JPS61185676A - Heating device for vehicle - Google Patents

Abstract

PURPOSE:To raise the starting efficiency of an internal combustion engine at cold time, by setting a heat accumulating body which accumulates and discharges heat energy, in a heating means which makes it easy to start an internal-combustion engine. CONSTITUTION:A heating means 26 is constituted of a heat accumulating body 28 and a commanding system 30 for generation of heat. Heat accumulating bodies 28A are set in a water jacket 8, and a heat accumulating body 28B is set in an oil pan 10. A heat accumulating body 28C is set in a transmission case 14, a heat accumulating body 28D is attached on the inner surface of the wall of an intake manifold 18, and a heat accumulating body 28E is set at the lower part of a battery 6. In this way, the starting efficiency of the internal-combustion engine can be raised.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heating device for a vehicle, and more particularly to a heating device for a vehicle that improves the startability of an internal combustion engine in cold weather.

[Prior Art] When starting an internal combustion engine, if the outside air temperature is extremely low, the viscosity of the engine oil increases and frictional resistance increases, and the cooling of the entire internal combustion engine worsens the vaporization of the fuel. Due to the combination of adverse conditions, starting performance deteriorates. Therefore, in order to promote fuel vaporization and improve startability, a heating device such as a block heater is attached to the intake manifold, and the air-fuel mixture is heated by this heating device. Additionally, some vehicles are equipped with devices such as defrosters that prevent the glass from fogging up.

[Problems to be solved by the invention] However, in order to operate devices such as the above-mentioned block heater, it is necessary to install a large-capacity vehicle battery and generator, which increases weight and size. At the same time, it has the disadvantage of being expensive. In addition, even though large-capacity vehicles and generators are installed to make it easier to start the internal combustion engine in cold weather, when the outside temperature drops to -30°C to -40°C, the engine The viscosity of the oil and transmission oil was high, and the vaporization of the fuel was also poor, making it difficult to start and demodulate. As a result, shift feeling deteriorates and drag resistance increases. When the vehicle is driven under such conditions, the engine stalls due to engine malfunction, resulting in a decrease in driving performance, as well as deterioration in fuel efficiency and an increase in self-harming components of the exhaust. In addition, the temperature of engine oil and transmission oil rises due to the heat generated by the main body of the internal combustion engine and the drive mechanism such as the transmission, so the viscosity of the engine oil and transmission oil will be low enough to not interfere with starting the internal combustion engine. required a long time, which led to an increase in fuel consumption.

Furthermore, when heating the required parts of the internal combustion engine, including the auxiliary equipment, with a heating device such as an electric heater connected to the vehicle battery, a large load is placed on the vehicle battery, resulting in poor starting performance. Improvements were desired.

[Object of the Invention] Therefore, the object of the present invention is to eliminate the above-mentioned inconveniences and to heat the internal combustion engine including the auxiliary devices using a simple heating means without providing power supply equipment such as a large-capacity battery or generator. The object of the present invention is to realize a heating device for a vehicle that can heat required locations and improve the startability of an internal combustion engine in cold weather.

[Means for Solving the Problem] In order to achieve this object, the present invention provides heating at required locations of the internal combustion engine, including accessory devices installed in the internal combustion engine, in order to facilitate starting of the internal combustion engine. It is characterized by being equipped with a heating means.

[Function] According to the configuration of the present invention, the necessary parts of the internal combustion engine including the auxiliary devices are heated by the heating means, and the internal combustion engine is warmed up early to facilitate starting of the internal combustion engine in cold weather, thereby improving fuel efficiency and operation. Aim to improve performance.

[Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described in detail and specifically based on the drawings.

FIG. 1 shows a first embodiment of the invention. In the figure, 2 is an internal combustion engine including accessory devices such as an ignition system, 4
2 is the main body of the internal combustion engine 2, and 6 is a battery that is a part of the attached device. A water jacket 8 is formed at the top of the main body 4 so as to surround a cylinder (not shown). Further, an oil pan 10 is attached to the lower part of the main body 4, and engine oil 12 is retained in this oil pan 10.

