JP2000199429A - Heater which heats heating medium fluid by fluid friction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To configure on/off control means of a heater which heats a heating medium fluid by fluid friction so as to, as a viscous fluid in a heating chamber gets hot, control movement of the viscous fluid, thereby minimizing heat production of the heater and preventing high temperature degradation of the viscous fluid. SOLUTION: When a drive shaft 1 is driven by an engine via a pulley 18, a rotor 4 rotates in a heating chamber 3, and a viscous fluid such as silicon oil sealed in the heating chamber 3 is subjected to a shear action, thereby producing heat. By the heat, circulation water in a water jacket 17 is heated, and the heated circulation water is used for heating a vehicle. At this moment, a vent 5-1 is opened due to deformation of an inner bimetal 9. However, when the viscous fluid is overheated and the inner bimetal 9 is deformed in the opposite direction, the vent 5-1 is closed. As a result, a viscous fluid in a storing chamber 6 is prevented from flowing into the heating chamber 3 and the amount of a viscous fluid in the heating chamber 3 is decreased, thus restricting heat production of a viscous fluid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the improvement of startability of various vehicle engines such as automobiles using a diesel engine or a gasoline engine as a power source, especially in cold or extreme cold, and various vehicles and ships including electric vehicles. Used as auxiliary heating means for heat medium fluid such as engine cooling water used for cabin heating, etc., and for preheating or rapid rise of engine cooling water for engine driven generators, welding machines, compressors, construction machinery, etc. The present invention relates to a fluid heating heater for a heat medium by fluid friction used for warming (reducing the warm-up time).

[0002]

2. Description of the Related Art As an auxiliary heating heat source for a vehicle such as an automobile used for heating an engine cooling water at the time of starting in a cold region or the like, a fluid heating heater for a heat medium by fluid friction is known (Japanese Patent Laid-Open No. Hei 2 (1994) -210). JP-A-246823, JP-A-4-11716, JP-A-9-254637,
JP-A-9-66729, JP-A-9-323530
Gazette). Fluid heating heater for heat medium by fluid friction generates viscous fluid such as silicone oil by shearing and exchanges heat with circulating water circulating in the water jacket to use it as a heating heat source. It is called a "heater." For example, a heat generating chamber is formed inside the housing, and a water jacket is formed outside the heat generating chamber. A drive shaft is rotatably supported on the housing via a bearing device (ball bearing). A rotor rotatable in the heating chamber is fixed, a viscous fluid such as silicone oil is sealed in a gap between the wall of the heating chamber and the rotor, and circulating water is taken in from a water inlet port in the water jacket, and a water outlet port is provided. From the outside to the outside heating circuit.

In a fluid heating heater for a heat medium based on fluid friction incorporated in a heating device of a vehicle, when a driving shaft is driven by an engine, a rotor rotates in a heating chamber, and viscous fluid is generated on a wall surface of the heating chamber. Heat is generated by shearing in the gap between the rotor and the outer surface of the rotor, and this heat is exchanged with the circulating water in the water jacket, and the heated circulating water is supplied to the vehicle for heating the engine such as engine cooling water in the heating circuit. .

[0004] Such a fluid heater for a heat medium based on fluid friction can realize a reduction in size and cost with a simple structure, and secure high reliability and safety by a non-contact type mechanism without wear. It has features such as being able to.

[0005]

However, the conventional fluid heater for a heat medium based on fluid friction has the following problems. That is, since the viscous fluid such as silicon oil is always present in the heating chamber and does not go out of the heating chamber in the conventional one, the rotation of the rotor in the heating chamber causes the viscous fluid to flow into the gap between the wall surface of the heating chamber and the outer surface of the rotor. However, even when the temperature of the viscous fluid increases due to the shearing heat, the viscous fluid deteriorates at a high temperature because the maximum shearing heat is generated. In addition, since the electromagnetic clutch is generally used for on / off control of the heater, the on / off control means itself is relatively complicated, and cannot be reduced in size and weight, and the cost is high. was there.

SUMMARY OF THE INVENTION The present invention has been made to solve the problem of the fluid heating heater for a heat medium due to the fluid friction, and the on / off control of the heater can be performed by relatively simple means, and the silicon An object of the present invention is to provide a high-performance fluid heater for a heat medium by high-performance fluid friction, which can prevent high-temperature deterioration of a viscous fluid such as oil and can realize a compact, lightweight and low-cost on / off control means.

