WO2020056493A1 - Système de chauffage de passage de roue pour véhicule à moteur - Google Patents

Système de chauffage de passage de roue pour véhicule à moteur Download PDF

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Publication number
WO2020056493A1
WO2020056493A1 PCT/CA2019/051291 CA2019051291W WO2020056493A1 WO 2020056493 A1 WO2020056493 A1 WO 2020056493A1 CA 2019051291 W CA2019051291 W CA 2019051291W WO 2020056493 A1 WO2020056493 A1 WO 2020056493A1
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WO
WIPO (PCT)
Prior art keywords
engine
wheel well
heating
heat transfer
conduit
Prior art date
Application number
PCT/CA2019/051291
Other languages
English (en)
Inventor
Halim PAGACZ
Original Assignee
Les Placements A. Pagacz Ltee
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
Application filed by Les Placements A. Pagacz Ltee filed Critical Les Placements A. Pagacz Ltee
Publication of WO2020056493A1 publication Critical patent/WO2020056493A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/62—Other vehicle fittings for cleaning
    • B60S1/66—Other vehicle fittings for cleaning for cleaning vehicle exterior
    • B60S1/68—Other vehicle fittings for cleaning for cleaning vehicle exterior for freeing wheels or tyres from foreign matter, e.g. wheel scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C99/00—Subject matter not provided for in other groups of this subclass
    • B60C99/003—Tyre heating arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/16—Mud-guards or wings; Wheel cover panels
    • B62D25/18—Parts or details thereof, e.g. mudguard flaps

Definitions

  • the technical field generally relates to heating systems for motor vehicles, and more specifically to wheel well heating systems for motor vehicles.
  • Wheeled vehicles usually include a plurality of wheels which are each typically received in a circular recess defined on the sides of the vehicle’s chassis. These recesses, called“wheel wells”, are usually of larger diameter than the wheel, such that a space is created between the sidewalls of the wheel well and the wheel.
  • Some of the proposed systems include electric heating pads disposed in or around the wheel wells. Unfortunately, the cost of the component and electricity derived from mechanical energy are prohibitive.
  • US Patent 6,021 ,843 proposes a snow melting system for a vehicle which includes conduits which are connected to vehicle’s radiator. More specifically, the system includes tubing extending from the vehicle's radiator to the wheel wells in a continuous loop.
  • radiator fluid e.g. antifreeze
  • a wheel well heating system for a motor vehicle, the motor vehicle including a chassis including a plurality of wheel wells, an engine housed in the chassis, the engine including an engine inlet, an engine outlet and an engine inner conduit extending between the engine inlet and the engine outlet, a heat transfer circuit containing heat transfer fluid for cooling the engine and a pump operatively connected to the heat transfer circuit for circulating the heat transfer fluid within the heat transfer circuit, the heat transfer circuit including a heat exchanger in thermal communication with an exterior of the vehicle for cooling heat transfer fluid passing therethrough, a main delivery conduit operatively connected to the heat exchanger and to the engine inlet for providing heat transfer fluid from the heat exchanger to the engine and a main return conduit operatively connected to the engine outlet and to the heat exchanger for allowing heated heat transfer fluid to flow out of the engine and to the heat exchanger, the system comprising: at least one wheel well heating conduit operatively connected to the main return conduit proximal to the engine outlet, each wheel well heating conduit including: a heating portion
  • the system further comprises: a directional valve operatively connecting the at least one wheel well heating conduit to the main return conduit; and a controller operatively connected to the directional valve for selectively moving the directional valve between a wheel well heating position in which heat transfer fluid is directed from the engine towards the corresponding wheel well through the wheel well heating conduit for heating the corresponding wheel well and a normal operating position in which the heated heat transfer fluid is directed from the engine towards the heat exchanger of the vehicle through the main return conduit.
  • the system further comprises a temperature sensor operatively connected to the controller for measuring an exterior temperature, the controller being configured for selectively moving the directional valve to the wheel well heating position if the measured ambient temperature is below a predetermined threshold temperature, and to the normal operating position if the measured exterior temperature is above the predetermined threshold temperature.
