KR20100092629A

KR20100092629A - Heating system for car

Info

Publication number: KR20100092629A
Application number: KR1020090011843A
Authority: KR
Inventors: 한봉천
Original assignee: 마노자동차(주)
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2010-08-23

Abstract

PURPOSE: A heating system for a vehicle is provided to heat the indoor space of a vehicle within a short time before the engine of the vehicle is preheated. CONSTITUTION: A heating system for a vehicle comprises a cooling water pipe, a multi heater(100), an input unit(10), water pumps(50,60), and an ECU(Electronic Control Unit)(90). The cooling water pipe circulates via an engine(20), a heater core and a radiator(30). The multi heater is installed between the engine and the heater core and selectively heats the cooling water and the air. The operating mode of the multi heater is input through the input unit. The water pump supplies the cooling water to the multi heater so that the cooling water passing through the engine is provided to the heater core via the multi heater. According to the operating mode input through the input unit, the ECU controls the operation of the water pump and the multi heater.

Description

Automotive heating system {HEATING SYSTEM FOR CAR}

The present invention relates to a heating system for automobiles, and more particularly to a heating system for automobiles including a multi-heater for implementing the functions of the pre-heater and the air heater at the same time.

The heating system of the car is used to provide a comfortable indoor environment for the occupants of the vehicle in winter. Typical heating systems are implemented with coolant circulating in engines heated to high temperatures. That is, when the coolant circulates around the engine heated to 300 ° C or higher, the coolant rises to 100 ° C or higher through heat exchange. The heat of the coolant whose temperature is raised is moved to the inside of the vehicle through the heater core to heat the room.

However, if the engine is turned off for a long time in winter, it takes a certain time for the engine to warm up. During this time the engine will be cold started. If the cold start time is prolonged, it may affect the durability of the engine and may shorten the life of the engine.

In addition, since the inside of the car is not heated until the engine is preheated, there is an inconvenience in that the occupant is exposed to the cold. In order to alleviate this inconvenience for passengers, pre-heaters or air heaters have been developed that are heated before the engine is preheated to heat the interior of the car, but since they exist independently, the configuration is complicated and the two are driven separately. There was a problem to increase.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and an object of the present invention is to provide a heating system for an automobile including a multi heater capable of simultaneously implementing a preheater and an air heater.

In addition, another object of the present invention is to provide a heating system for a vehicle including a multi-heater for a vehicle, which can reduce the cold start of the vehicle and extend the service life of the vehicle.

One aspect of the present invention for achieving the above technical problem relates to a heating system for automobiles. The heating system of the present invention comprises: a cooling water pipe configured to circulate through an engine, a heater core, and a radiator; A multi heater provided between the engine and the heater core to selectively heat cooling water and air; A user input unit configured to receive an operation mode of the multi heater; A water pump for supplying cooling water to the multi heater such that the cooling water via the engine is supplied to the heater core via the multi heater; And an ECU for controlling the driving of the multi-heater and the water pump according to the operation mode input through the user input unit.

Here, the operation mode may be any one of the power OFF of the multi-heater, heating only the cooling water, heating only the air, and simultaneously heating the cooling water and the air.

Here, the battery for supplying power to the multi-heater; It may further include a fuel pump for supplying fuel to the multi-heater.

The multi-heater may include a casing in which air inlets and outlets are formed; A combustion chamber provided inside the casing and burning heat to generate heat; A water jacket portion disposed in an edge region of the combustion chamber and having a cooling water flow path configured to flow and exchange heat of the cooling water by the heat of the combustion chamber; The air jacket may be provided between the casing and the water jacket to form an air flow path through which air introduced into the casing receives heat from the water jacket.

Here, the water jacket portion and the air jacket portion may be provided integrally.

The water jacket unit includes a plurality of heat transfer fins for transferring heat generated from the combustion chamber to the cooling water.

The air jacket unit may include a plurality of heat dissipation fins for dissipating heat transferred from the water jacket unit to the outside.

According to the heating system of the present invention, since the water jacket in which the cooling water flows and the air jacket in which the indoor air flows are provided at the same time in the heater housing, the cooling water and the indoor air are cooled by the heat generated in one combustion unit. Can be heat exchanged together. This makes it possible to heat the inside of the vehicle quickly before the engine of the vehicle is preheated.