[0007]

SUMMARY OF THE INVENTION A fluid heating heater for a heat medium based on fluid friction according to the present invention is a system for heating a heat medium fluid by causing a viscous fluid such as silicone oil to generate heat by shearing. A heating chamber in which a viscous fluid such as silicon oil is sealed, and a heating medium fluid jacket is provided in an outer region of the heating chamber, and a drive shaft rotatably supported by a housing through a bearing device in the heating chamber. The heating medium fluid in the heating medium fluid jacket is heated by the heat generated by the viscous fluid being sheared in the gap between the wall surface of the heat generating chamber and the outer surface of the rotor when the rotatably fixed rotor rotates. The use of the movement of a viscous fluid for the on / off control means of the fluid heating heater for a heat medium by the fluid friction having a structure to be performed.
In the embodiment, a viscous fluid storage chamber is provided via a partition plate inside the heat generating chamber inside the housing, and the partition plate is provided with a through hole which is opened and closed by an inner bimetal attached to the plate, and the housing A flow path communicating the heating chamber and the viscous fluid storage chamber is provided, and the inner bimetal is deformed as the temperature of the viscous fluid rises, and the through hole is closed, so that the viscous fluid in the heating chamber enters the viscous fluid storage chamber. When the heater is turned off, the inner bimetal is deformed as the temperature of the viscous fluid decreases, and the through hole is opened, whereby the viscous fluid in the viscous fluid storage chamber moves into the heating chamber and the heater is turned on. In a second embodiment, a viscous fluid storage chamber is provided in the rotor, and an inner wall attached to the inner wall surface is provided on a wall surface of the viscous fluid storage chamber. A through-hole that is opened and closed by metal is provided, and a flow path that connects the heat-generating chamber and the viscous fluid storage chamber is provided in the housing. The inner bimetal is deformed as the temperature of the viscous fluid rises, and the through-hole is closed. As a result, the viscous fluid in the heating chamber moves into the viscous fluid storage chamber and the heater is turned off, and the inner bimetal is deformed as the temperature of the viscous fluid drops and the through holes are opened, so that the viscous fluid in the viscous fluid storage chamber generates heat. The third embodiment is characterized in that the heater is turned on by moving into a room, and a third embodiment is provided with a heat medium fluid jacket and a viscous fluid storage chamber through a partition plate in an outer region of the heat generating chamber. The partition plate is provided with a through hole for communicating the heat generating chamber and the viscous fluid storage chamber, and a valve operated by a thermopellet incorporated in the heat medium fluid jacket. The through hole is opened and closed at a position, and the heat generating chamber and the viscous fluid storage chamber are connected to each other by a pipe. When the pellets are activated and the through hole is closed by the valve, the viscous fluid in the heating chamber moves into the viscous fluid storage chamber and the heater is turned off. The fourth embodiment is characterized in that the viscous fluid in the viscous fluid storage chamber moves into the heating chamber by turning on the heater when the through hole is opened by the valve and the heater opens. In the embodiment, the inner wall of the partition plate is provided with an inner bimetal which is deformed as the temperature of the viscous fluid rises and closes the through hole, and the means for opening and closing the through hole is provided with the thermo pellet and the inner bimetal. This is characterized in that the method is performed by using

That is, according to the present invention, as the on / off control means of the fluid heating heater for the heat medium due to the fluid friction, as the viscous fluid in the heating chamber becomes high temperature, the high temperature viscous fluid in the heating chamber is moved and reduced. In this way, the heater is turned off to minimize the heat generated by the heater. By virtue of such measures, it is possible to prevent the viscous fluid from deteriorating at a high temperature and to control the on / off of the heater. The simplification enables downsizing, weight reduction and low cost of the on / off control means.

As the rotary drive source in the present invention, a system in which a drive shaft is driven by an engine via a pulley or the like, or a dedicated motor separate from the engine, wind power, hydraulic power, or the like can be used.

