deviations are leaned on.One is equipped with a pair of bar 51a on the guard ring 51, and a pair of bar 51a can slide along the axis hole that is disposed at valve shaft 27B.
On the other hand, valve shaft 27A with described a pair of bar 51a opposing end faces on be equipped with the card complex hole 27A1 that engages with a pair of bar 51a.
Showing that cooling water is among Fig. 7 (a) of state of temperature range of regulation, the piston rod 47a of thermocouple 47 is in the state of burying underground, therefore, guard ring 51 is also pushed by spring 52, and a pair of bar 51a that constitutes connected element is sticked in valve shaft 27A and goes up among the described card complex hole 27A1 that forms.
Therefore, under this state, valve shaft 27A and 27B are by constituting a pair of bar 51a one rotation of connected element.Like this, under this state, utilize the driving of motor 29 can make fly valve 26 on-off actions, guarantee the normal temperature control of cooling water.
On the other hand, when cooling water rose to the above temperature of regulation, then its heat was by the described thermocouple 47 of valve shaft 27A transmission the heating.As mentioned above, on thermocouple 47, enclose the wax have as thermal expansion body, so piston rod 47a will give prominence to and form the state of Fig. 7 (b).That is, a pair of bar 51a that is mounted thereon of guard ring 51 and one shrinks to valve shaft 27B side shifting spring 52.
Therefore, the engaging of a pair of bar 51a and the card complex hole 27A1 that is formed at valve shaft 27A is thrown off, and both bindings are disengaged.Therefore, fly valve 26 utilizes back the effect of spring 41 and opens, and carries out the overheated anti-barrier function that prevents motor E.
Fig. 8 is expression embodiment's 8 figure.This embodiment 8 is characterised in that, used the abnormal temperature of induction cooling water and make the thermal induction element of change in shape, for example form the marmem of disc spring shape and the hot dynamic component that constitutes by bimetal, utilize the action of hot dynamic component, the driving force of the described motor of blocking utilizes back spring that fly valve is opened on the valve shaft of the switching of controlling described flow control valve.
That is, as shown in Figure 8, the left side of valve shaft 27 forms prism 27d, and first umbrella gear 31 can slide on axle and in the sense of rotation combination along this prism 27d.And spring 56, the first umbrella gear 31 that dispose plate-like around axle between the substantial middle portion of valve shaft 27 and described first umbrella gear 31 are engaged on second umbrella gear 32 usually.
On the other hand, between the end of first umbrella gear 31 and valve shaft 27, dispose the hot dynamic component 55 of the marmem formation of coiled type formation around axle.
In this structure, when cooling water rose to the above temperature of regulation, its heat transmitted the hot dynamic component 55 that marmem is constituted by valve shaft 27 and heats.Like this, hot dynamic component 55 extends vertically, make first umbrella gear, 31 burden rounds spring 56 and to axial release.That is, make first umbrella gear 31 shown in Fig. 8 imaginary line and move.By this effect, the engagement releasing of second umbrella gear 32 of first umbrella gear 31 and motor side.Therefore, fly valve 26 utilizes back the effect of spring 41 to be opened, and carries out the overheated anti-barrier function that prevents motor E.
In this case, the hot dynamic component that uses bimetal to constitute replaces the hot dynamic component 55 that is made of marmem as previously mentioned and also can obtain identical action effect.
In addition, in each embodiment of above explanation, according to fly valve being opened to the induction of electrical anomaly state or the abnormal ascending of coolant water temperature, but be not limited to fly valve, employing can utilize other flow control valves of the Spin Control cooling water flow of valve shaft also can obtain same action effect.
More than be illustrated at the embodiment who is applied to engine for automobile, but the present invention is not limited to this particular case, the internal-combustion engine that is applied to other can obtain same action effect.
By above explanation as can be known, cooling controller according to internal-combustion engine of the present invention, on common function circuit, added the structure of the flow control valve of faradic abnormal state positive opening cooling water again, so, even under the situation that the motor of the switching of control flow rate control valve can not be driven, also can problem prevent trouble before it happens with internal-combustion engine is overheated etc., bring into play certain anti-barrier function.
Mandatory pressure driving mechanism and the flow control valve of opening the flow control valve of cooling water is wholely set owing to make according to the abnormal ascending of coolant water temperature, so, even for example the motor of the switching of control flow rate control valve can not be driven because of fault of ECU etc., similarly also can problem prevent trouble before it happens with internal-combustion engine is overheated etc., bring into play certain anti-barrier function.And, light weight, small-sized and flow control valve that outward appearance is good can be provided.