In addition, since the cooling water and the indoor air are exchanged together through one combustion unit, fuel consumption may be reduced.

In addition, when the preheater is used, the cold start time of the engine can be shortened, thereby extending the service life of the vehicle engine.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 and 2 are perspective views showing the external appearance of the multi-heater 100 for automobiles according to the present invention, respectively, from left and right sides, and FIGS. Exploded perspective view.

Automotive multi-heater 100 according to the present invention is provided in the casing 110, the casing 110, the combustion unit 120 and the combustion unit 120 to generate heat by burning the fuel in the combustion chamber A heater housing 130 which transfers the generated heat to the cooling water and the air, a driving unit 140 which drives the outside air into the casing and drives the fans 143 and 144 which discharge the exhaust gas burned in the combustion chamber to the outside; And a controller 150 for driving the combustion unit 120 and the driving unit 140 according to a user input.

The casing 110 protects the combustion unit 120 and the heater housing 130 accommodated therein from external shocks, and the inlet through which the indoor air A is introduced and the heating air A ′ heated inside the casing 110. Forms an outlet through which it is discharged. The casing 110 may be provided with upper and lower cases 111a and 111b and left and right cases 113a and 113b to facilitate assembly, as shown in FIGS. 1 and 2. The upper case 111a and the lower case 111b cover the heater housing 130 up and down. The lower case 111b includes a combustion gas suction pipe 146 for supplying combustion gas to the combustion chamber 124 and a first gas passage for exposing the combustion gas discharge pipe 132d through which the combustion gas combusted in the combustion chamber 124 is exhausted to the outside. 116 is formed. As illustrated in FIGS. 1 and 2, the combustion gas suction pipe 146, the combustion gas discharge pipe 132d, and the fuel supply pipe 127 are exposed to the outside through the first through hole 116. In addition, the upper case 111a and the lower case 111b allow the coolant inlet 133c and the coolant outlet 133d to which the coolant pipe W (see FIG. 12) connected through the engine are exposed.

The left case 113a and the right case 113b are provided with an indoor air suction port 114 and a heating air discharge port 115 through which air for heating the car is introduced and discharged, respectively.

5 and 6 are perspective views showing the configuration of the combustion unit 120 of the present invention. As shown, the combustion unit 120 according to the present invention is accommodated in the heater housing 130 to generate heat. The combustion unit 120 includes a first case 121 coupled to the heater housing 130 to be described later, an ignition device 121a provided in the first case 121, a combustion chamber 124 in which combustion occurs, A second case 123 and a third case 125 covering the combustion chamber 124 and a fuel supply pipe 127 for supplying fuel to the combustion chamber 124 are included. The ignition apparatus 121a may be any one of an adsorption type ignition method, a gasoline ignition method, and a diesel ignition method. Among these, the ignition apparatus 121a according to the preferred embodiment of the present invention uses an adsorption type ignition method with a relatively small amount of fuel consumption.

The first case 121 is coupled to the heater housing 130 and supplies the fuel supplied through the fuel supply pipe 127 to the combustion chamber 124. The first case 121, the second case 123, and the third case 125 surround the combustion chamber 124 to shield the flame so that the flame generated in the combustion chamber 124 does not contact the heater housing 130. The heat generated in the combustion chamber 124 is transferred to the heater housing 130. The combustion unit 120 according to the present invention is implemented with three cases 121, 123, and 125, but the number thereof may be increased according to the size and ignition method of the combustion chamber 124.

The combustion chamber 124 is accommodated in the second case 123 and the third case 125 and the combustion air B sucked by the combustion air intake fan 144 is combusted by the ignition apparatus 121a. . The combustion chamber 124 has a discharge port 124a is formed on the surface as shown in FIG. The discharge port 124a is provided to minimize soot on the surface and to increase the heat transfer rate to the heater housing 130.

The fuel supply pipe 127 is connected to the fuel pump 70 of the vehicle, and when the power is supplied to the multi heater 100, the fuel supply pipe 127 receives fuel from the controller 150 and supplies the fuel to the combustion chamber 124.