[0010]

FIG. 1 is a longitudinal sectional side view showing an embodiment of a fluid heating heater for a heat medium by fluid friction according to a first aspect of the present invention, and FIG. 2 corresponds to a second aspect of the present invention. FIG. 1 is a diagram corresponding to FIG. 1 showing an embodiment of a fluid heating heater for a heat medium by fluid friction, and FIG. 3 is a diagram corresponding to FIG. 1 showing an embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 3 of the present invention. FIG. 4 is a diagram corresponding to FIG. 1 showing one embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 4 of the present invention, and FIG. 5 is a schematic diagram showing another embodiment of the present invention. , 1 is a drive shaft, 2, 12, 22, 32 is a housing, 3, 13, 23, 33 is a heating chamber, 4, 14, 24,
34 is a rotor, 5 and 15 are partition plates (separate plates), 6, 16, and 26 are viscous fluid storage chambers, 7, 17, and 2
7, 37 are water jackets, 8 is a bearing device composed of a slide bearing or a needle bearing, 9 is an inner bimetal, 10 is a thermopellet, P1 is a water inlet port, P2 is a water outlet port, 18 is a pulley, 19 is a pump,
20 is a control device, 21 is a viscous fluid tank, 30, 40,
50 and 60 indicate dams, respectively.

A fluid heating heater for a heat medium based on fluid friction shown in FIG. 1 is made of silicon oil or the like provided in a housing 2 supported on a drive shaft 1 through a bearing device 8 composed of a slide bearing or a needle bearing. A rotor 4 attached to the drive shaft 1 is housed in the heat generating chamber 3 in which the viscous fluid is sealed, and a viscous fluid is provided inside the rotor 4 via a partition plate 5 opposed to a small gap. A storage chamber 6 is provided, and a water jacket 7 facing the rotor 4 with a slight gap is fastened to the housing 2 outside the rotor 4 by bolts or the like.

The partition plate 5 is provided with a through hole 5-1 which is opened and closed by an inner bimetal 9 attached to the partition plate, so that the heat generating chamber 3 and the viscous fluid storage chamber 6 communicate with each other. Further, the housing 2 is provided with a flow path 2-1 for communicating the heating chamber 3 with the viscous fluid storage chamber 6. That is, when the through-hole 5-1 is closed by the inner bimetal 9, the viscous fluid pumped by the dam 30 from the inside of the heat generating chamber 3 flows into the viscous fluid storage chamber 6 through the flow path 2-1. When the through hole 5-1 is opened at 9, the viscous fluid in the viscous fluid storage chamber 6 flows into the heat generating chamber 3 through the through hole 5-1.

On the back side of the water jacket 7, a water inlet port P1 and a water outlet port P2 communicating with the jacket 7 are provided.

On the other hand, a pulley 18 is mounted on the drive shaft 1, and is rotated by a belt by an engine of the vehicle. It is needless to say that a dedicated motor or wind-hydraulic power can be used as the drive source instead of the engine.

When the drive shaft 1 is driven by the engine via the pulley 18 in the above-described fluid friction heater for a heat medium by fluid friction, the heat generating chamber 3 provided between the housing 2 and the water jacket 7 is provided. When the rotor 4 rotates inside, the viscous fluid such as silicon oil sealed in the heat generating chamber is sheared by a small gap between the wall surface of the heat generating chamber 3 and the outer surface of the rotor 4 to generate heat, This heat is exchanged with the circulating water as the heat medium fluid in the water jacket 7, and the heated circulating water is supplied to the heating of the vehicle by the heating circuit.

On the other hand, the inner bimetal 9 attached to the partition plate is usually deformed as shown in FIG.
Although 1 is in an open state, when the viscous fluid in the heat generating chamber 3 is heated by the rotation of the rotor 4 and becomes high temperature, the inner bimetal 9 is deformed in the opposite direction and the through hole 5-1 is closed. When the through-hole 5-1 is closed, the viscous fluid in the viscous fluid storage chamber 6 does not flow into the heat generating chamber 3 and the high-temperature viscous fluid pumped and pumped from the heat generating chamber 3 by the dam 30 flows into the flow path 2-1. Flows into the viscous fluid storage chamber 6 through
The amount of oil of the viscous fluid in the heat generating chamber 3 decreases, and finally the heat generation of the viscous fluid in the heat generating chamber 3 is minimized, and the heater is turned off. Thereafter, when the temperature of the viscous fluid in the viscous fluid storage chamber 6 decreases, the through hole 5-1 is opened by the deformation of the inner bimetal 9 as shown in FIG.
The viscous fluid in the viscous fluid storage chamber 6 moves into the heating chamber 3,
Since the viscous fluid generates heat again and rises in temperature, the heater is turned on.