Furthermore, a transmission case 14 is attached to the side portion of the main body 4, and transmission oil 16 is retained within this transmission case 14. Furthermore, one end side of an intake manifold 18 is connected to the main body 4, and a carburetor 2 is connected to the other end side of the intake manifold 18.
o is attached. Further, a radiator 22 is connected to the main body 4, and this radiator 22 cools the cooling water 24 flowing inside the water basin 78.

The battery 6 is for operating the electrical equipment of the vehicle.

Next, heating means 26 are provided at the necessary locations of the internal combustion engine 2 to be heated. This heating means 26 includes a heat storage body 28,
It consists of a heat generation command mechanism 30 connected to this heat storage body 28. This heat generation command mechanism 30 is composed of a power source 32 and a command switch 34.

The heat storage body 28 contains a stabilizer that maintains the liquid phase even when the outside air temperature becomes extremely low. In addition, the heat storage body 28
becomes a liquid phase due to the thermal energy generated during the operation of the internal combustion engine 2, accumulates this thermal energy, and the internal combustion engine 2
When the heat generation command mechanism 34 is turned on when starting the
Stimulated by an electrical signal, the phase changes from a liquid phase to a solid phase, and the accumulated thermal energy is released as latent heat, thereby heating the required portions of the internal combustion engine 2. The above-mentioned electrical signal stimulation can be performed, for example, by the power source 3.
2 to give a predetermined current value. A heat storage body 28A is installed in the water jacket 8,
A heat storage body 28 is contained in the engine oil 12 in the oil pan 10.
A heat storage body 28C is installed in the transmission oil 16 in the transmission case 14, and a heat storage body 28C is installed on the inner wall surface of the intake manifold 18.
D is attached, and furthermore, a heat storage body 28 is attached below the battery 6.
E is attached.

When the outside air temperature drops to an extremely low temperature after the internal combustion engine 2 is stopped, the temperature of the main body 4, the cooling water 24, the engine oil 12, the transmission oil 16, the intake manifold 18, and the battery 6 decreases due to heat radiation. At this time, the heat storage body 28
A, 28B, 28C128D, and 28E also decrease in temperature, but because a stabilizer is mixed in, they enter a so-called supercooled state in which the liquid phase is maintained.

Next, when starting the cooled internal combustion engine 2, the command switch 34 is turned on and the heat storage body 28 is stimulated with an electric signal. As a result, the m-heating body 28 changes its phase from a liquid phase to a solid phase and releases thermal energy as latent heat. This heat radiation heats the cooling water 24, engine oil 12, transmission oil 16, intake manifold 18, and battery 6.

That is, the heating element 28 installed inside the water jacket 8
A heats the cooling water 24 and promotes vaporization of the fuel. The heat storage body 28B installed in the oil pan 10 heats the engine oil 12, lowers the viscosity of the engine oil 12, and reduces frictional resistance.

Heat storage body 2 installed inside transmission case 14
8C heats the transmission oil 16 to lower the viscosity of the transmission oil 16 to improve shift feeling and reduce drag resistance. Heat storage body 2 attached to the inner wall surface of the intake manifold 18
8D heats the air-fuel mixture from the carburetor 20 side to promote vaporization of the fuel. Furthermore, the heat storage body 28E attached to the lower part of the haft battery 6 is maintained at a predetermined temperature in order to exhibit the functions of the battery 6.

The electromotive force of the battery 6 is restored to ensure a predetermined power supply to an electric device such as a starting morph.

When the internal combustion engine 2 reaches a predetermined temperature or higher after the internal F8 engine 2 is started, the heat storage body 28 undergoes a phase change again from the solid phase to the liquid phase and stores this thermal energy.