Claims (12)
1, a kind of cooling controller of internal-combustion engine, the cooling controller of this internal-combustion engine has flow control valve, this flow control valve is disposed on the peripheral passage of the cooling water between internal-combustion engine and the heat exchanger, open the flow of valve program control according to it by the cooling water of internal-combustion engine inflow heat exchanger, it is characterized in that, the cooling controller of this internal-combustion engine comprises: control unit, send the motoring signal according to the operating condition of internal-combustion engine; Motor is driven with signal by the motoring from described control unit; Flow control valve utilizes the driving force control of described motor to open the valve degree; Electric control circuit when detecting described internal-combustion engine unusual, is forced described flow control valve is driven to valve opening position according to electrical signal.
2, the cooling controller of internal-combustion engine as claimed in claim 1, it is characterized in that, the structure of described electric control circuit is: disconnect by the connecting circuit that makes described control unit and motor unusually by the electrical signal detection internal-combustion engine, provide the drive signal that flow control valve is opened to described motor simultaneously.
3, the cooling controller of internal-combustion engine as claimed in claim 1, it is characterized in that, also have second motor that drives described flow control valve, the structure of described electric control circuit is by providing the drive signal that flow control valve is opened by the unusual of electrical signal detection internal-combustion engine to described second motor.
4, the cooling controller of internal-combustion engine as claimed in claim 1, it is characterized in that, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, following formation, by answering the water temperature that is higher than set point of temperature of cooling water to realize the thermoswitch of switching manipulation at described electric control circuit usage and disconnecting the connecting circuit of described control unit and motor, can utilize the application of force of described time spring to open flow control valve according to the operation of described thermoswitch.
5, the cooling controller of internal-combustion engine as claimed in claim 1, it is characterized in that, also have and make described flow control valve returning spring and can utilize electrical signal to control the clutch mechanism of the clutch of described motor and flow control valve to the valve opening position application of force, and, following formation:, utilize the application of force of described time spring can open flow control valve by answering the water temperature that is higher than set point of temperature of cooling water to realize the thermoswitch of switching manipulation at described electric control circuit usage and opening described clutch mechanism according to the operation of described thermoswitch.
6, a kind of cooling controller of internal-combustion engine, it has flow control valve, this flow control valve is disposed at the peripheral passage of the cooling water between internal-combustion engine and the heat exchanger, open the flow of valve program control according to it by the cooling water of internal-combustion engine inflow heat exchanger, it is characterized in that, this cooling controller comprises: control unit, send the motoring signal according to the operating condition of internal-combustion engine; Motor is driven with signal by the motoring from described control unit; Flow control valve utilizes the driving force control of described motor to open the valve degree; Force driving mechanism, be disposed in the described flow control valve, the abnormal temperature of induction cooling water and with described flow control valve to the valve opening position application of force.
7, the cooling controller of internal-combustion engine as claimed in claim 6, it is characterized in that, described pressure driving mechanism by package in the spring members on the valve shaft of the switching of control flow rate control valve and being disposed on the described valve shaft, be sticked in the spring members two end part respectively and keep the pair of pin parts of spring members to constitute, and, following formation, a certain pin parts in the described pin parts are removed the engaging of spring members by the abnormal temperature of induction cooling water thermoinduction material forms, and utilizes the involution power of the engaging rear spring parts of removing described spring members that flow control valve is opened.
8, the cooling controller of internal-combustion engine as claimed in claim 6, it is characterized in that, described pressure driving mechanism has thermocouple and cam part, wherein said thermocouple has the induction abnormal temperature of cooling water and mobile piston rod, described cam part makes the running transform of described piston rod for rotatablely moving, and according to rotatablely moving of described cam part generation flow control valve is opened.
9, the cooling controller of internal-combustion engine as claimed in claim 6 is characterized in that, also has the driving force that stops described motor along with the piston rod of described thermocouple moves power blocking mechanism to the flow control valve conduction.
10, the cooling controller of internal-combustion engine as claimed in claim 6, it is characterized in that, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, described pressure driving mechanism comprises: have the abnormal temperature of induction cooling water and the thermocouple of mobile piston rod and on the valve shaft of the switching of controlling described flow control valve along with moving of described piston rod the connected element of the driving force of the described motor of blocking, the blocking action by described connected element utilizes the application of force of described time spring to open flow control valve.
11, the cooling controller of internal-combustion engine as claimed in claim 6, it is characterized in that, also have and make described flow control valve to the spring that returns of opening the direction application of force, and, described pressure driving mechanism comprises: changed the connected element of the driving force of the described motor of blocking on the valve shaft of hot dynamic component that the thermal induction element of shape constitutes and the switching of controlling described flow control valve in the action that utilizes described hot dynamic component by the abnormal temperature of induction cooling water, the blocking action by described connected element utilizes the application of force of described time spring to open flow control valve.
