WO1998008699A1 - Dispositif de chauffage visqueux - Google Patents

Dispositif de chauffage visqueux Download PDF

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Publication number
WO1998008699A1
WO1998008699A1 PCT/JP1997/000759 JP9700759W WO9808699A1 WO 1998008699 A1 WO1998008699 A1 WO 1998008699A1 JP 9700759 W JP9700759 W JP 9700759W WO 9808699 A1 WO9808699 A1 WO 9808699A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
viscous heater
heat generating
generating chamber
viscous
Prior art date
Application number
PCT/JP1997/000759
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Ban
Kiyoshi Yagi
Hidefumi Mori
Original Assignee
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP22903496A external-priority patent/JPH09136531A/ja
Application filed by Kabushiki Kaisha Toyoda Jidoshokki Seisakusho filed Critical Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Publication of WO1998008699A1 publication Critical patent/WO1998008699A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V40/00—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies

Definitions

  • the present invention relates to a viscous heater that generates heat by shearing a viscous fluid, exchanges heat with a circulating fluid circulating in a radiating chamber, and uses the circulating fluid as a heating heat source.
  • a viscous heater used in a vehicle heating device has been disclosed in Japanese Patent Application Laid-Open No. 2-248683.
  • the front and rear housings are fastened with through bolts as opposed to each other to form a heat generating chamber inside and a water jacket outside the heat generating chamber.
  • circulating water is taken in from the inlet port and circulated through the outlet port to the outside heating circuit.
  • a drive shaft is rotatably supported on the front housing via a bearing device, and a rotatable rotor is fixed to the deer glaze.
  • the wall surface of the heating chamber and the outer surface of the rotor form a labyrinth groove that is close to each other, and a viscous fluid such as silicon oil is interposed in the gap between the wall surface of the heating chamber and the outer surface of the rotor.
  • the rotor is fixed to the drive shaft. Therefore, during operation, the rotor tilts with respect to the heating chamber or rotates with a dimensional difference from the heating chamber in the axial direction, so that the outer surface of the rotor easily collides with the wall surface of the heating chamber. .
  • the gap between the wall surface of the heating chamber and the outer surface of the rotor is increased to avoid such interference, the viscous fluid is less likely to be sheared, and the amount of heat generated per rotation of the rotor is reduced.
  • An object of the present invention is to provide a viscous heater capable of preventing the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
  • the viscous heater according to claim 1 is provided with a housing that internally forms a heat generating chamber and a ripening chamber that circulates a circulating fluid in contact with the heat generating chamber, and is rotatably supported by the housing via a receiving device.
  • Viscous heater having a viscous fluid
  • an interference preventing means for preventing interference between outer peripheral areas is provided between a wall surface of the heat generating chamber and an outer surface of the rotor.
  • the interference preventing means is provided. The interference between the outer peripheral area of the outer surface of the rotor and the outer peripheral castle of the wall surface of the heat generating chamber is prevented.
  • the gap between the wall surface of the heating chamber and the outer surface of the rotor is reduced to some extent so that the viscous fluid is easily sheared in order to improve the amount of heat generated per rotation of the rotor. Can be.
  • the viscous heater according to claim 2 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a regulating part that is provided in the peripheral region between the two and prevents interference between the peripheral regions by contact.
  • the regulating portion abuts on the inner peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, thereby preventing mutual interference between the outer peripheral regions.
  • the regulation part The contact speed is low, and there is no problem such as seizure due to contact.
  • the viscous heater according to claim 3 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is characterized in that it is a regulating portion provided in the outer peripheral region between the two to prevent interference between the outer peripheral regions by contact.
  • the restricting portion abuts on the outer peripheral wall between the outer surface of the rotor and the wall surface of the heat generating chamber to directly prevent interference between the outer peripheral regions.
  • the viscous heater according to claim 4 is the viscous heater according to claim 2 or 3, wherein the housing is provided with a control room that is communicated with a central area of the power generation room, and the control room is connected to the control room when the capacity is reduced.
  • the movement of the viscous fluid is performed at least by the Weissenberg effect of the viscous fluid, and the regulating portion is divided around the axis.
  • the viscous fluid in the heat generating chamber gathers around the axis against the centrifugal force by being rotated at right angles to the liquid surface if the rotor is kept rotated. Move to the control room when the capacity is reduced by the Weissenberg effect. This Weissenberg effect is believed to be caused by the normal stress effect.
  • the viscous heater in the viscous heater, the viscous fluid in the heat generating chamber ⁇ is collected in the control chamber. At this time, since the regulating part is divided around the wick, the regulating part does not prevent the movement of the viscous fluid. Thus, in this viscous heater, the amount of heat generated between the wall surface of the ift chamber and the outer surface of the rotor is reduced, and heating is weakened.
  • a viscous heater according to a fifth aspect is the viscous heater according to the second, third or fourth aspect, wherein the restricting portion is provided so as to project from a housing forming a heat generating chamber.
  • the restricting portion since the restricting portion protrudes from the housing, it is preferable that the end of the restricting portion that abuts and moves on the outer surface of the heater is preferably smooth or forms a heating chamber. Other parts of the skin, for example, can be left as skin. In this case, processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the amount of heat generated increases.
  • the viscous heater according to claim 6 is the viscous heater according to claim 2, 3 or 4, wherein the regulating portion is made of a self-lubricating material.
  • the outer surface of the rotor comes into contact with the regulating portion made of a self-lubricating material, and the rotor slides smoothly.
  • the other parts forming the heat generating chamber can be left as, for example, a skin, in this case, the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the heat generation amount is increased. Is added.
  • a detent is provided in the restricting portion, whereby the restricting portion can be prevented from rotating together with the rotor.
  • the viscous heater according to claim 7 is the viscous heater according to claim 6, wherein the self-lubricating material is a fluororesin.
  • a viscous heater according to a seventh aspect is an embodiment of the means according to the sixth aspect. The specific operation will be described in detail in the embodiment.
  • the viscous heater according to claim 8 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a play gap formed in the outer peripheral area between them to prevent interference between the outer peripheral areas due to separation.
  • the other in the outer peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, the other is inconsistent with the outline due to play I ⁇ , thereby preventing interference between the outer peripheral regions.
  • the viscous heater according to claim 9 is characterized in that, in the viscous heater according to claim 8, the play gap is recessed in a housing forming a heat generating chamber.
  • the entire wall surface of the heat generating chamber can be left, for example, with a soft surface.
  • the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the calorific value increases.
  • the viscous heater according to claim 10 is the viscous heater according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the rotor cannot rotate relative to the drive shaft and the shaft of the drive shaft. It is characterized by being fitted to the core so as to be tiltable and axially displaceable. In the viscous heater according to claim 10, when the drive shaft is rotated, the rotor is fitted to the drive shaft so as not to be able to rotate relatively. Heating can be performed by ripening by shearing.
  • the viscous heater according to claim 10 even if the rotor is inclined with respect to the heat generating chamber or the rotor has a dimensional difference in the direction of the heat generating chamber due to a belt tension, a tolerance at the time of manufacturing, or the like.
  • the inclination is absorbed by the rotor being fitted to the axis of the drive shaft so as to be tiltable, and the dimensional difference is absorbed by the rotor being fitted to be displaceable in the axial direction. Therefore, the outer peripheral area of the outer surface of the rotor hardly interferes with the outer peripheral area of the wall surface of the heat generating chamber.
  • the wrinkle between the outer surface of the rotor and the wall surface of the heat generating chamber due to the rotor being inclined with respect to the axis of the drive shaft or being displaced in the axial direction is the interference prevention means according to claim 1 to 9. Avoided by
  • the viscous heater according to each of the claims can prevent the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
  • FIG. 1 is a longitudinal sectional view of a viscous light according to the first embodiment.
  • FIG. 2 is an enlarged cross-sectional view of a main part of the viscous heater according to the first embodiment.
  • FIG. 3 is an enlarged cross-sectional view of a main part, relating to a viscous heater of a comparative embodiment.
  • FIG. 4 is a cross-sectional view of a viscous heater according to the second embodiment.
  • FIG. 5 is a cross-sectional view of the viscous heater according to the third embodiment.
  • m6 is an enlarged cross-sectional view of a main part, relating to the viscous heater of Embodiment 3.
  • FIG. 7 is an enlarged plan view of a main part of the viscous heater according to the third embodiment.
  • FIG. 8 is an enlarged plan view of a main part of the viscous heater according to the fourth embodiment.
  • FIG. 9 is an enlarged plan view of a main part of the viscous heater according to the fifth embodiment.
  • FIG. 10 is an enlarged plan view of a main part of the viscous heater according to the sixth embodiment.
  • FIG. 11 is an enlarged plan view of a main part of a viscous heater according to a seventh embodiment.
  • the viscous heater according to the first embodiment embodies claims 1, 2 and 5.
  • a front housing 1, a rear plate 2, and a rear housing main body 3 are respectively laminated between a rear plate 2 and a rear housing main body 3 via a gasket 4. It is fastened with a plurality of through bolts 5 in this state.
  • the rear plate 2 and the rear housing main body 3 constitute a rear housing 6.
  • the recess formed in the rear end face of the front housing 1 forms a heat generating chamber 7 together with the flat front end face of the rear plate 2.
  • the inner peripheral area of the rear housing surface of the front housing 1 forming the heating chamber 7 and the rear plate 2 forming the heating chamber 7 In the inner peripheral area of the front end face of the front end, regulating portions 1a and 2a as stagger prevention means are provided in a ring shape so as to face each other. The ends of the regulating portions 1a and 2a are cut smoothly, or the other portions forming the heat generating chamber 7 remain as skin. Therefore, processing is easy.
  • the rear end face of the rear plate 2 and the inner surface of the rear housing body 3 form a rear water jacket RW as a rear heat radiating chamber in which the heat generating chamber is in contact.
  • a water inlet port 8 for taking in circulating water as a circulating fluid from an external heating circuit (not shown) and a water outlet port (not shown) for sending the circulating water to the heating circuit are formed in an outer region on the rear surface of the rear housing body 3 in contact with the outside.
  • the water inlet port 8 and the water outlet port are connected to the rear water jacket RW.
  • a columnar convex portion 2b is protruded in the center region, and a partition wall 2c extending in a radial direction from the convex portion 2b between the inlet port 8 and the outlet port.
  • a partition wall 2c extending in a radial direction from the convex portion 2b between the inlet port 8 and the outlet port.
  • four fins 2d to 2g extending in an arc shape around the convex portion 2b from the vicinity of the water inlet port 8 to the vicinity of the water outlet port are protruded in the axial direction. .
  • the tips of the projections 2 b, the partition walls 2 c and the fins 2 d to 2 g are in contact with the inner surface of the rear housing body 3.
  • the front housing 1 is provided with a shaft seal I 0 and a bearing device 11 in an instantaneous contact with the heat generating chamber 7, and the drive shaft 12 can rotate through the shaft seal device 10 and the bearing device 11. It is supported by At the rear end of the drive shaft 12, a flat rotor 13 rotatable inside the heat generating chamber 7 is press-fitted. Silicon oil as a viscous fluid is filled in the gap between the wall of the heat generating chamber 7 and the outer surface of the rotor 13. Is interposed. A pulley 15 is fixed to the drive shaft 12 by bolts 14, and the pulley 15 is rotated by a belt by the vehicle engine.
  • the drive shaft 12 is easily rotated by the belt tension in a state where the shaft center 0 is inclined from the ideal axis. Also, due to tolerances during manufacturing, the parallelism between the rotor 13 and the heat generating chamber 7 and the dimension in the shelf direction cannot be perfect. However, in this viscous heater, the regulating portions la and 2a abut against the rotor 13 in the inner peripheral area of the heat generating chamber 7, and the center plane S of the rotor 13 and the center plane S 'of the heat generating chamber 7 almost coincide with each other. .
  • the portion excluding the regulating portions 1a and 2a forming the heat generating chamber 7 remains as skin, the silicon oil is more easily sheared by the rough surface, and the amount of ripening is increased.
  • the center plane S of the rotor 13 is made to be the center plane S 'of the heat generating chamber 7 due to the belt tension and the tolerance at the time of manufacture.
  • the rotor 13 is easily rotated while being inclined, and the rotor 13 has an axial dimensional difference from the heat generating chamber 7. For this reason, in this viscous heater, if the clearance between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is reduced to some extent, the outer surface of the rotor 13 will interfere with the wall surface of the heat generating chamber 7.
  • the viscous heater of the first embodiment can prevent the interference between the outer surface of the rotor 13 and the wall surface of the heat generating chamber 7 while securing a large amount of heat generated per rotation of the rotor 13. Heating capacity and durability can be exhibited.
  • an electromagnetic clutch may be used in place of the pulley 15 to perform the kneading operation of the drive shaft 12.
  • the viscous heater according to the second embodiment is embodied in claims 1, 3, 6, and 7.
  • a ring shape is formed in the outer peripheral area of the rear end face of the front housing 1 forming the heat generating chamber 7 and the outer peripheral area of the front ground of the rear plate 2 forming the heat generating chamber 7.
  • the PTFE regulating portions 20 and 21 are embedded as separate members.
  • the rear ends of the restricting portions 20 and 21 are fixed to the front housing 1 and the rear plate 2, respectively, and the front ends thereof project smoothly in the facing directions.
  • Other parts forming the heating chamber 7 remain as skin.
  • Other configurations are the same as those of the first embodiment.
  • the outer surface of the rotor 13 has a restricting portion made of PTFE.
  • the viscous heater according to the third embodiment is embodied in claims 1, 2, 4, 5, and 10.
  • an outer spline 12 a is formed at the rear end of the drive shaft 12, and the outer spline 12 a is attached to the inner spline 1 of the rotor 13.
  • the rotor 13 cannot rotate relative to the drive shaft 12 and can be displaced in the oblique and axial directions with respect to the shaft center 0 of the drive shaft 12. Mated.
  • regulating portions la and 2a (2a not shown) projecting from the front housing 1 and the rear plate 2 are divided around the axis 0.
  • the rear plate 2 is formed in an annular shape having a communication hole 2 h in the center area, and an annular rib is formed in the inner center area of the rear housing body 3.
  • the diaphragm 4a is integrally provided so as to allow 2 hours, and an adjusting screw 16 provided at the center of the rear housing body 3 can be brought into contact with the rear surface of the diaphragm 4a.
  • a control chamber 17 communicating with the central area of the heating chamber 7 is formed in front of the diaphragm 4a.
  • Other configurations are the same as those of the first embodiment.
  • the calorific value of the display between the wall surface of the heat generating chamber 7 and the outer surface of the roof 13 is reduced, and the heating is weakened.
  • this capacity is reduced, the silicon oil between the front wall surface of the power generation chamber 7 and the front side surface of the rotor 13 is easily collected in the control room 17 through the communication hole 13b.
  • the adjusting screw 16 is screwed in by a desired length, and the diaphragm 4a is displaced forward to reduce the internal volume of the control room 17.
  • This allows The silicone oil in the control room 17 is sent out into the heat generation room 7.
  • the regulation sections la and 2a do not prevent the movement of the silicon oil.
  • the amount of heat generated between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is increased, and heating is enhanced.
  • the silicon oil in the control room 17 is easily sent out between the front wall surface of the heat generation chamber 7 and the front surface of the rotor 13.
  • the capacity control is reliably performed, and it is possible to prevent a decrease in the heat generation efficiency after the durability.
  • the rotor 13 is inclined with respect to the axis 0 or displaced in the axial direction, and the outer peripheral area of the outer surface of the rotor 13 and the outer peripheral area of the wall surface of the heat generating chamber 7
  • the contact is controlled by the silicon oil that remains reliably due to the Diesenberg effect that acts on the central area of the restrictors 1a and 2s and between them.
  • Other functions and effects are the same as those of the first embodiment.
  • the viscous heater of the fourth embodiment of the present invention embodies claims 1 and 2.
  • restricting portions 13c and 13d are protruded from the inner peripheral region of the front and rear end surfaces of the rotor 13.
  • Other configurations are the same as those of the first embodiment.
  • Embodiment 5 embodies claims 1, 2, 6, and 7.
  • regulating portions 18 and 19 are interposed as separate members in the inner peripheral region between the wall surface of the heat generating chamber 7 and the outer surface of the mouthpiece 13.
  • These restricting sections 18 and 19 are made of PTF E because they do not shear silicon oil but prevent interference by abutment and movement.
  • Other configurations are the same as those of the first embodiment.
  • a viscous heater according to a sixth embodiment embodies claims 1, 8 to 10.
  • the rear end face of the front housing 1 forming the heat generating chamber 7 and the front end face of the rear plate 2 forming the heat generating chamber 7 are formed as tapered surfaces 1b and 2i which spread outwardly, so that a clearance is formed in the outer peripheral area between the two. Has formed.
  • Other configurations are the same as those of the third embodiment.
  • the tapered surfaces 1b and 2i are formed on the front housing 1 and the rear plate 2, so that if it is manufactured with high precision, the entire wall surface of the heat generating chamber 7 is left as a skin. I can put it. As a result, the silicon oil is more likely to be sheared by the rough surface, and the calorific value increases. Other functions and effects are the same as those of the third embodiment.
  • the viscous heater according to the seventh embodiment is embodied in claims 1 and 8.
  • the front and rear surfaces of the rotor 13 are formed as inwardly extending taper surfaces 13e and 13f, thereby providing an outer peripheral region between them.
  • the play is formed.
  • Other configurations are the same as in Embodiment 1.

Abstract

L'invention concerne un dispositif de chauffage visqueux avec lequel il est possible d'empêcher l'interférence d'une surface extérieure d'un rotor avec la surface de la paroi d'une chambre de chauffage, tout en conservant une génération adéquate par révolution du rotor. Pour former un tel dispositif de chauffage visqueux, on utilise des parties de restriction (1a, 2a) comme moyens anti-interférences, de façon à constituer une protection annulaire, en sens opposé sur une région circonférentielle intérieure d'une surface extrême arrière d'un boîtier frontal (1) qui définit une chambre de chauffage (7), et sur une région circonférentielle intérieure d'une surface extrême avant d'une plaque arrière (2) qui définit la chambre de chauffage (7). On peut également réaliser lesdits moyens anti-interférences en donnant à la surface extrême arrière du boîtier avant (1), qui définit la chambre de chauffage (7), et à la surface extrême arrière de la plaque arrière (2), qui définit la chambre de chauffage (7), une section qui diverge vers l'extérieur pour former des espaces libres sur les régions circonférentielles extérieures de ces surfaces extrêmes.
PCT/JP1997/000759 1996-08-29 1997-03-11 Dispositif de chauffage visqueux WO1998008699A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8/229034 1996-08-29
JP22903496A JPH09136531A (ja) 1995-09-11 1996-08-29 ビスカスヒータ

Publications (1)

Publication Number Publication Date
WO1998008699A1 true WO1998008699A1 (fr) 1998-03-05

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PCT/JP1997/000759 WO1998008699A1 (fr) 1996-08-29 1997-03-11 Dispositif de chauffage visqueux

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WO (1) WO1998008699A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018640B2 (en) 1995-06-07 2006-03-28 Pfizer Incorporated In ovo vaccination against coccidiosis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246823A (ja) * 1989-03-21 1990-10-02 Aisin Seiki Co Ltd 車両用暖房装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246823A (ja) * 1989-03-21 1990-10-02 Aisin Seiki Co Ltd 車両用暖房装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018640B2 (en) 1995-06-07 2006-03-28 Pfizer Incorporated In ovo vaccination against coccidiosis

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