Next, a fluid heating heater for a heat medium by fluid friction shown in FIG. 2 is a system in which a viscous fluid storage chamber is provided in a rotor to perform on / off control of the heater. Similarly, a heat generating chamber 13 filled with a viscous fluid, such as silicon oil, provided in a housing 12 supported on a bearing device 8 formed of a slide bearing or a needle bearing on the outer periphery of the drive shaft 1 is provided. A rotor 14 serving as a viscous fluid storage chamber 16 is attached to the drive shaft 1, and a through hole 16-1 is opened / closed on a cylindrical wall surface of the viscous fluid storage chamber 16 by an inner bimetal 9 attached to the inner wall surface. The housing 12 is further provided with a flow path 12-1 for communicating the viscous fluid storage chamber 16 and the heat generating chamber 13. That is, when the through hole 16-1 is closed by the inner bimetal 9, the viscous fluid in the heating chamber 13 is
, And flows into the viscous fluid storage chamber 16 through the flow path 12-1.
When -1 is opened, the viscous fluid in the viscous fluid storage chamber 16 is
6-1 flows into the heat generating chamber 13.

A water jacket 17 facing the rotor 14 with a slight gap therebetween is fastened to the housing 12 with bolts or the like outside the rotor 14. On the back side of the water jacket 17, a water inlet port P1 and a water outlet port P2 communicating with the jacket 17 are provided.

In the fluid heating heater for heat medium based on fluid friction having the structure shown in FIG.
When the rotor is driven by an engine through the heat generating chamber 13 provided between the housing 12 and the water jacket 17 as shown in FIG. Viscous fluid such as silicone oil is sealed in a small gap between the wall surface of the heat generating chamber 13 and the outer surface of the rotor 14 to generate heat. This heat is generated as a heat medium fluid in the water jacket 17. The heat is exchanged with the circulating water, and the heated circulating water is used for heating the vehicle in the heating circuit.

On the other hand, since the inner bimetal 9 attached to the rotor 14 is normally deformed as shown in the drawing, the through hole 16-1 is in an open state. When the fluid generates heat and becomes high temperature, the inner bimetal 9 is deformed in the opposite direction, and the through hole 16-1 of the rotor 14 is closed. When the through hole 16-1 is closed,
The viscous fluid in the viscous fluid storage chamber 16 provided in the rotor stops flowing into the heating chamber 13 and the heating chamber 1
Since the high-temperature viscous fluid in 3 flows into the viscous fluid storage chamber 16 through the flow path 12-1 by the dam 40, the heating chamber 1
The oil amount of the viscous fluid in the fuel chamber 3 decreases, and finally the heat generating chamber 13
Heat generation of the viscous fluid in the inside is minimized, and the heater is turned off. Thereafter, when the temperature of the viscous fluid in the viscous fluid storage chamber 16 decreases, the through holes 16-1 are opened by the deformation of the inner bimetal 9 as shown in the drawing.
The viscous fluid in the viscous fluid storage chamber 16 moves into the heat generating chamber 13, and the viscous fluid generates heat again and rises in temperature, so that the heater is turned on.

The fluid heating heater for a heat medium based on fluid friction shown in FIG. 3 has a viscous fluid storage chamber and a water jacket integrally provided outside the rotor, and the heater is turned on using thermo-pellets instead of the bimetal type. In the off-control system, the structure is the same as that of FIG. 1, and the silicon oil provided on the housing 22 supported on the outer periphery of the drive shaft 1 via a bearing device 8 composed of a slide bearing or a needle bearing. A rotor 24 attached to the drive shaft 1 is housed in a heating chamber 23 in which a viscous fluid such as is sealed, and the rotor 24 is disposed outside the rotor 24 via a partition plate 15 opposed to the rotor 24 with a slight gap therebetween. A housing 22-1 in which the viscous fluid storage chamber 26 and the water jacket 27 are integrated with each other is fastened to the main body housing 22 with bolts or the like. On the back side of the water jacket 27, a water inlet port P1 and a water outlet port P2 communicating with the jacket 27 are provided.

The partition plate 15 is provided with a through hole 15-1 for communicating the heat generating chamber 23 and the viscous fluid storage chamber 26, and the thermo pellet 10 incorporated in the heat medium fluid jacket 27 is used. A valve 10-1 is provided so as to open and close the through hole 15-1.
The lower part 3 and the viscous fluid storage chamber 26 are connected under the pipe 11. That is, when the through hole 15-1 is closed by the valve 10-1 operated by the thermopellet 10, the viscous fluid in the heat generating chamber 3 is pumped by the dam 50 and passes through the pipe 11 into the viscous fluid storage chamber 26. When the gas flows in and the through hole 15-1 is opened in the thermopellet 10, the viscous fluid storage chamber 2 is opened.
The viscous fluid in 6 flows into the heat generating chamber 23 through the through hole 15-1.

In the fluid heating heater for heat medium by fluid friction having the structure shown in FIG.
When driven by the engine through the heat generating chamber 23, the rotor 24 rotates in the heat generating chamber 23, and viscous fluid such as silicon oil sealed in the heat generating chamber 23
Heat is generated by shearing in a small gap between the wall surface of the rotor 24 and the outer surface of the rotor 24, and this heat is exchanged with circulating water as a heat medium fluid in the water jacket 27, and the heated circulating water is heated by a heating circuit. To be used for heating the vehicle.

On the other hand, the thermopellet 10 incorporated in the heat medium fluid jacket 27 is normally in a state where the valve 10-1 is retracted and the through hole 15-1 is opened as shown in FIG. When the viscous fluid in the heat generating chamber 23 generates heat by the rotation, and the temperature of the heat medium fluid in the heat medium fluid jacket 27 rises to a predetermined temperature, the thermo-pellet 1
0 operates and the through hole 15-1 is closed by the valve 10-1. When the through hole 15-1 is closed, the viscous fluid storage chamber 2
The viscous fluid in 6 stops flowing into the heating chamber 3 and
Since the high-temperature viscous fluid in the heat generating chamber 23 is pressure-fed by the dam 50 and flows into the viscous fluid storage chamber 26 through the pipe 11, the oil amount of the viscous fluid in the heat generating chamber 23 decreases, and finally, the heat is generated. Heat generation of the viscous fluid in the chamber 23 is minimized,
The heater is turned off. Thereafter, when the temperature of the viscous fluid decreases and the temperature of the heat medium fluid in the heat medium fluid jacket 27 decreases, the thermo-pellet 10 operates in the opposite direction and the valve 10-1 moves backward, so that the through hole 15- 1
Is opened, the viscous fluid in the viscous fluid storage chamber 26 moves into the heat generating chamber 23, and the viscous fluid generates heat again and rises in temperature, so that the heater is turned on.

The fluid heating heater for heat medium by fluid friction shown in FIG. 4 is provided with an inner bimetal in the heater shown in FIG.
0 is used in combination with the heater shown in FIG. 3 except that an inner bimetal 9 for opening and closing the through hole 15-1 is provided on the inner wall of the partition plate 15. It is. In other words, in this method, the heater is turned on and off depending on the respective temperatures of the viscous fluid and the heat medium fluid.
In the same manner as described above, when the drive shaft 1 is driven by the engine via the pulley 18, the rotor 24 rotates in the heat generating chamber 23.
When the viscous fluid, such as silicon oil, sealed in the heat generating chamber is sheared by a small gap between the wall surface of the heat generating chamber 23 and the outer surface of the rotor 24 to generate heat and become high temperature, the inner bimetal 9 is deformed and passed. At the same time as the inner opening of the hole 15-1 is closed, the thermopellet 10 is actuated by the heat medium fluid in the heat medium fluid jacket 27 heated by heat exchange, and the through hole 15-1 is operated by the valve 10-1. Is closed. When the through hole 15-1 is closed, the viscous fluid moves as described above, and the heater is turned off. Thereafter, when the temperature of the viscous fluid decreases, the inner bimetal 9 is deformed as shown in the drawing to open the inner opening of the through hole 15-1, and at the same time, the temperature of the heat medium fluid in the heat medium fluid jacket 27 decreases. As a result, the thermo-pellet 10 operates in the reverse direction and the valve 10-1 retreats, so that the outside opening of the through hole 15-1 is opened, and the viscous fluid in the viscous fluid storage chamber 26 is released from the heating chamber 2
3 and the heater is turned on because the viscous fluid again generates heat and rises in temperature. In the case of this heater, since the inner bimetal 9 which operates at the temperature of the viscous fluid and the thermo-pellet 10 which operates at the temperature of the fluid for the heat medium are used in combination for the opening and closing means of the through hole 15-1, the heater is used. On / off control can be performed more reliably.