In this way, when the internal combustion engine 2 is started, the heat storage body 28 undergoes a phase change and thermal energy is released as latent heat. With this configuration, required parts of the cooled internal combustion engine 2 can be heated early, the startability of the internal combustion engine 2 can be improved, and early demodulation can be achieved. This makes it possible to prevent engine malfunctions such as engine stalling during and after starting, improve fuel efficiency, reduce harmful exhaust components, and improve driving performance. Additionally, large-capacity batteries and generators are not required, weight and size can be reduced, and the cost is low. Furthermore, since the heat storage body 28 undergoes a phase change when stimulated by an electrical signal, the reliability of the device is also increased.

In addition, since the m heating body 28 stores and releases thermal energy without supplying external energy, it reduces the burden on the battery 6 at the time of starting the engine 9) and improves the startability of the internal combustion engine 2. Maintenance and inspection are easy and inexpensive.

Furthermore, when the internal combustion engine 2 reaches a predetermined temperature or higher, the heat storage body 28 changes its phase from a solid phase to a liquid phase and stores thermal energy, so the heating temperature does not become too high and is safe.

In this embodiment, an M heating element is illustrated as the heating means, but a heating element may be provided instead of the M heating element. This heating element is connected to a commercial power source, for example, and generates Joule heat when a power supply switch is operated and electric power is supplied, and heats a required part of the internal combustion engine 2 by dissipating this heat. This provides the same effect as the above-mentioned M heating element, enables sufficient heating over a long period of time, is compact and inexpensive, and increases the reliability of the device.

FIG. 2 shows a second embodiment of the invention. In the following embodiments, parts having the same functions as those in the above-described embodiments will be described with the same reference numerals.

This second embodiment is characterized by the following points. That is, for example, the transmission case 14 is provided with a heat storage body 28C, and is equipped with, for example, an oil temperature sensor 38, which is a temperature sensor that outputs a signal to the control unit 36 when the transmission oil 16 in the transmission case 14 is below a set temperature. establish. Further, the control section 36 is provided with a trigger section 40 for stimulating the heat storage body 28C with an electric signal.

If configured as in the second embodiment, when the internal combustion engine is started, a signal is output from the oil temperature sensor 38 to the control unit 36 only when the transmission oil 16 is below the set temperature, and the signal is output from the control unit 36. A signal is output to the trigger section 40, and the heat storage body 28C is stimulated by the electric signal by the trigger section 40 and radiates heat. As a result, the temperature of the transmission/notion oil 16 is raised early, the viscosity is lowered, the shift feeling is improved, and it only takes a short time to reach a predetermined temperature that reduces drag resistance. Aims to improve fuel efficiency after startup. Therefore, it is possible to reduce the load when starting the internal combustion engine, facilitate starting, and improve driving performance. In addition, since the oil temperature sensor 38 is provided, when the transmission oil 16 is high temperature, the heat storage body 22
8C does not radiate heat, and overheating of the transmission oil 16 can be prevented.

FIG. 3 shows a third embodiment of the invention. The feature of this third embodiment is that it is provided with a switch mechanism 42 that is turned on by the displacement operation of the vehicle component mechanism. That is, for example, in the transmission case 14,
A heating element 44 and an oil temperature sensor 38 are installed, and the heating element 44 is connected to a control section 36, and this control section 36 has a door 4 of the vehicle, which is one of the vehicle components.
Door opening/closing switch 4 that turns on due to the displacement caused by the opening operation of 6
8 have been contacted.

If configured as in this third embodiment, the door 4
6 is opened and the oil temperature sensor 38 detects a temperature lower than the set temperature, the heating element 44 generates Joule heat by the electric power from the control unit 36, and the transmission oil 16 is heated by this heat generation. As a result, by the time the driver sits down and operates the engine key to start the internal combustion engine, the temperature of the transmission oil 16 has risen, making starting easier and further improving early demodulation.

FIG. 4 shows a fourth embodiment of the invention. The feature of this fourth embodiment is that it is provided with a timer mechanism 50 that automatically outputs a signal to the heat storage body at a preset time. That is, for example, transmission case 1
4 is provided with a heat storage body 28C, and this heat storage body 28C
The timer 52 was notified via the control unit 36.