  • the system further includes a fluid level sensor operatively connected to the heat exchanger to measure a level of heat transfer fluid in the heat exchanger, the controller being further operatively connected to the fluid level sensor and being configured to prevent movement of the directional valve from the normal operating position to the wheel well heating position when the measured level of heat transfer fluid in the heat exchanger is below a predetermined threshold level.
  • the heating portion is disposed along a wheel well sidewall panel of the chassis delimiting the corresponding wheel well.
  • the heating portion is disposed along an inner face of the wheel well sidewall panel facing away from the wheel well such that heat from the heating portion is provided into the wheel well through the wheel well sidewall panel.
  • the system further comprises a diffusion pad extending between the heating portion and the wheel well sidewall panel, the diffusion pad being made of a thermally conductive material to allow heat from the heating portion to be distributed substantially evenly over the wheel well sidewall panel.
  • the system further comprises an insulating panel extending along an inner surface of the wheel well sidewall panel, the heating portion extending between the wheel well sidewall panel and the insulating panel.
  • the heating portion includes an inlet manifold, an outlet manifold and a plurality of intermediate conduits extending between the inlet and outlet manifolds.
  • all intermediate conduits are spaced radially outwardly from a central axis of the wheel disposed in the wheel well by a common radial distance. In at least one embodiment, the intermediate conduits are distributed evenly along a width of the inner sidewall panel.
  • each intermediate conduit includes a flexible hose.
  • the flexible hose is made of a heat-resistant material.
  • the flexible hose is made of an elastomeric material. In at least one embodiment, the flexible hose is a rubber mesh hose. In at least one embodiment, the heating portion is disposed in a serpentine pattern along the wheel well sidewall panel.
  • the tube segments are disposed in a U-shaped pattern along the wheel well sidewall panel.
  • the at least one heating conduit extends along a gas exhaust pipe of the motor vehicle and is disposed proximal to the gas exhaust pipe so as to be in thermal connection therewith.
  • the heating portion extends into a mud guard of the vehicle extending downwardly from the chassis and located adjacent the wheel well.
  • a motor vehicle comprising: a chassis including a plurality of wheel wells for receiving wheels; an engine housed in the chassis, the engine including an engine cooling inlet, an engine cooling outlet and an engine inner cooling conduit extending between the engine cooling inlet and the engine cooling outlet; a heat transfer circuit operatively coupled to the engine and containing heat transfer fluid for cooling the engine, the heat transfer circuit including: a heat exchanger in thermal communication with an exterior of the vehicle for cooling heat transfer fluid passing therethrough; a main delivery conduit operatively connected to the heat exchanger and to the engine inlet for providing heat transfer fluid from the heat exchanger to the engine; and a main return conduit operatively connected to the engine outlet and to the heat exchanger for allowing heated heat transfer fluid to flow out of the engine and to the heat exchanger; a pump operatively connected to the heat transfer circuit for circulating the heat transfer fluid within the heat transfer circuit; a wheel well heating system for heating at least one of the plurality of wheel wells, the wheel well heating system including: at least one heating
  • the heat exchanger includes a radiator.
  • the at least one heating conduit includes first and second heating conduits, the heating portion of the first heating conduit being disposed in a first wheel well to heat the first wheel well and the heating portion of the second heating conduit being disposed in a second wheel well to heat the second wheel well.
  • a motor vehicle comprising: a chassis including a plurality of wheel wells for receiving wheels; an engine housed in the chassis, the engine including an engine cooling inlet, an engine cooling outlet and an engine inner cooling conduit extending between the engine cooling inlet and the engine cooling outlet; a heat exchanger mounted to the chassis, the heat exchanger being in thermal communication with an exterior of the vehicle; a plurality of conduits operatively connecting the engine to the heat exchanger for allowing circulation of heat transfer fluid between the engine and the heat exchanger, the plurality of conduits including a main delivery conduit for providing heat transfer fluid from the heat exchanger to the engine and a main return conduit for carrying heated heat transfer fluid from the engine to the heat exchanger; a wheel well heating conduit operatively coupled to the main return conduit, the wheel well heating conduit including a heating portion located in a corresponding wheel well; and a directional valve operatively coupling the heat transfer circuit to the wheel well heating portion, the directional valve being movable between a wheel well heating position in which heat transfer fluid
  • the vehicle further comprises a controller operatively connected to the directional valve for selectively moving the directional valve between a wheel well heating position in which heat transfer fluid is directed from the engine towards the corresponding wheel well through the wheel well heating conduit for heating the corresponding wheel well and a normal operating position in which the heated heat transfer fluid is directed from the engine towards the heat exchanger of the vehicle through the main return conduit.
  • the vehicle further comprises a temperature sensor operatively connected to the controller for measuring an exterior temperature, the controller being configured for selectively moving the directional valve to the wheel well heating position if the measured ambient temperature is below a predetermined threshold temperature, and to the normal operating position if the measured exterior temperature is above the predetermined threshold temperature.
  • the vehicle further includes a fluid level sensor operatively connected to the heat exchanger to measure a level of heat transfer fluid in the heat exchanger, the controller being further operatively connected to the fluid level sensor and being configured to prevent movement of the directional valve from the normal operating position to the wheel well heating position when the measured level of heat transfer fluid in the heat exchanger is below a predetermined threshold level.
  • FIG. 1 is a top left perspective view of a front portion of a motor vehicle and of a wheel well heating system mounted in the motor vehicle, in accordance with one embodiment, with the motor vehicle being shown in transparency to better show the wheel well heating system;
  • FIG. 2 is a top right perspective view of the front portion of the motor vehicle with the wheel well heating system illustrated in FIG. 1 ;
  • FIG. 3 is a left cross-sectional view of the front portion of the motor vehicle with the wheel well heating system illustrated in FIG. 1 ;
  • FIG. 4 is a fluid circuit diagram of the wheel well heating system illustrated in FIG.
  • FIG. 5 is an exploded perspective view of a heat providing assembly for the heating system illustrated in FIG. 1 , in accordance with one embodiment
  • FIG. 6 is a left cross-sectional view of a wheel well and of a heat providing assembly of the wheel well heating system illustrated in FIG. 1 , in accordance with one embodiment, with the heat providing assembly mounted in the wheel well and extending into a mud guard of the vehicle; and
  • FIG. 7 is an enlarged portion of the wheel well illustrated in FIG. 6.
  • FIGS. 1 to 4 there is provided a wheel well heating system 100 for a motor vehicle 10, in accordance with one embodiment.
  • the vehicle 10 includes a chassis 12 and a plurality of wheels 14 rotatably connected to the chassis 12.
  • chassis refers to the combination of the base support structure of the vehicle and the“body” or“bodywork” of the vehicle which is integrally formed with the base support structure or, alternatively, may be secured to the base support structure.
  • the wheels 14 are recessed into the chassis 12 in either sides of the vehicle 10.
  • the chassis 12 includes a plurality of wheel wells 16 defined generally on the sides of the chassis 12.
  • Each wheel well 16 is sized and shaped to receive a corresponding wheel 14. More specifically, each wheel well 16 is generally semi-circular and is delimited by a curved wheel well sidewall panel 200, best shown in FIG. 5.
  • Each wheel well 16 further has a diameter which is larger than the corresponding wheel 16 such that the wheel well sidewall panel 200 is spaced radially outwardly from the wheel 16.
  • the wheel well sidewall panel 200 includes a generally rectangular piece of material which has been formed to a desired curvature.
  • the wheel well sidewall panel 200 includes an outer face 201 which faces generally downwardly towards the wheel 14 and an inner face 203 disposed opposite the outer face 201.
  • the wheel well sidewall panel 200 is shown in FIG. 5 as a distinct component which may be secured to the chassis 12, the wheel well sidewall panel 200 could instead define a portion of the chassis 12 which is integrally formed with the rest of the chassis 12. Moreover, in the illustrated embodiment, the outer and inner faces 201 , 203 of the wheel well sidewall panel 200 are generally parallel to each other but alternatively, the wheel well sidewall panel 200 could have any other configuration. Still referring to FIGS. 1 to 4, the vehicle 10 further includes an engine 102 housed in the chassis 12 and operatively connected to the wheels 14 for powering the wheels 14. It will be understood that the engine 102 generally emits heat as it generates power. Therefore, the vehicle 10 further includes a heat transfer circuit 104 operatively connected to the engine 102 and containing heat transfer fluid for drawing heat from the engine 102 and thereby cooling the engine 102.
  • the engine 102 includes an engine block 103 in which are defined an engine inlet 106, an engine outlet 108 and an engine inner conduit 109 extending between the engine inlet 106 and the engine outlet 108.
  • the heat transfer circuit 104 further includes a heat exchanger, and more specifically a radiator 110, disposed within the chassis, remotely from the engine 102, as well as main delivery and return conduits 112, 114 operatively connecting the radiator 110 to the engine 102 to allow heat transfer fluid to be circulated between the engine 102 and the radiator 110.
  • the main delivery conduit 112 is adapted to connect a radiator outlet 118 of the radiator 110 to the engine inlet 106 of the engine 102
  • the main return conduit 114 is adapted to connect the engine outlet 108 of the engine 102 to a radiator inlet 116 of the radiator 110.
  • the vehicle 10 further includes a pump 120, best shown in FIG. 4, operatively connected to the heat transfer circuit 104 for circulating the heat transfer fluid through the heat transfer circuit 104.
  • the pump 120 is operatively connected to the main delivery conduit 1 12 and to the engine inner conduit 109.
  • the pump 120 could instead be operatively connected to the main return conduit 1 14 or to the radiator 1 10.
  • the heat transfer circuit 104 further includes a thermostatic valve 122 disposed at the engine outlet 108 for selectively allowing and preventing fluid from exiting the engine inner conduit 109 through the engine outlet 108.
  • a thermostatic valve 122 disposed at the engine outlet 108 for selectively allowing and preventing fluid from exiting the engine inner conduit 109 through the engine outlet 108.
  • the thermostatic valve 122 may prevent the heat transfer fluid from exiting the engine inner conduit 109, and then allow the heated fluid to exit the engine inner conduit 109 through the engine outlet 108 and enter the main return conduit 1 14 when the thermostatic valve 122 detects that the engine 102 is at an upper boundary of the engine’s operating temperature range.
  • heat transfer fluid flows through the main delivery conduit 1 12 towards the engine 102 and enters the engine inner conduit 109 through the engine inlet 106 and the pump 120.
  • the heat transfer fluid may be mixed or blended with heat transfer fluid already present in the engine inner conduit 109 and be circulated within the engine inner conduit 109 to further draw heat from the engine 102.
  • the thermostatic valve 122 when the thermostatic valve 122 is open, the heat transfer fluid exits the engine inner conduit 109 through the engine outlet 108 to enter the main return conduit 1 14. It will be understood that the temperature of the heat transfer fluid exiting the engine inner conduit 109 is therefore higher than the temperature of the heat transfer fluid entering the engine inner conduit 109.
  • the heated heat transfer fluid then flows through the main return conduit 1 14 to the radiator 1 10 and into the radiator 1 10 through the radiator inlet 1 16.
  • the radiator 110 is in thermal communication with an exterior of the vehicle such that ambient air draws heat from the heat transfer fluid and thereby cools the heat transfer fluid as it passes through the radiator 110 to exit through the radiator outlet 118. It will therefore be understood that the temperature of the heat transfer fluid exiting the radiator 1 1 0 is therefore lower than the temperature of the heat transfer fluid entering the radiator 110.
  • the heat transfer fluid is then directed back towards the engine 102 through the main delivery conduit 112 and flows again into the engine inner conduit 109 through the engine inlet 106 and through the pump 120.
  • the heating system 100 further includes a first wheel well heating circuit 124a for heating a first wheel well 16a and a second wheel well heating circuit 124b for heating a second wheel well 16b.