4 to 7 are exploded perspective views showing the configuration of the heater housing 130 according to the present invention. As shown, the heater housing 130 is provided inside the casing 110 to form a path through which the coolant or indoor air flows into the casing 110, and the coolant and the indoor air are heat-exchanged by the heat generated by the combustion unit 120. Be sure to The heater housing 130 is provided with a housing cover 131 which is coupled to the driving unit 140 and one side of the housing cover 131 and accommodates the combustion unit 120 therein, and a cooling water flow path in which cooling water flows outward. A water jacket 132 forming the water jacket 132 and an air jacket 133 formed to surround the water jacket 132 and forming a flow path through which the indoor air A flows between the casing 110. Include.

As shown in FIG. 4, the housing cover 131 is provided between the driving unit 140 and the water jacket 132 to shield the heat generated from the combustion unit 120 to prevent the driving unit 140 from being damaged.

The water jacket 132 accommodates the combustion unit 120 therein and allows the cooling water C to be heated by the heat generated by the combustion unit 120. The water jacket 132 is formed in the water jacket body 132a for accommodating the combustion unit 120 and spirally protruding from the outer surface of the water jacket body 132a to form a cooling water flow path 132f through which cooling water flows. Flow ribs 132b and heat transfer fins 132c protruding from the inner surface of the water jacket body 132a to transfer the heat of the combustion unit 120 to the water jacket body 132a and the combustion unit 120. An exhaust gas discharge pipe 132d for discharging the combusted exhaust gas and a combustion gas suction pipe accommodation hole 132e in which the combustion gas suction pipe 146 for sucking the combustion gas is accommodated.

The water jacket body 132a forms a receiving space in which the inside is closed and accommodates the combustion unit 120. The flow rib 132b protrudes from the water jacket body 132a to form a cooling water flow path 132f. As shown in FIG. 8, the flow rib 132b is provided to be in contact with the air jacket 133, and a cooling water flow path 132f is formed between neighboring flow ribs 132b. The cooling water flow path 132f is formed spirally so that the cooling water flows between the cooling water supply pipe 133c and the cooling water discharge pipe 133d. The cooling water flows through the spiral cooling water flow path 132f and the temperature is increased through heat exchange with the water jacket body 132a heated by the heat transferred from the combustion unit 120. Here, the cooling water supply pipe 133c and the cooling water discharge pipe 133d are preferably provided at different heights to increase the flow path of the cooling water. The cooling water supply pipe 133c is supplied with the cooling water via the engine 20 (see FIG. 11), and the cooling water discharge pipe 133d receives the cooling water whose temperature is increased through heat exchange with the water jacket 132, and the heater core (H, FIG. 11). See page 12).

The heat transfer fins 132c are protruded at predetermined intervals on the inner wall surface of the water jacket body 132a to receive heat from the second case 123 and the third case 125 of the combustion unit 120. The heat transferred by the heat transfer fins 132c heats the water jacket body 132a, and the water jacket body 132a exchanges heat with the cooling water.

The air jacket 133 is provided between the water jacket 132 and the casing 110 and discharges heat transferred from the water jacket 132 to the outside. At this time, the indoor air (A) introduced into the casing 110 flows into the space between the water jacket 132 and the casing 110 and absorbs the heat emitted by the water jacket 132 while the temperature is raised. It is discharged to the casing 110 outside.

The air jacket 133 has a plurality of air jacket bodies 133a accommodating the water jacket 132 therein, and a plurality of air jackets 133 protruding outward from the air jacket body 133a to discharge heat from the water jacket 132 to the outside. It includes a heat radiation fin (133b). In addition, the air jacket 133 is provided with the cooling water supply pipe 133c for supplying the cooling water C to the cooling water flow path 132f and the cooling water discharge pipe 133d for discharging the cooling water having the elevated temperature.

Here, the water jacket 132 and the air jacket 133 is preferably made of a good heat transfer rate material. In addition, the water jacket 132 and the air jacket 133 are preferably provided integrally with each other to increase the heat transfer rate.

The heating air A 'whose temperature is raised via the air jacket 133 is discharged to the duct D (see FIG. 12) provided inside the vehicle through the heating air outlet 115.

9 is a perspective view showing the configuration of the drive unit 140. As shown, the driving unit 140 is coupled to one side of the heater housing 130 to supply the indoor air A and the combustion air B to the heater housing 130. The driving unit 140 is provided in front of the driving motor 142 for generating the driving force, the support frame 141 for supporting the driving motor 142, and the driving motor 142, and casing 110 for the indoor air A. It includes an indoor air intake fan 143 for sucking inside, and a combustion air intake exhaust fan 144 provided at the rear of the drive motor 142 to suck and discharge combustion air and exhaust gas.

The driving motor 142 receives power from the battery 80 of the vehicle and is driven according to the control signal of the controller 150. The indoor air intake fan 143 and the combustion air intake exhaust fan 144 are coupled to the drive shaft of the drive motor 142. The indoor air intake fan 143 sucks external air and discharges the heating air A 'whose temperature is increased inside the casing 110 to the outside. The combustion air intake and exhaust fan 144 sucks the combustion air B to be supplied to the combustion chamber 124, and discharges the exhaust gas B ′ having completed combustion from the combustion chamber 124 to the outside. One side of the combustion air intake exhaust fan 144 is provided with a combustion gas suction pipe 146 through which the combustion air (B) is inhaled.

The controller 150 controls the operation of the multi-heater 100 and whether the driving motor 142 is driven. The controller 150 controls whether the multi heater 100 is operated according to the temperature of the engine 20. That is, the controller 150 senses the temperature of the engine 20 when a predetermined time elapses after the multi-heater 100 is driven in a state where the engine 20 is not preheated in winter. If the detected temperature of the engine 20 is equal to or higher than the reference temperature, the driving of the multi-heater 100 is stopped. The controller 150 may be implemented through the control board 145 provided on one side of the driving unit 140.

An operation process of the multi-heater 100 for a vehicle according to the present invention having such a configuration will be described with reference to FIG. 10.

When the user inputs the operation of the multi-heater 100 through the user input unit (to be described later), the controller 150 causes the driving motor 142 to be driven. In addition, the cooling water is supplied to the cooling water supply pipe 133C by the second water pump 60. When the driving motor 142 is driven, the indoor air intake fan 143 and the combustion air intake fan 144 are driven. The indoor air (A) is introduced into the casing 110 and the combustion air (B) is introduced into the combustion chamber (124). Fuel is supplied through the fuel supply pipe 127, ignition occurs by the ignition device 121a, and the fuel is burned.

When a flame is generated in the combustion chamber by the combustion of the fuel, the second casing 110 and the third casing 110 are heated. The heat of the second casing 110 and the third casing 110 is transferred to the water jacket body 132a by the heat transfer fins 132c. The cooling water C flowing through the cooling water flow path 132f is elevated in temperature through heat exchange with the water jacket body 132a, and discharged to the cooling water discharge path 133d.

Meanwhile, the heat transferred to the water jacket body 132a is transferred to the air jacket body 133a which is in contact with each other, and is discharged to the outside through the heat radiation fins 133b on the surface of the air jacket body 133a. The indoor air (A) supplied through the indoor air suction port 114 flows through the space between the air jacket body 133a and the casing 110. At this time, the indoor air (A) absorbs the heat emitted through the heat radiation fin (133b) to increase the temperature and is discharged into the interior of the vehicle through the heating air outlet (115).

As described above, the vehicle multi-heater according to the present invention may be provided with a water jacket and an air jacket to heat both the cooling water and the indoor air by the heat generated in the combustion chamber. Therefore, the cooling water may be heated or the room temperature may be heated through one multi heater according to a user's selection.

On the other hand, Figure 11 is a block diagram schematically showing the configuration of a vehicle heating system 1 according to the present invention including the vehicle multi-heater 100 described above. As shown, the vehicle heating system 1 according to the present invention includes a user input unit 10 that receives a heating mode from a user, an engine 20 for generating a driving force of a vehicle, and heat generated from the engine 20. The radiator 30 which lowers the temperature of the absorbed cooling water, the thermostat 40 which controls the flow volume of the cooling water supplied to the heater coder H according to the temperature of the engine 20, and the cooling water C are connected to the engine ( 20 to the first water pump 50 and the coolant C through the engine 20 are supplied to the multi-heater 100 without being supplied to the heater core H. The second water pump 60 to bypass the 100, the heater core H for supplying the heating air to the vehicle interior by heat exchange with the coolant having a temperature rise, and the coolant before preheating the engine 20 By the multi-heater 100 and the multi-heater 100 for supplying heating air by reducing the cold start time of the engine by heating It includes a duct (D) for supplying the generated heating air to the interior of the vehicle. And an ECU 90 for controlling the respective components according to the operation mode input from the user input unit 10. Here, the cooling water C passes through each configuration via the cooling water pipe ().

The user input unit 10 receives a heating mode inside the vehicle from the user. The heating mode is a mode for heating air through the coolant warmed by the heat of the engine 20 (in this case, the power of the multi-heater is off), and a pre-heater mode for heating the air by heating the coolant by the multi-heater 100 and , The air heater mode for heating the indoor air by the multi-heater 100 to blow the duct, and the mode for heating both the cooling water and the room air by the multi-heater (100). The user may input the use of the multi-heater 100 in order to reduce indoor heating and cold running time while the engine is not preheated in winter.

The ECU 90 controls each component to operate so as to correspond to each mode input to the user input unit 10. The ECU 90 controls driving of the radiator 30 and the multi heater 100 based on temperature information obtained from a temperature sensor (not shown) provided on the engine 20 and the multi heater 100 side. In addition, when the driving of the multi-heater 100 is selected, the fuel pump 70 and the battery 80 are controlled to supply fuel and power to the multi-heater 100.

Hereinafter, the operation of each mode of the heating system 1 according to the present invention having such a configuration will be described with reference to the drawings. First, FIG. 12 is an exemplary view schematically showing an operating state when a user selects a preheater mode for heating air by heating a coolant through the multi-heater 100 before preheating the engine 20. Since the engine 20 is preheated, the thermostat 40 prevents the coolant C passing through the engine 20 from being supplied to the radiator 30. The coolant C passing through the engine 20 through the first water pump 50 is bypassed by the second water pump 60 and supplied to the multi heater 100. The cooling water C supplied to the multi heater 100 passes through the water jacket 132 and heat-exchanges with the heat of the combustion chamber 124 to increase the temperature. The cooling water C whose temperature is raised is supplied to the heater core H. The cooling water C is heat-exchanged with the heater core H, and the heating air heat-exchanged from the cooling water C is supplied to a vehicle interior through a blower (not shown).

Here, the circulation of the cooling water is continued before the temperature of the engine 20 becomes the reference temperature. In this case, since the coolant is first heated by the heat of combustion of the combustion unit 120 before the engine 20 is preheated, the inside of the vehicle may be heated in a short time. In addition, the cold start time of the engine 20 can be reduced.

FIG. 13 illustrates a case in which the user selects to simultaneously heat the coolant and the air through the multi-heater 100. In other words, the preheater function and the air heater function are selected at the same time. In this case, the multi-heater 100 heats the cooling water in the water jacket 132 and sends the cooling water to the heater core H, while absorbing the heat emitted from the air jacket 133 by the indoor air introduced into the casing 110. Allow it to enter the duct (D) while raised. In this case, since the heating air is simultaneously supplied through the heater core H and the duct D, the vehicle can be heated quickly.

14 illustrates a case in which the user selects an air heater mode in which only air is heated through the multi-heater 100. In this case, the cooling water (C) is not circulated, only the indoor air (A) flows into the interior of the multi-heater (100), and heating air (A ') whose temperature is raised by the heat emitted from the air jacket of the multi-heater (100). ) Flows out through the duct (D). Here, the air heater mode may be useful when the user takes a break in the vehicle without driving the engine. That is, the room may be heated by driving only the multi heater 100 while the engine is turned off.

Meanwhile, FIG. 15 illustrates a heating mode for preventing overheating of the engine 20 when the preheater and the air heater shown in FIG. 12 or 13 are driven for a predetermined time and the engine 20 is preheated to a reference temperature. One example. In this case, when the ECU () detects that the temperature of the engine 20 rises above the reference temperature, the thermostat () causes the coolant (C) to flow to the radiator (30). At the same time, the power of the multi-heater 100 is cut off to block the cooling water C from being supplied to the multi-heater 100.

As described above, in the vehicle heating system according to the present invention, since the multi-heater simultaneously performs the functions of the pre-heater and the air heater, two effects can be obtained with a simple configuration. In particular, using the function of an air heater while the engine is not running can effectively heat the vehicle while reducing fuel consumption.

In addition, the cold start time of the vehicle can be reduced through the preheater, thereby maintaining the engine's endurance life.

