JPS6220664Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is designed to apply pressure to the engine in a part of the discharge pipe from a supercharger that pumps pressurized heated air to the engine in a vehicle equipped with an engine that uses petroleum or other fuel as fuel. A switching means that branches into an engine supercharging pipe line for sending pressurized heated air and an auxiliary heating pipe line for preheating the vehicle, and switches the branch;
A part of the auxiliary heating pipe is provided with a throttle valve to control the flow rate or pressure, and the outlet of the auxiliary heating pipe is provided below the driver's seat of the vehicle, or is connected to the pipe of the main heating system of the vehicle. This is an engine supercharging device that can.

In vehicles such as automobiles that are equipped with engines that use petroleum or other fuel as fuel, pressurized air is pumped into the engine to increase the filling efficiency of intake air into the engine and improve the output of the engine. feeding machine is used. Generally, a supercharger takes in 0 kg/cm ² of atmospheric air and pumps out 0.4 to 1 kg/cm ² of compressed air. Also, due to air compression, ¹² per 0.1Kg/cm2
Since there is a temperature rise of about 15 degrees Celsius, the discharge pipe outlet temperature of the supercharger can easily be about 60 degrees Celsius. In other words, the outlet temperature T _2ad of the supercharger is It is expressed as Here, assuming T ₁ = 0℃ = 273〓, compression ratio ρ is 0.5Kg/cm ² supercharging, and K = 1.4. becomes. Therefore, the theoretical adiabatic compression temperature increase is T _2ad −T ₁ =306.5−273=33.5 [° C.]. In the turbocharger, if the actual outlet temperature is _T2 , the adiabatic temperature efficiency _ηad = _T2ad - _T1 / _T2 - _T1 = 0.
5 to 0.6, and the actual temperature rise T ₂ −T ₁ =T _2ad −T ₁ /η _ad ≒
The temperature will be around 60℃ to 56℃.

However, conventional heating systems for vehicles use hot water that is heated by engine cooling water as the heat source, and especially in winter when the cooling water is extremely low, it is not possible to start driving immediately after starting the engine, and the temperature rises for a certain amount of time. Warm-up operation is required until the engine is heated, and engine supercharging is not required at such times. Moreover, although it is necessary to heat the cabin of a vehicle in the winter, the cooling water does not quickly reach a temperature suitable for heating, so it has the disadvantage that it cannot be used immediately as a heat source for a heating system.

The purpose of the present invention is to eliminate such drawbacks of the conventional method, and to pass pressurized heated air from the supercharger through an auxiliary heating pipe that branches from the discharge pipe that sends it to the engine. The purpose of this system is to supplementally heat the interior of a vehicle using air from the road.

Embodiments of the present invention will be described below with reference to the drawings while comparing them with conventional examples.

Conventionally, as shown in FIG. 2, a supercharger 1 that operates in conjunction with an engine takes in clean air from an intake pipe 2 through an air cleaner 10, and supplies it to the engine's intake manifold 11 through a discharge pipe 3. It is something to spit out. However, in the present invention, in order to heat the interior of the vehicle before air is pumped from the supercharger to the engine, the discharge pipe 3 is connected to the main heating device 13 for the interior of the vehicle, as shown in FIG. It branches into an auxiliary heating line 3' and an engine supercharging line 5. This branched portion is connected to an actuator 10' that can be operated from the outside, and is provided with a damper 8 that switches the discharged air to each pipe. Furthermore, when the damper 8 is switched so that the discharged air is forced into the auxiliary heating pipe 3' side, the throttle valve 4 for automatically or artificially adjusting the air volume from the supercharging 1 is connected to the auxiliary heating pipe 3'. ’ near the tip. Furthermore, the outlet 12 of the auxiliary heating line 3' can be led directly into the passenger compartment or can be connected to the main heating device 13. On the other hand, while the damper 8 is blowing air into the auxiliary heating pipe 3', an intake pipe 6 is provided protruding from the side of the engine supercharging pipe 5 for sending clean air that has passed through the air cleaner to the engine. A damper 9 that can be opened and closed from the outside by operating an actuator or the like is provided inside the junction between the engine supercharging line 5 and the intake line 6. However, it is also possible to construct the damper 9 so that it can be opened and closed automatically using the intake pressure of the engine without operating the actuator.

Although it is necessary to heat the interior of the car during winter, it takes time for the engine cooling water to heat up, so the supercharger 1 is installed during warm-up operation, which does not require large output.
actuate the damper 8 with the actuator 10'
By switching the air in the discharge pipe 3 to be sent to the auxiliary heating pipe 3', the pressurized heated air of about 60 degrees from the supercharger 1 passes through the main heating device 13 and is delivered indoors. is blown out. Furthermore, the air volume can be adjusted by operating the throttle valve 4. In this case, the air from the supercharger 1 is not sent to the intake manifold 11 of the engine, so the damper 9 acts in the direction of opening the intake pipe 6 and passes through the throttle 7 to the intake manifold 11.
air is inhaled.

As described above, in the present invention, during warm-up operation of the engine, the supercharger 1
The pressurized heated air can be sent into the passenger compartment through the auxiliary heating pipe 3'. Therefore, it has a simple structure,
As soon as the engine is started and the supercharger 1 is activated, pressurized heated air is sent into the room, which has the advantage of greatly shortening the warm-up time. After that, when the engine starts operating, even if the damper 8 is switched to blow air to the engine supercharging pipe 5 side, the main heating device 13 sends out pressurized heated air, so the heating of the vehicle is continued from the start to the time of driving. There will be no interruption until it reaches the end. Note that switching of the damper 8 may be performed automatically using a signal that detects the temperature of the engine cooling water, or a silencer may be provided near the discharge port 12.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing an embodiment of the engine supercharging device of the present invention. FIG. 2 shows an example of a conventional engine supercharging device. In the figure, 1...Supercharger, 2...Suction pipe, 3
...Discharge pipe line, 3'...Auxiliary heating pipe line, 4...Throttle valve, 5...Engine supercharging pipe line, 6...Suction pipe line, 7...Throttle valve, 8...Damper, 9... …
Damper, 10... Air cleaner, 10'... Actuator, 11... Intake manifold, 12... Discharge port, 13... Main heating device, 14... Engine.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a supercharging device for a vehicle engine, a discharge pipe 3 through which pressurized heated air is pumped from a supercharger 1 is connected to an engine supercharging pipe 5 and an auxiliary heating pipe 3. 1. A supercharging device for a vehicle engine, characterized in that the branch part is branched into a branch part, and a switching means is provided at the branch part. (2) The engine supercharging device according to claim 1, which is a utility model, wherein a throttle valve 4 is provided in the auxiliary heating pipe 3' to control the flow rate or pressure of the pressurized heated air. (3) The engine supercharging device according to claim 2, wherein the discharge port 12 of the auxiliary heating pipe 3' is connected to the main heating device 13 of the vehicle.