12, as the cooling controller of each described internal-combustion engine of claim 1 or 6, it is characterized in that described flow control valve is a fly valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10111538A JPH11294163A (en) | 1998-04-07 | 1998-04-07 | Cooling control device for internal combustion engine |
| JP111538/1998 | 1998-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1263582A true CN1263582A (en) | 2000-08-16 |
Family
ID=14563909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99800478A Pending CN1263582A (en) | 1998-04-07 | 1999-04-06 | Cooling control device of internal combustion engine |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1035307A4 (en) |
| JP (1) | JPH11294163A (en) |
| KR (1) | KR20010013250A (en) |
| CN (1) | CN1263582A (en) |
| CA (1) | CA2289018A1 (en) |
| TW (1) | TW417006B (en) |
| WO (1) | WO1999051863A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283170B (en) * | 2005-10-05 | 2010-08-18 | 通用电气公司 | Integrated engine control and cooling system for diesel engines |
| CN101302958B (en) * | 2007-05-07 | 2011-02-09 | 日产自动车株式会社 | Cooling device of internal combustion engine |
| CN105393030A (en) * | 2013-06-25 | 2016-03-09 | 麦格纳动力系有限两合公司 | Valve with fail-safe mechanism |
| CN105531519A (en) * | 2014-07-31 | 2016-04-27 | 认知控管株式会社 | Fail safety control valve of cooling water |
| CN106015704A (en) * | 2016-07-29 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Electromagnetic shutoff valve of engine |
| CN106930812A (en) * | 2015-10-01 | 2017-07-07 | 丰田自动车株式会社 | The control device of internal combustion engine and the control method of internal combustion engine |
| CN109176399A (en) * | 2018-11-14 | 2019-01-11 | 国网上海市电力公司 | A kind of 9E combustion engine movable vane piece safety plug installation tool and its installation method |
| CN110094255A (en) * | 2019-05-28 | 2019-08-06 | 曲阜天博汽车零部件制造有限公司 | A kind of engine system, thermosistor and thermosistor error prevention device |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243778A1 (en) * | 2002-09-20 | 2004-03-25 | Siemens Ag | Final control device for rotary slide valve, e.g. for regulating coolant flow, has reversing drive, and spring effective between first end position and intermediate position |
| TWI396634B (en) * | 2007-04-30 | 2013-05-21 | Kwang Yang Motor Co | Vehicle cooling system |
| WO2011037287A1 (en) * | 2009-09-25 | 2011-03-31 | 한국산업기술대학교산학협력단 | Fail safety actuator |
| US8573163B2 (en) * | 2009-10-05 | 2013-11-05 | Toyota Jidosha Kabushiki Kaisha | Cooling device for vehicle |
| DE102012208652B3 (en) * | 2012-05-23 | 2013-09-19 | Magna Powertrain Ag & Co. Kg | Valve |
| DE102014204485B3 (en) * | 2014-03-11 | 2015-02-12 | Magna Powertrain Ag & Co. Kg | Valve with fail-safe mechanism |
| US9927041B2 (en) * | 2014-08-29 | 2018-03-27 | A. Raymond Et Cie | Fluid control valve utilizing shape memory alloy driving spring |
| DE102016114492A1 (en) | 2016-08-04 | 2018-02-08 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Knob with mitbewegbarem energy storage |
| EP3636323A1 (en) * | 2018-10-11 | 2020-04-15 | Siemens Schweiz AG | Blocking device for a fire damper, blocking device system and method for blocking a drive device |
| DE102020112548A1 (en) * | 2020-05-08 | 2021-11-11 | Auma Riester Gmbh & Co. Kg | Fail-safe drive and actuator with a fail-safe drive |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4453668A (en) * | 1982-11-10 | 1984-06-12 | Caltherm Corporation | Fail-safe thermostatic valve |
| US5111775A (en) * | 1989-12-06 | 1992-05-12 | Mitsubishi Denki K.K. | Cooling water temperature controlling apparatus |
| JPH03258916A (en) * | 1990-03-07 | 1991-11-19 | Mitsubishi Electric Corp | Cooling water temperature control device for internal combustion engine |
| JPH0491314A (en) * | 1990-08-06 | 1992-03-24 | Calsonic Corp | Cooling controller of water cooling engine |
| FR2668853B1 (en) * | 1990-11-05 | 1996-03-08 | Vernet Procedes | SAFETY DEVICE FOR THERMOSTAT ACTUATED BY A DILATABLE WAX CAPSULE. |
| JPH0527463U (en) * | 1991-09-19 | 1993-04-09 | 日本サーモスタツト株式会社 | Thermostat with safety mechanism |
| FR2703730B1 (en) * | 1993-04-05 | 1995-06-23 | Vernet Sa | Improvements to liquid cooling circuits for internal combustion engines. |