The fluid heating heater for a heat medium by fluid friction shown in FIG. 5 includes a viscous fluid supply means for supplying a viscous fluid from the outside into the housing and a heater based on at least the temperature of the heat medium fluid, the viscous fluid temperature and the engine speed. And a control means for controlling the supply of the viscous fluid by the viscous fluid supply means to control on / off of the heater. The structure of the drive shaft is driven by a vehicle engine via a pulley 18. The drive shaft 1 is attached to a heat generating chamber 33 in which a viscous fluid such as silicon oil is sealed and is provided in a housing 32 provided on a housing 32 supported on a bearing device 8 formed of a slide bearing or a needle bearing on the outer periphery of the drive shaft 1. The rotor 34 is accommodated, and the rotor 34
A water jacket 37 facing the rotor with a slight gap therebetween is fastened to the housing 32 by bolts or the like. Further, the viscous fluid supply means is provided in the housing 3.
One end of the oil feed pipe 31 is connected to a through hole 32-1 communicating with the heat generating chamber 33 formed in the pump 2, and the other end of the oil feed pipe 31 is connected to the pump 1.
9 is connected to the viscous fluid tank 21. The pump 19 is driven by a motor M, and the viscous fluid tank 21
Has a function of sending a viscous fluid from the heating chamber 33 into the heat generating chamber 33 through the oil feed pipe 31 or sending a viscous fluid from the heat generating chamber 33 back to the viscous fluid tank 21 through the oil feed pipe 31 by the dam 60. The rotation of the motor M is controlled by a control signal from the control device 20, and the control device 20 includes a detection signal of a sensor (not shown) for detecting the temperature of the heat medium fluid, and a sensor (not shown) for detecting the temperature of the viscous fluid. ) And a sensor that detects the engine speed (not shown)
Is input.

In the fluid heating heater for heat medium by fluid friction having the structure shown in FIG.
When the rotor is rotated by a rotor 34 in a heating chamber 33 provided between the housing 32 and the water jacket 37 as shown in FIG. The sealed viscous fluid such as silicon oil is sheared by a small gap between the wall surface of the heat generating chamber 33 and the outer surface of the rotor 34 to generate heat, and this heat is generated as a heat medium fluid in the water jacket 37. The heat is exchanged with the circulating water, and the heated circulating water is used for heating the vehicle in the heating circuit.

On the other hand, from the viscous fluid tank 21 to the heating chamber 33
As described above, the amount of the viscous fluid to be sent or returned is set based on the detection data (heat medium temperature, viscous fluid temperature, and engine speed) from each sensor. When the temperature exceeds the upper limit temperature, the heater can be turned off by returning the viscous fluid in the heat generating chamber 33 to the viscous fluid tank 21 via the oil feed pipe 31, and when the temperature of the viscous fluid falls, the viscous fluid tank The heater can be turned on by sending a viscous fluid from 21 into the heat generating chamber 33. The on / off control of the heater can be similarly performed even when the temperature of the heat medium fluid or the engine speed is used.

[0029]

As described above, the fluid heating heater for a heat medium based on fluid friction according to the present invention is used as on / off control means of the heater as the viscous fluid in the heating chamber becomes high in temperature as the temperature of the viscous fluid in the heating chamber becomes high. By moving and reducing the high-temperature viscous fluid, the heater can be turned off to minimize the heat generated by the heater, so that high-temperature deterioration of the viscous fluid can be prevented, and the on / off control of the heater can be controlled. The simplicity allows the on / off control means to be more compact, lighter, and lower cost. In addition, externally controlling the amount of the viscous fluid based on the heat medium fluid temperature, the viscous fluid temperature, and the engine speed. This has an excellent effect that the heater temperature can be finely controlled.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 1 of the present invention.

FIG. 2 is a view corresponding to FIG. 1 showing an embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 2 of the present invention.

FIG. 3 is a view corresponding to FIG. 1 showing an embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 3 of the present invention.

FIG. 4 is a view corresponding to FIG. 1 showing one embodiment of a fluid heating heater for a heat medium by fluid friction according to claim 4 of the present invention.