Embodiments of the vehicle multi-heater and heating system of the present invention described above are merely exemplary, and those skilled in the art to which the present invention pertains various modifications and equivalent other embodiments. You will know well. Accordingly, it is to be understood that the present invention is not limited to the above-described embodiments. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

1 and 2 are perspective views showing the right and left appearance of the multi-heater according to the present invention,

3 and 4 is an exploded perspective view showing the internal configuration of the multi-heater according to the present invention,

5 is a perspective view illustrating a coupling structure of a combustion unit and a heater housing of a multi heater according to the present invention;

6 is an exploded perspective view showing the internal configuration of the combustion unit of the multi-heater according to the present invention,

7 is a perspective view illustrating a coupling structure of a heater housing of a multi heater according to the present invention;

8 is a cross-sectional view showing a cross-sectional structure of a heater housing of a multi heater according to the present invention,

9 is a perspective view showing the configuration of the drive mechanism of the multi-heater according to the present invention,

10 is a cross-sectional view showing the entire cross-sectional configuration of a multi-heater according to the present invention,

11 is a block diagram schematically showing the configuration of a vehicle heating system according to the present invention;

12 is a schematic diagram schematically showing an operation process during preheater driving of a vehicle heating system according to the present invention;

FIG. 13 is a schematic diagram schematically showing an operation process of simultaneous preheater and air heater simultaneous operation of a vehicle heating system according to the present invention;

14 is a schematic diagram schematically showing an operation process when driving an air heater of a vehicle heating system according to the present invention;

15 is a schematic diagram showing a heating operation after the engine preheating of the vehicle heating system according to the present invention is completed.

* Description of the symbols for the main parts of the drawings *

1: car heating system 10: user input unit

20: engine 30: radiator

40: thermostat 50: first water pump

60: second water pump 70: fuel pump

80: battery

90: ECU 100: Multiheater

110: casing 111a: upper case

111b: lower case 113a: left case

113b: Right case 114: Indoor air intake

115: heating air outlet 116: first through-hole

117: second through hole 120: combustion section

121: first case 121a: ignition device

123: second case 124: combustion chamber

124a: outlet 125: third case

127: fuel supply pipe 130: heater housing

131: housing cover 132: water jacket

132a: water jacket body 132b: fluid rib

132c: heating fin 132d: exhaust gas discharge pipe

132e: combustion gas suction pipe accommodation hole 132f: cooling water flow path

133: air jacket 133a: air jacket body

133b: heat sink fin 133c: cooling water supply pipe

133d: cooling water discharge pipe 140: drive 121A

141: support frame 142: drive motor

143: indoor air intake fan 144: combustion air intake fan

145: control board 146: combustion gas suction pipe

150: control unit

Claims

A coolant pipe configured to circulate through the engine, the heater core, and the radiator;

A multi heater provided between the engine and the heater core to selectively heat cooling water and air;

A user input unit configured to receive an operation mode of the multi heater;

A water pump for supplying cooling water to the multi heater such that the cooling water via the engine is supplied to the heater core via the multi heater;

And an ECU for controlling the driving of the multi-heater and the water pump according to an operation mode input through the user input unit.

In claim 1,

The operation mode is,

Car heating system, characterized in that any one of the power OFF of the multi-heater, heating only the cooling water, heating only the air and heating the cooling water and air at the same time.

The method according to claim 1 or 2,

A battery for supplying power to the multi heater;

A heating system for a vehicle further comprising a fuel pump for supplying fuel to the multi-heater.

The method of claim 3,

The multi heater,

A casing in which air inlets and outlets are formed;

A combustion chamber provided inside the casing and burning heat to generate heat;

A water jacket portion disposed in an edge region of the combustion chamber and having a cooling water flow path configured to flow and exchange heat of the cooling water by the heat of the combustion chamber;

And an air jacket portion provided between the casing and the water jacket portion to form an air flow path through which air introduced into the casing receives heat from the water jacket portion.

The method of claim 4, wherein

The water jacket unit and the air jacket unit, characterized in that the heating system for the car is provided integrally.

The method of claim 5,

The water jacket unit is a heating system for a vehicle, characterized in that it comprises a plurality of heat transfer fins for transferring the heat generated in the combustion chamber to the cooling water.

The method of claim 6,

The air jacket unit is a heating system for a vehicle, characterized in that it comprises a plurality of heat radiation fins for dissipating heat transferred from the water jacket unit to the outside.