  • Each wheel well heating circuit 124a, 124b is operatively connected to the heat transfer circuit 104 to allow heated heat transfer fluid exiting the engine 102 to be directed towards the wheel well 16.
  • each wheel well heating circuit 124a, 124b include a heating conduit 126 having a heating portion 128 located in the corresponding wheel well to heat the wheel well, a dispensing portion 130 extending between the main return conduit 114 and the heating portion 128 for providing heated heat transfer fluid to the heating portion 128 and a return portion 132 extending between the heating portion 128 and the main return conduit 114 for returning heat transfer fluid from the heating portion 128 into the main return conduit 114.
  • the heating system 100 further includes a first directional valve 134 operatively connected to the main return conduit 114 and the dispensing portion 130 of the wheel well heating circuits 124a, 124b to selectively direct the heated heat transfer fluid flowing from the engine 102 outlet towards the wheel well through the dispensing portion 130 and towards the radiator 110 through the main return conduit 114.
  • the first directional valve 134 may be located substantially proximal to the engine outlet 108 such that the heated heat transfer fluid directed by the first directional valve 134 into the heating conduit 126 has a substantially high temperature to efficiently heat the wheel wells and detach and/or thaw the ice and/or snow accumulated between the wheel well sidewall panel 200 and the wheel.
  • the heat transfer circuit 104 further includes a second directional valve 136 operatively connected to the main return conduit 114, downstream of the first directional valve 134, and to the return portion 132 of the heating conduit 126 for returning the heat transfer fluid from the heating conduit 126 and the heat transfer fluid from the engine outlet 108 into the main return conduit 114 to be further cooled by the radiator 110.
  • both the first and second directional valves 134, 136 are three-way directional servo valves.
  • one or both of the first and second directional valves 134, 136 could instead include another type of valve or even a combination of valves which would allow the heat transfer fluid to be selectively directed as desired or required.
  • the heating portion 128 of the heating conduit 126 includes a heat providing assembly 138 located in the wheel well. More specifically, the heat providing assembly 138 includes an inlet manifold or distributor 140, an outlet manifold or collector 142 and a plurality of intermediate conduits 144 extending between the distributor 140 and the collector 142.
  • the intermediate conduits 144 are generally disposed in contact with or proximal to the wheel well sidewall panel 200 of the wheel well 16 and provide heat to the wheel well sidewall panel 200. As best shown in FIG. 3, the intermediate conduits 144 may be disposed directly against the inner face 203 of the wheel well sidewall panel 200 so as to provide heat to the wheel well sidewall panel 200 by conduction.
  • the intermediate conduits 144 are spaced apart from each other axially relative to an axis A of the wheel 14 and are generally distributed along a width W of the wheel well sidewall panel 200 to substantially provide heat to the entire wheel well sidewall panel 200. All of the intermediate conduits 144 are therefore spaced radially from the axis A of the wheel 14 by substantially the same radial distance R. Alternatively, the intermediate conduits 144 may not all be spaced from the axis A of the wheel 14 by the same radial distance R and could instead be disposed according to another configuration.
  • the intermediate conduits 144 include flexible hoses.
  • each hose may be made from a heat-resistant material, and more specifically from an elastomeric material such as rubber mesh hoses.
  • the intermediate conduits 144 could be made from a different material.
  • FIG. 5 there is shown a heat providing assembly 138’ for the wheel well heating system 100, in accordance with an embodiment.
  • the heat providing assembly 138 further includes a diffusion pad 202 disposed between the intermediate conduits 144 and the wheel well sidewall panel 200.
  • the diffusion pad 202 may have a width which generally corresponds to the width W of the wheel well sidewall panel 200 and may be made of a thermally-conductive material to further distribute the heat from the intermediate conduits 144 substantially evenly along the wheel well sidewall panel 200.
  • the heat providing assembly 138’ further includes an insulation panel 204 disposed over the intermediate conduits 144. More specifically, the intermediate conduits 144 are sandwiched between the diffusion pad 202 and the insulation panel 204.