If configured as in the fourth embodiment, when the timer 52 is set to a set time before starting the internal combustion engine, a signal is output from the timer 52 to the control unit 36 at the set time, and the control unit 36 outputs a signal to the heat storage body 28C. is stimulated with an electrical signal. As a result, when the driver starts the internal combustion engine,
The temperature of the transmission oil 16 has increased and the viscosity has become low, so that the vehicle can start driving immediately after the internal combustion engine starts operating.

FIG. 5 shows a fifth embodiment of the invention. A feature of this fifth embodiment is that a remote control mechanism 54 is provided. That is, for example, a heat storage body 28C is installed in the transmission case 14, and this heat storage body 28C is installed in the transmission case 14.
A receiver 56 is connected to the control unit 36 which communicates with C. This receiver 56 receives the radio signal generated by the transmitter 58.

With the configuration as in the fifth embodiment, the driver operates the transmitter 58 outside the vehicle to send a wireless signal to the receiver 56.
As a result, an electrical signal is applied to the heat storage body 28C via the control unit 36. As a result, the driver can easily heat the transmission oil 16 outside the vehicle, which is convenient.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made.

For example, it is possible to install a heat storage body or a heat generating body at a required location of the internal combustion engine 2 to be heated, or to install two or more heat generating bodies in combination. It is also possible to install a heat storage or heating element outside the intake manifold, outside the oil pan, outside the transmission case, and on the side of the battery.

In addition, in the third embodiment, a door opening/closing switch was used as the switch mechanism of the vehicle component mechanism, but there is also a seat switch that is turned on when the driver sits on the seat, a tarlatch switch that is turned on by operating the clutch, and a door key that is turned on. It is also possible to use a switch mechanism such as a door key shifter or ignition switch that turns on when the vehicle is turned on.

Furthermore, in the second and third embodiments, an oil temperature sensor is provided as a temperature sensor, but it is also possible to provide an outside air temperature sensor or other detection means for detecting the temperature at a required location of the internal combustion engine.

[Effects of the Invention] As is clear from the detailed explanation above, according to the present invention,
To improve the startability of an internal combustion engine in cold weather by heating necessary parts of an internal combustion engine, including accessory devices, using a heating means with a simple configuration without providing power supply equipment for a large-capacity battery or generator. This improves fuel efficiency, reduces harmful exhaust gas components, and improves driving performance.

Furthermore, if a heat storage body is provided in the heating means, there is no need to supply external energy, so the load on the internal combustion engine can be reduced when starting the internal combustion engine, and the cost is low, and maintenance and inspection are easy. Further, the required parts of the internal combustion engine can be easily heated even at extremely low temperatures.

Furthermore, if a heating element is provided as a heating means, sufficient heating can be performed for a long time, the device is compact and inexpensive, and the reliability of the device is increased.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a heating device showing a first embodiment of the present invention. FIG. 2 is an explanatory diagram of a heating device showing a second embodiment of the present invention. FIG. 3 is an explanatory diagram of a heating device showing a third embodiment of the present invention. FIG. 4 is an explanatory diagram of a heating device showing a fourth embodiment of the present invention. FIG. 5 is an explanatory diagram of a heating device showing a fifth embodiment of the present invention. In the figure, 2 is an internal combustion engine, 4 is a main body, 6 is a battery,
8 is a water jacket, 10 is an oil pan, 12 is engine oil, 16 is transmission oil, 18 is an intake manifold, 24 is cooling water, 26 is a heating means, 28 is a heat storage body, and 30 is a heat generation command mechanism.

Claims (1)

[Scope of Claims] 1. A heating device for a vehicle, characterized in that heating means for heating the internal combustion engine to facilitate starting of the internal combustion engine are provided at required locations of the internal combustion engine, including accessory devices installed in the internal combustion engine. Device. 2. The heating means has a heat storage body that stores thermal energy generated when the internal combustion engine is operating, and that changes its phase by stimulation of an electric signal when the internal combustion engine is started and releases the stored thermal energy as latent heat. A heating device for a vehicle according to claim 1. 3. The heating device for a vehicle according to claim 1, wherein the heating means includes a heating element that generates Joule heat using electric power.