FIG. 5 is a schematic view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Drive shaft 2, 12, 22, 32 Housing 3, 13, 23, 33 Heating chamber 4, 14, 24, 34 Rotor 5, 15 Partition plate (separate plate) 6, 16, 26 Viscous fluid storage chamber 7, 17, 27, 37 Water jacket 8 Bearing device 9 Inner bimetal 10 Thermo pellet 18 Pulley 19 Pump 20 Control device 21 Viscous fluid tank 31 Oil feed pipe 30, 40, 50, 60 Dam P1 Water inlet port P2 Water outlet port M Motor

Claims (4)

[Claims] 1. A method for heating a heat medium fluid by causing a viscous fluid such as silicone oil to generate heat by shearing, wherein a heating chamber in which a viscous fluid such as silicone oil is sealed inside a housing; A heat medium fluid jacket is provided in the outer region, and a rotatable rotor is rotatably fixed in the heat generating chamber on a drive shaft rotatably supported by a housing via a bearing device. In the fluid heating heater for heat medium by fluid friction, the heat medium generated in the heat medium fluid jacket is heated by heat generated by shearing in a gap between a wall surface and an outer surface of the rotor. A viscous fluid storage chamber is provided inside the heat generating chamber via a partition plate, and the partition plate has a through hole that is opened and closed by an inner bimetal attached to the partition plate. And a flow path communicating the heat generating chamber and the viscous fluid storage chamber is provided in the housing,
As the temperature of the viscous fluid rises, the inner bimetal is deformed and the through hole is closed, so that the viscous fluid in the heating chamber moves into the viscous fluid storage chamber and the heater is turned off. A fluid heating heater for a heat medium by fluid friction, wherein the viscous fluid in the viscous fluid storage chamber moves into the heat generation chamber when the bimetal is deformed and the through hole is opened, and the heater is turned on. 2. A method for heating a heat medium fluid by causing a viscous fluid such as silicone oil to generate heat by shearing, wherein a heat generating chamber in which a viscous fluid such as silicone oil is sealed inside a housing; A heat medium fluid jacket is provided in the outer region, and a rotatable rotor is rotatably fixed in the heat generating chamber on a drive shaft rotatably supported by a housing via a bearing device. In the fluid heating heater for heat medium based on fluid friction, the heat medium generated in the heat medium fluid jacket is heated by heat generated by shearing in a gap between a wall surface and an outer surface of the rotor. A viscous fluid storage chamber is provided therein, and a through hole that is opened and closed by an inner bimetal attached to the inner wall surface is provided on the wall surface of the viscous fluid storage chamber, and A flow passage communicating the heating chamber and the viscous fluid storage chamber is provided in the housing, and the inner bimetal is deformed as the temperature of the viscous fluid rises, and the through hole is closed. And the heater is turned off, and the viscous fluid in the viscous fluid storage chamber moves into the heating chamber as the inner bimetal is deformed and the through hole is opened as the temperature of the viscous fluid drops, so that the heater is turned on. A fluid heater for a heat medium based on fluid friction, wherein the heater is configured. 3. A method for heating a heat medium fluid by causing a viscous fluid such as silicone oil to generate heat by shearing, wherein a heating chamber in which a viscous fluid such as silicone oil is sealed inside a housing; A heat medium fluid jacket is provided in the outer region, and a rotatable rotor is rotatably fixed in the heat generating chamber on a drive shaft rotatably supported by a housing via a bearing device. The heat medium generated by shearing in a gap between a wall surface and an outer surface of a rotor heats the heat medium fluid in the heat medium fluid jacket by heat generated by shearing. A heat medium fluid jacket and a viscous fluid storage chamber are provided through a partition plate in an outer region of the chamber, and a through hole is provided in the partition plate for communicating the heat generation chamber and the viscous fluid storage chamber. And a structure in which the through hole is opened and closed by a valve operated by a thermopellet incorporated in the heat medium fluid jacket, and the heating chamber and the viscous fluid storage chamber are connected by a pipe. As the temperature of the heat medium fluid in the heat medium fluid jacket rises, the thermopellet operates and the valve closes the through hole, so that the viscous fluid in the heat generating chamber moves into the viscous fluid storage chamber. Then, the heater is turned off, the thermo-pellet operates in the opposite direction as the temperature of the heat medium fluid decreases, and the through-hole is opened by a valve, whereby the viscous fluid in the viscous fluid storage chamber moves into the heat-generating chamber. A fluid heating heater for a heat medium based on fluid friction, wherein the heater is configured to be turned on. 4. The fluid heating for a heat medium by the fluid friction according to claim 3, wherein an inner bimetal which is deformed as the temperature of the viscous fluid rises and closes the through hole is provided on an inner wall surface of the partition plate. heater.