  • the heat providing assembly 138’ may not include an insulation panel 204.
  • the dispensing portion 130, the heating portion 128 and the return portion 132 of the heating conduit 126 may all be integrally formed to define a single, continuous conduit.
  • the heating portion 128 may be generally disposed in a serpentine pattern on the wheel well sidewall panel 200 to substantially maximize the area of contact between the heating portion 128 and the wheel well sidewall panel 200.
  • the heating portion 128 may be disposed in a U-shaped pattern or in any other pattern which a skilled person would consider to be appropriate.
  • the heating portion 128 of the heating conduit 126 may not be disposed against the wheel well sidewall panel 200, but may instead be disposed against another portion of the chassis 12 around the wheel well 16, or may extend within the wheel well 16 into the space between the wheel well sidewall panel 200 and the wheel 14.
  • the heat providing assembly 300 includes a distributor 302, a collector 304 and a plurality of intermediate conduits 306 extending between the distributor 302 and the collector 304.
  • the intermediate conduits 306 extend along the wheel well sidewall panel 200 and further into a mud guard 350 extending downwardly from the chassis 12, adjacent the wheel well 16.
  • the mud guard 350 is hollow and defines an inner mud guard cavity 352 which is sized and shaped to receive a portion of the intermediate conduits 306.
  • the heat providing assembly 300 therefore further allows heat to be provided to the mud guard 350 to detach and/or thaw ice and/or snow accumulated on the mud guard 350.
  • the mud guard 350 may also provide further provide heat through convection and/or radiation into the wheel well 16. Referring back to FIGS.
  • the heating system 100 further includes a controller 150, such as an engine control module or ECM of the vehicle, which is operatively connected to the first and second directional valves 134, 136 to selectively actuate the first and second directional valves 134, 136 in order to direct the fluid towards the wheel well 16 and/or towards the radiator 110.
  • a controller 150 such as an engine control module or ECM of the vehicle, which is operatively connected to the first and second directional valves 134, 136 to selectively actuate the first and second directional valves 134, 136 in order to direct the fluid towards the wheel well 16 and/or towards the radiator 110.
  • the heating system 100 further includes a temperature sensor 152 located on or outside of the chassis 12 to measure the exterior temperature.
  • the controller 150 may be operatively connected to the temperature sensor 152 to direct the heat transfer fluid towards one of the radiator 110 or the wheel well 16 depending on the measured exterior temperature.
  • the heating system 100 may be operated in one of a normal operating mode or“summer mode” and a wheel well heating mode or“winter mode”.
  • the normal operating mode the heated heat transfer fluid from the engine 102 is directed directly towards the radiator 110 through the main return conduit 114, without passing through the heating conduit 126.
  • the heating mode the heated fluid is directed using the first directional valve 134 from the engine 102 towards the wheel well through the heating conduit 126.
  • the controller 150 is configured to operate the system 100 in the normal operating mode if the measured temperature is above a predetermined threshold temperature, and in the heating mode if the measured temperature is below the predetermined threshold temperature.
  • the heating system 100 may further selectively be operated in an intermediate mode in which a portion of the heated heat transfer fluid is directed towards the radiator 110 and a portion of the heated heat transfer fluid is directed towards the wheel well.
  • the heating system 100 may not include the temperature sensor 152 and may instead be activated manually by the user or according to one or more preprogrammed parameters.
  • the heating system 100 further includes a fluid level sensor 154 operatively connected to the radiator 110 to measure a level of heat transfer fluid in the radiator 110.
  • the controller 150 is further operatively connected to the fluid level sensor 154 and prevents the first directional valve 134 from directing heat transfer fluid into the heating conduit 126 when the measured level of heat transfer fluid in the radiator 110 is below a predetermined threshold level. Therefore, if the level of heat transfer fluid within the heat transfer circuit 104 is reduced below the predetermined threshold level or“critical” level, the heat transfer fluid will no longer be employed for heating the wheel well 16 and will be solely used for the purpose of cooling the engine 102.