| DE4401620A1 (en) * | 1994-01-20 | 1995-07-27 | Bayerische Motoren Werke Ag | Cooling system for an internal combustion engine of a motor vehicle with a thermostatic valve that contains an electrically heated expansion element |
-
1998
- 1998-04-07 JP JP10111538A patent/JPH11294163A/en active Pending
-
1999
- 1999-03-16 TW TW088104027A patent/TW417006B/en active
- 1999-04-06 CN CN99800478A patent/CN1263582A/en active Pending
- 1999-04-06 EP EP99912118A patent/EP1035307A4/en not_active Withdrawn
- 1999-04-06 KR KR19997011241A patent/KR20010013250A/en not_active Application Discontinuation
- 1999-04-06 WO PCT/JP1999/001814 patent/WO1999051863A1/en not_active Application Discontinuation
- 1999-04-06 CA CA002289018A patent/CA2289018A1/en not_active Abandoned
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283170B (en) * | 2005-10-05 | 2010-08-18 | 通用电气公司 | Integrated engine control and cooling system for diesel engines |
| CN101302958B (en) * | 2007-05-07 | 2011-02-09 | 日产自动车株式会社 | Cooling device of internal combustion engine |
| CN105393030A (en) * | 2013-06-25 | 2016-03-09 | 麦格纳动力系有限两合公司 | Valve with fail-safe mechanism |
| US9879794B2 (en) | 2013-06-25 | 2018-01-30 | Magna powertrain gmbh & co kg | Valve with fail-safe mechanism |
| CN105531519A (en) * | 2014-07-31 | 2016-04-27 | 认知控管株式会社 | Fail safety control valve of cooling water |
| CN105531519B (en) * | 2014-07-31 | 2017-12-29 | 认知控管株式会社 | Fail-Safe cooling agent control valve |
| CN106930812A (en) * | 2015-10-01 | 2017-07-07 | 丰田自动车株式会社 | The control device of internal combustion engine and the control method of internal combustion engine |
| CN106930812B (en) * | 2015-10-01 | 2019-06-25 | 丰田自动车株式会社 | The control device of internal combustion engine and the control method of internal combustion engine |
| CN106015704A (en) * | 2016-07-29 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Electromagnetic shutoff valve of engine |
| CN106015704B (en) * | 2016-07-29 | 2018-06-19 | 中煤科工集团西安研究院有限公司 | A kind of engine electromagnet shut-off valve |
| CN109176399A (en) * | 2018-11-14 | 2019-01-11 | 国网上海市电力公司 | A kind of 9E combustion engine movable vane piece safety plug installation tool and its installation method |
| CN110094255A (en) * | 2019-05-28 | 2019-08-06 | 曲阜天博汽车零部件制造有限公司 | A kind of engine system, thermosistor and thermosistor error prevention device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010013250A (en) | 2001-02-26 |
| TW417006B (en) | 2001-01-01 |
| JPH11294163A (en) | 1999-10-26 |
| WO1999051863A1 (en) | 1999-10-14 |
| EP1035307A1 (en) | 2000-09-13 |
| CA2289018A1 (en) | 1999-10-14 |
| EP1035307A4 (en) | 2007-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1263582A (en) | Cooling control device of internal combustion engine | |
| CN103291435B (en) | Cooling water control valve gear | |
| US8063519B2 (en) | Cooling system for a vehicle drive assembly | |
| JP3847876B2 (en) | Internal combustion engine cooling system | |
| JPH0444084B2 (en) | ||
| WO2013042588A1 (en) | Coolant control valve apparatus | |
| JP6013022B2 (en) | Cooling control device for internal combustion engine and cooling control method therefor | |
| WO2014049344A2 (en) | Thermal store | |
| JP6426658B2 (en) | Heat storage and heat radiation system of vehicle | |
| EP1452706A1 (en) | Thermostat | |
| KR20180009745A (en) | Internal combustion engines and automobiles | |
| US20020073942A1 (en) | Integral water pump/electronic engine temperature control valve | |
| JP4321505B2 (en) | Hybrid vehicle cooling system | |
| JP4396351B2 (en) | Thermoelectric generator | |
| CN110439664B (en) | Cooling system of automobile engine | |
| JP2000289446A (en) | Magnet type fan clutch/heater device | |
| CN103270353B (en) | Valve for controlling volume flows | |
| JP5912821B2 (en) | Heat recovery system | |
| CN109973198A (en) | A kind of high security motor thermosistor and its working method | |
| JP2008106613A (en) | Warming-up device for drive source | |
| JP3820977B2 (en) | Hybrid system heat storage device | |
| JP6361306B2 (en) | Cooling device for internal combustion engine | |
| KR100405789B1 (en) | Heater performance elevation device | |
| KR102518738B1 (en) | Method for controlling valve of integrated theraml management system for hybrid vehicle | |
| JP7489778B2 (en) | Engine Cooling System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |