JPS5833515A - Vehicular cooling equipment - Google Patents

Abstract

PURPOSE:To save energy by a simple structure wherein a cooling unit and a hot water heat exchanger are provided in parallel to a fuel vaporizer through a change-over valve in a vehicle using liquefied combustible gas as fuel. CONSTITUTION:In cooling, a solenoid valve 15 is closed and a solenoid valve 21 is open and liquefied combustible gas is supplied to a piping system 20 and reduced its pressure at a throttle 22 in order to enter a cooler 25, within which the gas is heat-exchanged by means of a blower 26 with the air circulating inside the vehicle in order to cool said circulating air by evaporating itself, and, after that, supplied through the hot water heat exchanger 24 and a carbureter 17 to an engine. The cooling control is performed by controlling the operation of the blower 26 and at the same time by opening a solenoid valve 30 so as to control the gasification of the liquefied combustible gas within the hot water heat exchanger 24. In case that no cooling is required, the solenoid valve 15 is open and the solenoid valve 21 is closed so as to flow the liquiefied combustible gas to a piping system 19 as indicated with the dashed lines and arrow heads. In such a manner as mentioned above, the sure gasification of liquefied combustible gas in cooling and as well as the energy-saving cooling with simple arrangement can be accomplished.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling system for a vehicle equipped with an engine.

In a vehicle cooling system, as shown in FIG. 1, a refrigerant gas (R12) is normally compressed by an engine 1, a compressor 4 driven by a belt 2 and an electromagnetic clutch 3. The refrigerant gas, which has reached a high temperature and pressure, is cooled in the condenser 5, condenses and becomes liquefied, and enters the liquid receiver 6. The liquid from the receiver 6 is depressurized through the expansion valve 7, enters the evaporator 8, exchanges heat with the vehicle interior air, evaporates, and returns to the compressor 4 again. The interior of the car is cooled by repeating the above cycle.

When the air temperature inside the vehicle falls and reaches the set temperature of the humidity controller 11, the electromagnetic crankshaft 3 becomes de-energized and the compressor 4 stops. When the temperature of the air inside the vehicle rises and reaches the set temperature of the temperature controller 11, the compressor 4 is operated again.

In addition, 9 in the figure is a blower, 10 is an evaporator 8 and a blower 9.
A cooling unit consisting of:

However, the cooling system described in (h) has a compressor 4. Since devices such as a condenser 5 and a liquid receiver 6 are required, the structure is complicated and expensive, and power to drive the compressor 4 is required.

The present invention is equipped with an engine that uses liquefied combustible fuel as fuel.
lit! In a vehicle that has been used for air conditioning, it was discovered that the heat of vaporization of the liquefied combustible residue could be used for air conditioning. The present invention aims to provide a cooling system for a vehicle that can always vaporize and supply twisted paper in a good condition, while requiring the following equipment and achieving simple and energy-saving T3 energy saving. It is something.

The present invention is directed to a 1T vehicle equipped with an engine that uses liquefied I1 fuel gas as fuel (in parallel with the 011 vaporizer in the fuel piping system that vaporizes the fuel and supplies the vaporizer to the engine). A piping system having a hot water heat exchanger is connected to the cooling knee 2.1 which exchanges heat with the interior air to cool the same air through a switching valve, and the temperature of the interior air is adjusted by controlling the blower of the cooling unit. This system is characterized by having a valve that controls the supply of wet water to the drought heat exchanger in conjunction with a pressure regulator that controls the supply of wet water to the drought heat exchanger, and does not require air conditioning. At that time, the fuel piping system equipped with a vaporizer was installed at MJL-U.
, Supply fuel to engine 7, Command rr, 'i'
f F, 'f (, 'lJ m excuse IC to cold ξ To the pipe name with Unino 1, liquefied combustible gas intermediary (1 (supply 1-5. cold l [I knee, l to exchange heat with the inside air) Ze-7IJj inside'') Soki o? 7 to month 11. ,
ill f ly, it, ? -evaporate Jj fu 1 at t
Hisao], 1-1-power to be supplied with -r-n-ding--, /l'j 1-'5 in + lj in 1! il: ! 'J is Ftt agent l2. Altitude adjuster settings 171. Affecting people 1-
, I-cold Jl=1= 71's air fan stops +l-,,c
It, middle white "1? Heat exchange between gas and combustible gas is II-
At this time, the hot water supply to the drought heat exchanger 1 is controlled.
The pipe opens and hot water is supplied, and the combustible waste exchanges heat with the dry water and is supplied to the evaporative gas (tii) engine 2.
1/.

Therefore, the fuel gas for liquefaction can always be evaporated and gasified in good condition and supplied to the engine.
It is possible to obtain a vehicle cooling system that uses 1 combustion gas, is simple and efficient, and can save energy. .

The refrigerator invention will now be described based on examples.

It is a 15-piece solenoid valve, a 16-piece valve, and a 1/piece carburetor. Similar to a conventional vehicle that uses liquefied gas as fuel, the fuel piping system 19 is configured to vaporize liquefied combustible gas supplied from the fuel tank as shown by arrow 18 and supply it to the engine. It is something.

20 is a solenoid valve 21. Aperture 22. A cooling unit 23 is a piping system having a hot water heat exchanger 24, and is connected in parallel to a solenoid valve 15 and a vaporizer 16 to a fuel piping system 19.

The cooling unit 23 includes a cooler 25 for exchanging heat between the liquefied hot gas and the air inside the car, and a cooler 25 for cooling the air inside the car.

It is composed of a blower 26 that circulates the air through the air.

A piping 28 through which engine cooling water is circulated as shown by an arrow 27 is connected to the hot water heat exchanger 24, and a solenoid valve 30 is connected to the piping 28, which is controlled by a humidity controller 29 that adjusts the humidity inside the vehicle. is provided.

Note that the temperature controller 29 detects the humidity inside the car and turns on the air blower 2.
6 can be turned on and off.

In the above structure IJz, 1 normal air conditioner 1f (in case of 1 turn).

"r [L Close the solenoid valve 15, open the solenoid valve 21, and turn on the liquid 5.
When the i11 fuel gas is supplied to the piping system 20, it is liquefied and the fuel gas is reduced by the throttle 22 and enters the cooler 25, where it is heat exchanged with the air inside the car that is circulated by the blower 26. Cool the air.

On the other hand, the liquefied fuel gas 111 is evaporated by exchanging heat with the interior air of the vehicle, passes through the hot water heat exchanger 24, enters the carburetor 17, and is supplied to the engine.

At this time, the i-magnetic valve 301 is closed, and dry water is not circulated to the hot water heat exchanger 24.

During cooling operation, the air temperature inside the car decreases and the temperature controller 29
When the set temperature is reached, the blower 26 stops and heat exchange with the cabin air in the cooler 25 stops.
0 is opened, and the first wet water from the engine cooling system flows into the heat exchanger 24.
The liquefied combustible gas is exchanged with the liquefied combustible gas to evaporate and gasify the liquefied combustible residue, which is then supplied to the engine via the vaporizer 17.

Therefore, it liquefies when the air conditioner is in operation, and when the air conditioner is cooling and when the air conditioner is stopped. We must be able to reliably turn hot gas into oxygen and supply it to the factory.

1. If cooling is required, the solenoid valve 15 is opened and the solenoid valve 22 is closed, and the liquid fuel gas is passed through the normal piping system 19 of this type of vehicle. ~ can be supplied to the engine ^-1.

As described above, according to the two embodiments, liquefied fuel gas can always be reliably evaporated and gasified and supplied to the engine regardless of whether cooling is in operation or when cooling is not required, and the liquefied fuel gas can be used. A vehicle cooling system having a simple, economical, and energy-saving configuration can be obtained.

In the above embodiment, two electromagnetic valves 15 and 21 are provided, but it goes without saying that a three-way switching valve may be used instead.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a conventional device. FIG. 2 is a block diagram showing an embodiment of the present invention. 1")° type crushing valve, 16: Vaporizer, 17: Vaporizer 3
19. Fuel I piping system, 20: Piping system, 21. solenoid valve. 29: Aperture 923: Cooling unit, ), 24: Wet water heat exchanger 25 Cooler, 26° blower, 28° piping, 29:
Temperature controller, 30: Solenoid valve.

Claims (1)

[Claims] In a vehicle equipped with an engine that uses liquefied combustible gas as fuel, the fuel 1 is supplied to the engine through a vaporizer, a vaporizer, and a fuel piping system in which the vaporizer is connected in parallel to the vaporizer and connected to the interior air and heat through a switching valve. A cooling unit that exchanges and cools the same air is connected to a piping system having a hot water heat exchanger, and the hot water heat exchanger is linked to a temperature controller that controls the air blower of the cooling unit to adjust the air humidity inside the vehicle. A vehicle cooling device characterized by being provided with a valve for controlling hot water supply to a container.