  • the heating system 100 further includes an engine high temperature sensor 156 operatively connected to the engine 102 to measure a temperature of the engine 102.
  • the controller 150 is further operatively connected to the engine high temperature sensor 156 and is configured to prevent the first directional valve 134 from directing heat transfer fluid into the heating conduit 126 when the measured temperature of the engine 102 is equal to or above a predetermined maximum threshold temperature. In this case, the heat transfer fluid will no longer be employed for heating the wheel well 16 and will be solely used for the purpose of cooling the engine 102.
  • the heating system 100 further includes one or more bleed valves to facilitate the installation and/or maintenance of the system. It will be appreciated that the system 100 described above may allow heat to be provided to the wheel wells without requiring any additional heating mechanism, i.e. by using solely heat which is in any case generated during normal operation of the engine 102.
  • the provision of heat to the wheel wells is optimized by connecting the heating conduit 126 to the main return conduit 114 near the engine outlet 108, which corresponds to one of the locations in the heat transfer circuit 104 where the heat transfer fluid has the highest temperature.
  • the above system 100 may be relatively easily installed on an existing heat transfer circuit of a vehicle. It will further be appreciated that while the heating system 100 is illustrated with two wheel well heating circuits 124a, 124b for heating two wheel wells of the vehicle, the system 100 could instead include only one wheel well heating circuit or more than two wheel well heating circuits, each heating circuit being in parallel to each other, or two or more heating circuits being connected end-to-end in series with each other.
  • the engine 102 as described hereinabove defines a heat source which provides heat to the heat transfer fluid.
  • the engine 102 includes a combustion engine which provides a relatively large amount of heat as it produces power.
  • heat could instead be provided to the heat transfer circuit 104 from another heat source such as one or more battery of an electric vehicle. It will however be appreciated that in some circumstances, the battery may perform better when above a certain temperature and therefore, it may not be desirable to further draw heat from the battery when the battery is operated in relatively cold ambient temperature.
  • the wheel well 16 heated by the heating conduit 126 could include a rear wheel well of the vehicle, and the heating conduit 126 could extend along a gas exhaust pipe of the vehicle and be disposed proximal to the gas exhaust pipe so as to be in thermal connection with the gas exhaust pipe.
  • the heating conduit 126 may be wrapped around the gas exhaust pipe to contact the gas exhaust pipe to thereby draw further heat from the gas exhaust pipe and provide additional heat to the wheel well.
  • the heating conduit 126 may be made of a suitable material selected so as to allow or even optimize heat transfer between the heat transfer fluid circulating in the heating conduit 126 and the gas exhaust pipe.
  • the heating conduit 126 could instead be used to heat a front wheel well of the vehicle, or to heat both front and rear wheel wells of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un système de chauffage de passage de roue pour un véhicule à moteur comprenant une pluralité de passages de roue, un moteur comprenant une entrée et une sortie de moteur, un circuit de transfert de chaleur comprenant un échangeur de chaleur et une pompe, un conduit de distribution principal pour fournir un fluide de transfert de chaleur de l'échangeur de chaleur au moteur et un conduit de retour principal pour permettre au fluide de transfert de chaleur chauffé de s'écouler depuis le moteur et vers l'échangeur de chaleur, le système comprenant : au moins un conduit de chauffage de passage de roue fonctionnellement raccordé au conduit de retour principal, comprenant : une partie de chauffage située dans un passage de roue correspondant ; une partie de distribution s'étendant entre le conduit de retour principal et la partie de chauffage pour fournir un fluide de transfert de chaleur chauffé pour chauffer le passage de roue correspondant ; et une partie de retour s'étendant entre la partie de chauffage et le conduit de retour principal pour renvoyer le fluide de transfert de chaleur de la partie de chauffage dans le conduit de retour principal.
PCT/CA2019/051291 2018-09-18 2019-09-12 Système de chauffage de passage de roue pour véhicule à moteur WO2020056493A1 (fr)

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US201862732645P 2018-09-18 2018-09-18
US62/732,645 2018-09-18

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