JPH1191344A - Water pump integrated type shear heating unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the loadability to a periphery of an engine by sharing a driving shaft of an impeller and a driving shaft of a rotor of the shear heating unit. SOLUTION: In this heating unit, a water pump integration type viscous heater 1 is formed by a housing 5 for forming a cooling water conduit 4 communicated with a cooling water circuit of an engine, a casing 7 mounted in the housing 5 for partitioning a heating chamber 6 for accomodating the liquid of high viscosity from the cooling water passage 4 in which the cooling water blows, an impeller 8 for pressurizing the cooling water in the cooling water passage 4, and a rotor 9 for making the shear force act on the liquid of high viscosity in the heating chamber 6 when the rotating power of the engine is added thereto to generate the heat in the liquid of high viscosity. Whereby one driving shaft 3 can be used in common for the impeller 8 of a water pump 2 and the rotor 9 of the shear heating unit, and the cooling water passage 4 formed in the housing 5, is used in common for the water pump 2 and the shear heating unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention simplifies a power transmission device by sharing a drive shaft for driving an impeller of a water pump and a rotor of a shear heat generator.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pump-integrated shear heat generator for improving the mountability of a shear heat generator on a vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, in Japanese Patent Laid-Open Publication No. Hei 2-246823 or Japanese Patent Laid-Open Publication No. Hei 3-57877, a cooling water circuit for supplying cooling water from an engine to a heater core is provided in a cooling water circuit. 2. Description of the Related Art A heating device for a vehicle has been proposed in which a shearing heat generator for heating water to improve a heating capacity is installed.

[0003] Here, the shear heat generator transmits the rotational power of the engine to a drive shaft via a belt, a pulley and an electromagnetic clutch, one of which serves as a heat generating chamber with a partition member provided in a housing interposed therebetween, and the other for cooling. A rotor that rotates integrally with the drive shaft is disposed in the heat generating chamber as a water channel, and the rotation of the rotor causes a shear force to act on a viscous liquid such as silicon oil sealed in the heat generating chamber to generate heat, thereby generating heat. The cooling water in the cooling water passage is heated by heat.

[0004]

However, before the mounting of the shear heat generator, engine accessories such as an AC generator, a water pump, an oil pump and a compressor are mounted around the engine. Therefore, it is very difficult to further mount a shearing heat generator around the engine having many restrictions as described above, in order to reduce the space for mounting auxiliary equipment with the recent miniaturization of the engine room. . Further, since a cooling water pipe for connecting the cooling water path of the shearing heat generator to a cooling water circuit for supplying cooling water from the engine to the heater core is required, the layout of the cooling water pipe is complicated, and There is also a problem that the mountability on a vehicle is deteriorated.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a water pump which can be mounted around an engine by sharing the drive shaft of the impeller of the water pump and the drive shaft of the rotor of the shear heat generator. An object of the present invention is to provide a body shear heating device. Another object of the present invention is to provide a water pump-integrated shear heat generator that can simplify the layout of the cooling water pipe by sharing the cooling water channel of the water pump and the cooling water channel of the shear heat generator.

[0006]

According to the first aspect of the present invention, the water pump is constituted by the water passage forming member and the impeller, and the shear heat generator is constituted by the water passage forming member, the partition member and the rotor. Then, the impeller of the water pump and the rotor of the shearing heat generator are arranged on the same axis, and the impeller and the rotor share one drive shaft of the power transmission means to transmit the rotational power of the engine to both the impeller and the rotor. , The number of parts of the power transmission means can be reduced.

As a result, a large space is not required for the operation of the power transmission means, and a dedicated mounting space for the shear heat generator is not required. Even if the mounting space is narrowed, not only the water pump but also the shear heat generator can be easily mounted around the engine. By sharing the cooling water passage of the water pump and the cooling water passage of the shear heating device, it is not necessary to add a cooling water pipe dedicated to the shear heating device that connects the cooling water passage of the shear heating device and the engine. The arrangement of the water pipe can be simplified, and the mountability on a vehicle can be further improved.

According to the second aspect of the present invention, the first magnet provided at the end of the drive shaft or the rotor on the cooling water channel side and the second magnet provided at a position facing the first magnet of the impeller are attracted. As the drive shaft and the rotor rotate, the impeller also rotates, even if the impeller is not directly connected to the drive shaft. As a result, there is no need to provide a bearing or a sealing material between the partition member and the drive shaft, so that the axial dimension of the water pump-integrated shear heat generator can be reduced, and the thin water pump-integrated shear heat generator can be reduced. A heater can be provided.

According to the third aspect of the present invention, a plurality of ridges which are curved in the same direction as the rotation direction of the impeller are provided on the cooling water channel side end surface outside the outer periphery of the impeller of the partition member. This allows the cooling water in the cooling water passage to flow smoothly and without loss in the centrifugal direction of the impeller. As a result, the heat transfer coefficient on the cooling water side can be improved, so that the generated heat of the viscous liquid in the heating chamber is efficiently transferred to the cooling water in the cooling water passage. Therefore, when the generated heat of the viscous liquid in the heating chamber is used as an auxiliary heat source for heating, the auxiliary heating capacity can be improved.

According to the fourth aspect of the present invention, the rotor is fixed to the intermediate portion of the drive shaft provided so as to penetrate the heat generating chamber, and protrudes into the cooling water channel from the cooling water channel side end surface of the partition member. By fixing the impeller to one end of the drive shaft provided in the drive shaft, one drive shaft can be shared by both the impeller and the rotor. Thereby, the effect described in claim 1 can be achieved.

According to the fifth aspect of the present invention, the impeller is also made to have a heat transfer area by manufacturing the impeller from a material having excellent heat conductivity. As a result, not only the heat generated by the viscous liquid in the heating chamber is transferred to the cooling water in the cooling water passage through the partition member, but also the heat of the viscous liquid passes through the drive shaft and the impeller to the cooling water in the cooling water passage. , The efficiency of heat transfer to the cooling water in the cooling water passage is further improved.

According to the sixth aspect of the present invention, the heat transfer fins are spirally formed on the outer periphery of the inner cylindrical portion of the partition member, so that the impeller rotates to flow in the cylindrical water channel as a swirling flow. Heat transfer fins are formed along the flow direction of the cooling water. Thereby, the cooling water flowing while turning in the cylindrical water channel can efficiently contact the heat transfer fins, and the heat transfer coefficient on the cooling water side is improved.

According to the seventh aspect of the present invention, a plurality of rows of ridges curved in the same direction as the rotation direction of the impeller are provided on the partition member side end surface of the impeller, so that when the impeller rotates, the partition member of the impeller is provided. The cooling water between the side end surface and the cooling water channel side end surface of the partition member is stirred. As a result, the cooling water that enters between the partition member side end surface of the impeller and the cooling water channel end surface of the partition member in the cooling water channel is efficiently sent to the downstream without stagnating therebetween, so that the cooling water side heat transfer coefficient is reduced. Can be improved.

According to the eighth aspect of the present invention, the first circulation circuit for returning the cooling water flowing out of the engine to the engine through the cooling water passage, the cooling water flowing out of the engine through the cooling water passage and the heating heat exchanger. 2nd return to the engine
By providing the circulation circuit and the cooling water circuit, the cooling water heated by the generated heat of the viscous liquid in the heating chamber can be sent to the engine and the heat exchanger for heating. Thus, the engine can be warmed up and the auxiliary heating capacity can be improved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

[Configuration of First Embodiment] FIGS. 1 to 4 show a first embodiment of the present invention.
FIG. 1 illustrates an embodiment, and FIG. 1 is a diagram illustrating a cooling water circuit of a vehicle heating device.

The vehicle heating apparatus according to the present embodiment is configured to supply cooling water flowing through a cooling water circuit 11 of a water-cooled diesel engine (hereinafter abbreviated as engine) E mounted in an engine room (not shown) of the vehicle. It is used as the main heat source for heating. The cooling water circuit 11 supplies cooling water flowing out of the water jacket of the engine E to a thermostat 12,
A circulation circuit for returning to the engine E through a radiator 13 and a water pump-integrated shear heating device (hereinafter abbreviated as a viscous heater) 1, and a cooling circuit for returning cooling water flowing out of a water jacket of the engine E to the engine E through a heater core 14. And a circulation circuit.

Here, the heater core 14 is equivalent to the heating heat exchanger of the present invention, and is disposed in a duct (not shown) arranged on the front side in the vehicle interior, and is operated by a blower. The interior of the vehicle is heated by exchanging heat between the air flowing inside and the cooling water flowing into the heater core 14 to heat the air. Reference numeral 15 denotes a bypass flow path that bypasses the cooling water flowing out of the engine 2 from the radiator 13 when the cooling water temperature in the cooling water circuit 11 is equal to or lower than the set temperature.

Next, the structure of the viscous heater 1 will be described with reference to FIGS. Here, FIG. 2 to FIG. 4 are views showing the viscous heater 1.

The viscous heater 1 of this embodiment is provided integrally with a water pump 2 which is an engine accessory, and includes a drive shaft 3 to which the rotational power of the engine E is transmitted,
A housing 5 forming a cooling water passage 4 therein, a casing 7 forming a heat generating chamber 6 therein, an impeller 8 rotatably housed in the cooling water passage 4, and a rotatable housing housed in the heat generating chamber 6. The heating device includes a rotor 9 and a heating value adjusting mechanism 10 for adjusting the heating value of the viscous liquid in the heating chamber 6.

The drive shaft 3 is rotatable toward the inner peripheral side of the casing 7 via the bearing 21 and the seal member 22 with the front end (the left end in the drawing) protruding outside the housing 5 and the casing 7. Supported. The rear end of the drive shaft 3 does not protrude into the cooling water passage 4 from the rear end surface (the cooling water passage side end surface) of the casing 7.
A pulley 23 is fixed to a front end of the drive shaft 3 using a fastener. A belt (not shown) wrapped around the pulley 23 is wrapped around a crank pulley of the engine E. The power transmission means of the present invention is constituted by these belts, pulleys and drive shaft 3.

The housing 5 is equivalent to the water channel forming member of the present invention, and the inside of the cooling water circuit 11 is provided between both end faces of the casing 7 housed therein and the rear cover 24 connected to the rear side. The cooling water passage 4 through which the circulating cooling water flows is formed. On the front side of the housing 5, there is provided a circular outlet pipe 26 forming a cooling water outlet passage 25 for supplying the cooling water in the cooling water passage 4 to the outside (for example, the water jacket of the engine E or the heater core 14). Have. Reference numerals 5a and 5b denote mounting stays for mounting the viscous heater 1 to a fixing member such as the engine E using a fastener such as a bolt or a nut.

The rear cover 24 is assembled in a liquid-tight manner on the rear side of the housing 5 by using fasteners such as bolts, and the cooling water inlet passage 2 for introducing cooling water into the cooling water passage 4.
A ring-shaped outlet pipe 28 that forms 7 projects axially from the rear side surface. In addition, on the inner periphery of the outlet pipe 28,
A substantially cross-shaped bearing portion 29 for rotatably supporting the tip of the impeller 8 is integrally formed.

The casing 7 corresponds to the partition member of the present invention, and is formed in a predetermined shape from a metal material having excellent thermal conductivity such as an aluminum alloy. The casing 7 includes a front side plate 31 having a substantially disk-shaped groove formed on the rear side, and a rear side plate 32 joined so as to liquid-tightly close the groove of the front side plate 31. It is composed of

Front and rear side plates 31,
The outer peripheral surface of 32 is joined to the inner peripheral surface of the housing 5 using joining means such as welding. In addition, between the outer periphery of the front and rear side plates 31, 32 and the inner periphery of the housing 5, there are provided a plurality of cooling water passages from the rear cooling water passage 4 to the front cooling water passage 4. Water hole 33
Are formed in the circumferential direction so as to have a substantially partial annular shape.

A heating chamber 6 is formed between the front and rear side plates 31 and 32 in which a high-viscosity liquid (for example, high-viscosity oil such as high-viscosity silicon oil) which is heated when a shearing force is applied is filled. Have been. And
A plurality of convex fins 34 for efficiently transmitting the heat of the highly viscous liquid to the cooling water are integrally formed on the front side surface (the cooling water passage side surface) of the front side plate 31. These convex fins 34 are formed in a substantially arc shape at substantially equal intervals in the radial direction about the axis.

A plurality of convex fins 35 for efficiently transmitting the heat of the highly viscous liquid to the cooling water are integrally formed on the rear side surface (the cooling water channel side surface) of the rear side plate 32. These convex fins 35 correspond to the ridges of the present invention, and as shown in FIG.
, That is, in the same direction as the flow direction of the swirling flow (cooling water) discharged from the impeller 8, and the convex fins 35 having such a shape are arranged in the circumferential direction. The height of the convex fins 35 may be equal to the width of the cooling water passage 4 on the rear side or the height of the impeller 8.

At the center of the rear side plate 32, a disk-shaped convex wall is formed. A concave portion is formed on the front side of the convex wall, and a ring-shaped first fixed to the rear end of the drive shaft 3 is formed in the concave portion.
A permanent magnet (ferrite magnet or the like) 41 is rotatably accommodated. Further, a concave bearing portion 42 for rotatably supporting the impeller 8 is formed on the rear side of the convex wall.

The impeller 8 includes a pin 43 rotatably supported by the bearing 29, a shaft rotatably supported by the bearing 42 (corresponding to a shaft support of the present invention) 44, and a first permanent magnet 41. And a second permanent magnet 45 provided so as to oppose. The second permanent magnet 45 is
The magnetization direction is determined so as to attract the permanent magnet 41. When the rotational power of the engine E is transmitted to the drive shaft 3, the impeller 8
When the second permanent magnet 45 follows the permanent magnet 41, pressure is applied to the cooling water in the cooling water passage 4, and the cooling water circuit 1
A circulating flow of cooling water is generated in 1.

The rotor 9 has a substantially annular plate shape, is rotatably disposed in the heat generating chamber 6, and is fixed to the outer periphery of an intermediate portion of the drive shaft 3 by press-fitting. A plurality of grooves (not shown) are formed on the outer peripheral surface or both end surfaces of the rotor 9, and a protrusion is formed between adjacent grooves. When the rotational power of the engine E is transmitted to the drive shaft 3, the rotor 9
By rotating integrally with the drive shaft 3, a shear force is applied to the highly viscous liquid sealed in the heat generating chamber 6.

The heat generation amount adjusting mechanism 10 has a storage chamber 46 for storing a highly viscous liquid below the heat generation chamber 6 in the drawing. In the storage chamber 46, it is possible to store all (for example, 30 g) of the highly viscous liquid in the heat generating chamber 6. In the storage chamber 46, a piston 48 that changes the internal volume of the storage chamber 46 by rotation of a spiral special gear 47 is arranged.

The piston 48 is driven by a motor 49 as a driving means in a normal rotation direction or a reverse rotation direction to return a highly viscous liquid from the storage chamber 46 to the heat generating chamber 6 or to move the high viscosity liquid from the heat generating chamber 6 out of the heat generating chamber 6. The heating amount adjusting means adjusts the heat generation amount of the high-viscosity liquid in the heating chamber 6 by sucking the high-viscosity liquid into the storage chamber 46. The motor 49
Is a viscous control device (not shown)
Energization control.

[Operation of First Embodiment] Next, the operation of the viscous heater 1 of the present embodiment will be briefly described with reference to FIGS.

When the rotational power of the engine E is transmitted to the drive shaft 3 via the belt and the pulley 23, the first permanent magnet 41 provided at the rear end of the drive shaft 3 also rotates integrally with the drive shaft 3. I do. For this reason, the second permanent magnet 45 arranged opposite to the first permanent magnet 41 rotates following the rotation of the first permanent magnet 41, so that the impeller 8 of the water pump 2 rotates. Thus, the cooling water that has cooled the engine E flows out of the water jacket, passes through the radiator 13 or the bypass passage 15, and flows into the rear cooling water passage 4 from the cooling water inlet passage 27.

At this time, when the temperature of the cooling water in the cooling water circuit 11 is lower than the set temperature, the motor 49 rotates in the forward direction to move the piston 48 to the left side in the drawing, so that The high-viscosity liquid is returned into the heat generating chamber 6 from. Therefore, the rotation of the rotor 9 of the viscous heater 1 that rotates integrally with the drive shaft 3 causes a shearing force to act on the highly viscous liquid in the heat generating chamber 6, so that the cooling water discharged from the impeller 8 in the centrifugal direction. The swirling flow contacts the rear side surface of the rear side plate 32 and the convex fins 35 to absorb the heat generated by the highly viscous liquid.

The cooling water that has reached the outer peripheral side while turning inside the cooling water passage 4 on the rear side flows into the cooling water passage 4 on the front side through a plurality of water passage holes 33. And
The cooling water flowing into the cooling water passage 4 on the front side contacts the front side surface of the front side plate 31 and the convex fins 34 to absorb the heat generated by the high-viscosity liquid.

[Effects of the First Embodiment] As described above, the viscous heater 1 of the present embodiment circulates through the cooling water passage 4 to collect the generated heat of the viscous liquid and cool the sufficiently heated cooling water. After being once returned to the engine E from the water outlet passage 25, it is supplied to the heater core 14. As a result, the air flowing through the duct exchanges heat with the high-temperature cooling water, so that even if the engine E having a small calorific value is used as the main heat source for heating, the heating of the passenger compartment can be performed with sufficient heating capacity. It can be carried out.

In the present embodiment, the water pump 2 is constituted by the housing 5 and the impeller 8, and the viscous heater 1 is constituted by the housing 5, the casing 7 and the rotor 9. Then, the impeller 8 of the water pump 2 and the rotor 9 of the viscous heater 1 are arranged on the same axis, and the impeller 8 and the rotor 9 share one drive shaft 3 to transmit the rotational power of the engine E to the impeller 8. By transmitting the power to both the power transmission device and the rotor 9, the number of components of the entire power transmission device can be reduced.

As a result, a large space is not required for the power transmission device, in particular, the operation of the belt, and a special mounting space for the viscous heater 1 is not required. Even in the case where the mounting space of the machine is narrowed, not only the water pump 2 but also the viscous heater 1 can be easily mounted around the engine E. By sharing the cooling water passage 4 of the water pump 2 and the cooling water passage 4 of the viscous heater 1, it is necessary to add a cooling water pipe dedicated to the viscous heater 1 that connects the cooling water passage 4 of the viscous heater 1 and the engine E. Therefore, the layout of the cooling water pipe can be simplified, and the mountability to the vehicle can be further improved.

In the present embodiment, the first permanent magnet 41 provided at the end of the drive shaft 3 or the rotor 9 on the side of the cooling water passage and the second permanent magnet provided at a position facing the first permanent magnet 41 of the impeller 8. Since the suction shaft 45 and the suction shaft 45 suck each other, even if the impeller 8 is not directly connected to the drive shaft 3, if the drive shaft 3 and the rotor 9 rotate, the impeller 8 also rotates. This eliminates the need to provide a bearing or a sealing material between the casing 7 and the drive shaft 3, so that the axial dimension of the water pump integrated type viscous heater 1 can be reduced, and the thin water pump integrated type The viscous heater 1 can be provided.

In this embodiment, a plurality of convex fins 35 which are curved in the same direction as the rotation direction of the impeller 8 are provided on the rear end face of the rear side plate 32 outside the outer periphery of the impeller 8. With this arrangement, the cooling water in the cooling water passage 4 flows smoothly and without loss in the centrifugal direction of the impeller 8. Thereby, the heat transfer coefficient on the cooling water side can be improved, so that the heat generated by the highly viscous liquid in the heat generating chamber 6 is efficiently transferred to the cooling water in the cooling water passage 4.
Therefore, when the generated heat of the highly viscous liquid in the heat generating chamber 6 is used as an auxiliary heat source for heating, the auxiliary heating capacity can be improved.

Here, when the temperature of the cooling water in the cooling water circuit 11 is higher than the set temperature, the motor 49 rotates in the reverse direction to move the piston 48 to the right side in the drawing, so that the inside of the heat generating chamber 6 is removed. The highly viscous liquid is sucked into the storage chamber 46. As described above, when the viscous heater 1 is not used, the high-viscosity liquid is removed from the heat generating chamber 6 so that heat is not generated even when the rotor 9 rotates, thereby eliminating the need for providing a clutch means such as an electromagnetic clutch. Of the viscous heater 1 (ON) and stop (OFF)
Can be controlled. Further, by adjusting the amount of the highly viscous liquid in the heat generating chamber 6, an excessive increase in the oil temperature of the highly viscous liquid in the heat generating chamber 6 can be suppressed.

Second Embodiment FIGS. 5 and 6 show a second embodiment of the present invention and show a viscous heater.

As in the first embodiment, the viscous heater 1 of the present embodiment has a drive shaft 3 to which the rotational power of the engine E is transmitted, a housing 5 having a cooling water passage 4 formed therein, and a heat generator formed therein. A casing 7 that forms the chamber 6, an impeller 8 rotatably housed in the cooling water channel 4, a rotor 9 rotatably housed in the heat generating chamber 6, and a heat generation amount of the viscous liquid in the heat generating chamber 6. And a heating value adjusting mechanism 10 for adjusting the heating value. The cooling water passage 4 includes a cylindrical water passage 50 extending between the housing 5 and the casing 7 in the cylindrical direction.
Are formed. Further, the drive shaft 3 and the impeller 8
As a material of the metal, a metal material having excellent thermal conductivity such as an aluminum alloy is used.

The housing 5 includes a cylindrical body (corresponding to a first cylindrical portion of the present invention) 52 having a tapered portion 51 at the inlet end, and an end of the body 52 on the pulley 23 side. A closing portion 53 provided so as to be closed, an inlet pipe 55 forming a cooling water inlet passage 54 therein, and an outlet pipe 57 forming a cooling water outlet passage 56 therein are formed. Reference numerals 58 and 59 denote mounting stays for mounting the viscous heater 1 to a fixing member such as the engine E using a fastener such as a bolt or a nut.

The casing 7 includes a cylindrical body (corresponding to a second cylindrical portion of the present invention) 60 provided inside the body 52 of the housing 5 and an inlet side of the body 60. A disk-shaped closing portion 61 to be closed, and a cylindrical body portion 60
And a disk-shaped closing portion 62 that is liquid-tightly fixed to the inner surface of the closing portion 53 of the housing 5. Heat transfer fins 63 are formed on the outer periphery of the body 60 in a spiral shape along the flow direction of the cooling water in the cylindrical water passage 50.

As described above, in the present embodiment, the same effects as in the first embodiment can be achieved. Other,
By using the impeller 8 as a heat transfer portion as a material of the drive shaft 3 and the impeller 8 as a metal material having excellent thermal conductivity such as an aluminum alloy, the effective heat dissipation area (heat transfer area) of the viscous heater 1 increases. In addition, the cooling water side heat transfer coefficient can be improved. Further, by making the body 60 of the casing 7 cylindrical, the viscous heater 1
Since the effective heat dissipation area (heat transfer area) further increases, the heat transfer coefficient on the cooling water side can be further improved.

Then, the heat transfer fins 63 are formed along the flow direction of the cooling water flowing as a swirling flow in the cylindrical water channel 50 of the cooling water channel 4 by the rotation of the impeller 8, so that the inside of the cylindrical water channel 50 is formed. The cooling water swirling and flowing can efficiently contact the heat transfer fins 63 and the outer peripheral surface of the body 60, so that the heat transfer coefficient on the cooling water side can be further improved. Therefore, when the generated heat of the highly viscous liquid in the heat generating chamber 6 surrounded by the casing 7 is used as an auxiliary heat source for heating, the auxiliary heating capacity can be significantly improved.

[Third Embodiment] FIGS. 7 and 8 show a third embodiment of the present invention. FIG. 7 is a view showing a viscous heater.

In this embodiment, as shown in FIG. 8, a plurality of blades (the present invention) curved in the same direction as the rotation direction of the impeller 8 are provided on the front side surface (the side surface of the casing 7) of the impeller 8 of the second embodiment. 64) are formed. Thus, when the impeller 8 is rotationally driven by the drive shaft 3, the cooling water between the front end surface of the impeller 8 and the rear end surface of the casing 7, which is generally a stagnation region, is stirred. As a result, the cooling water that enters between the front end face of the impeller 8 and the rear end face of the casing 7 in the cooling water channel 4 is efficiently sent to the cylindrical water channel 50 without stagnation therebetween. The water side heat transfer coefficient can be further improved.

[Fourth Embodiment] FIG. 9 shows a fourth embodiment of the present invention, and is a view showing a cooling water circuit of a vehicle heating device.

In the cooling water circuit 11 of the present embodiment, the cooling water flowing out of the water jacket of the engine E passes through the thermostat 12, the radiator 13, the water pump-integrated viscous heater 1 and the solenoid valve 16, and the engine E
The first circulation circuit 17 for returning the cooling water and the cooling water flowing out of the water jacket of the engine E are supplied to the thermostat 1.
2, a radiator 13, a water pump-integrated viscous heater 1, and a second circulation circuit 18 for returning to the engine E through the heater core 14.

With the above configuration, if the heating capacity in the vehicle compartment is insufficient even when the cooling water heated by the water pump-integrated viscous heater 1 is supplied to both the water jacket of the engine E and the heater core 14, the solenoid valve is provided. By closing the valve 16 and preferentially supplying the high-temperature cooling water heated by the water pump-integrated viscous heater 1 to the heater core 14, the heating capacity of the vehicle interior can be improved.

[Other Embodiments] In this embodiment, the rotational power of the engine E is transmitted to the drive shaft 3 via the belt and the pulley 23, but the drive shaft 3 is directly connected to the output shaft of the engine E. And the rotational power of engine E to drive shaft 3
May be transmitted. Also, viscous heater 1
As the housing 5, a component integrally formed with the engine E may be used.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a cooling water circuit of a vehicle heating device (first embodiment).

FIG. 2 is a sectional view showing a viscous heater (first embodiment).

FIG. 3 is an AA diagram of FIG. 2 (first embodiment).

FIG. 4 is a front view showing a viscous heater (first embodiment).

FIG. 5 is a sectional view showing a viscous heater (second embodiment).

FIG. 6 is a front view showing a viscous heater (second embodiment).

FIG. 7 is a sectional view showing a viscous heater (third embodiment).

FIG. 8 is a front view showing a front side of an impeller (third embodiment).

FIG. 9 is a configuration diagram illustrating a cooling water circuit of a vehicle heating device (fourth embodiment).

[Explanation of symbols]

E engine (water-cooled diesel engine) 1 viscous heater (shear heat generator integrated with water pump) 2 water pump 3 drive shaft 4 cooling water channel 5 housing (water channel forming member) 6 heat generating chamber 7 casing (partition member) 8 impeller 9 rotor Reference Signs List 10 heat generation amount adjustment mechanism 11 cooling water circuit 14 heater core (heating heat exchanger) 17 first circulation circuit 18 second circulation circuit 35 convex fin (protrusion) 41 first permanent magnet (first magnet) 44 shaft ( Shaft support) 45 Second permanent magnet (second magnet) 50 Cylindrical water channel (cylindrical water channel) 52 Body (first cylindrical portion) 60 Body (second cylindrical portion) 63 Heat transfer fin 64 Blade (blade) Ridge)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsumi Inoue 1-1-1, Showa-cho, Kariya-shi, Aichi Pref. Inside DENSO

Claims (8)

[Claims] (A) a water channel forming member for forming a cooling water channel through which cooling water circulating in a cooling water circuit of an engine; and (b) a vibrating liquid is provided in the water channel forming member. A partition member for forming a heat generating chamber and partitioning the heat generating chamber and the cooling water passage; and (c) applying a pressure to the cooling water in the cooling water passage when the rotational power of the engine is applied to the cooling water circuit. (D) disposed on the same axis as the impeller, and when a rotational power of the engine is applied, a shear force is applied to the viscous liquid in the heat generating chamber to generate a viscous liquid. A water pump-integrated shearing heat generator, comprising: a rotor for generating heat; and (e) power transmission means having one drive shaft for transmitting the rotational power of the engine to both the impeller and the rotor. 2. The water pump-integrated shearing heat generator according to claim 1, wherein the drive shaft has the rotor integrally provided on an outer periphery thereof, and the partition member does not protrude into the cooling water passage. The drive shaft or the rotor is provided at a first end of the cooling water channel side.
A magnet support, wherein the impeller is rotatably supported on a cooling water channel side end surface of the partition member, and a second support member is provided to face the first magnet and attracts the first magnet. A shear heat generator integrated with a water pump, comprising a magnet. 3. The water pump-integrated shear heat generator according to claim 1, wherein the partition member is provided on an end face on a cooling water channel side outside an outer periphery of the impeller in the same direction as a rotation direction of the impeller. A water-pump-integrated shearing heat generator comprising a plurality of ridges curved in the circumferential direction arranged in a circumferential direction. 4. The shear heat generator integrated with a water pump according to claim 1, wherein the rotor is fixed to an intermediate portion of the drive shaft provided so as to penetrate the heat generating chamber. The impeller is fixed to one end of the drive shaft provided so as to protrude into the cooling water channel from an end surface on the cooling water channel side. 5. The water heater integrated shear heating device according to claim 4, wherein the impeller is made of a material having excellent heat conductivity. 6. The water heater-integrated shearing heat generator according to claim 4, wherein the water channel forming member has a first cylindrical portion extending in a cylindrical direction, and the partition member is provided with the first cylindrical portion. A second tubular portion provided on an inner peripheral side of the first tubular portion and extending in a tubular direction, wherein the cooling water passage is formed by a first tubular portion of the water passage forming member and a second tubular shape of the partition member; A cylindrical water passage extending in the cylindrical direction between the partition member and the outer periphery of the second cylindrical portion of the partition member, which is spirally transmitted along the flow direction of the cooling water in the cylindrical water passage. A water pump-integrated shear heating device characterized by forming heat fins. 7. The water pump-integrated shearing heat generator according to claim 4, wherein a plurality of ridges curved in the same direction as the rotation direction of the impeller are provided on an end surface of the impeller on the partition member side. A shear heat generator integrated with a water pump. 8. The water heater-integrated shear heat generator according to claim 1, wherein said cooling water circuit is configured to return cooling water flowing out of said engine to said engine through said cooling water passage. (1) a circulation circuit, the cooling water flowing out of the engine,
And a second circulation circuit for returning air to the engine through a heating heat exchanger for heating air to heat the interior of the vehicle cabin.