RU83295U1 - DEVICE FOR STARTING HEATING OF THE VEHICLE OF THE INTERNAL COMBUSTION OF THE VEHICLE - Google Patents

Abstract

A device for preheating a vehicle’s internal combustion engine, comprising a combustion chamber, a fuel pump, a pressure reducing valve with a bypass hole, a gas fuel heater, a nozzle, a fuel nozzle valve, a fuel pipe system for connecting said units together, and also with an engine and a fuel tank of a vehicle, characterized in that the inlet of the pressure reducing valve is located after the gas heater, and the bypass hole of the pressure reducing top ivnogo valve arranged to communicate with a fuel rail supplying fuel to the vehicle engine.

Description

The inventive utility model relates to the field of engineering and can find application in the automotive industry, in particular in devices for heating internal combustion engines in the winter.

Widely known are devices for preheating an internal combustion engine of a vehicle, containing a combustion chamber, heat exchangers, pumps for pumping water and supplying fuel, a fuel pipe system (L.A. Nikolayev and others. “Tractor diesel engine heating systems at start-up”, M. “Engineering” ", 1977, I.Ya. Raikov, G.N. Rytvinsky" Design of automobile and tractor engines "," Higher School ", 1986, p. 281).

However, most of these devices are reliable only in combination with a special starting fluid or are not convenient enough to operate.

A device for prestarting heating an internal combustion engine, providing a comprehensive heating of engine components, comprising (Fig. 1) a combustion chamber 1, a fuel pump 2 with an integrated pressure reducing valve 3, designed to bypass part of the fuel from the pressure cavity of the pump 2 into the suction cavity, a gas heater 4 fuels, nozzle 5, fuel valve 6 of the nozzle, as well as fuel pipe systems 7 and 8, designed to connect these elements and assemblies with the engine 9 and the fuel tank 10 of the vehicle (not shown in the drawing) (see. "Pre-start heating system for tractor units T-35.01 manufactured by Promtractor OJSC, Cheboksary, Operating Instructions, 1990).

This known device is operational in winter only when using winter or arctic fuel. The use of summer fuel is not possible, since when starting the device, turning on the fuel

pump and fuel supply to the combustion chamber occurs when there is paraffin released in this fuel in this fuel.

The technical result of the claimed utility model is to expand the operational capabilities of the device by providing the possibility of its use to start the engine at low temperatures on summer fuel.

The technical result is achieved due to the fact that the device for preheating the internal combustion engine of the vehicle, comprising a combustion chamber, a fuel pump with a built-in pressure reducing valve having a bypass hole, a gas fuel heater, a nozzle, a fuel nozzle valve, a fuel pipe system for connecting said nodes between each other and with the engine and the fuel tank of the vehicle, the inlet of the pressure reducing valve is connected to the fuel line after gas heating a bypass, and the bypass hole (exit) has the ability to communicate with the fuel line supplying fuel from the tank to the engine directly at the entrance to the vehicle engine (not shown).

The essence of the proposed device for preheating the internal combustion engine is presented in the accompanying drawings:

in figure 1 - device is a prototype,

figure 2 is a device, claimed as a utility model.

A device for preheating an internal combustion engine comprises a combustion chamber 1, a fuel pump 2, a pressure reducing valve 3, a gas fuel heater 4, a nozzle 5, a fuel valve of a nozzle 6, a fuel pipe system 7 for connecting said assemblies to each other, and a fuel pipe 8 for communicating with the engine 9 and with the fuel tank 10 of the vehicle (not shown). The input 11 of the pressure reducing valve 3 is connected to the fuel line 7 after the gas heater

4, and the bypass hole 12 is able to communicate through the fuel pipe 13 with the fuel line 8 of the vehicle engine 9.

The operation of the device for preheating the internal combustion engine is as follows.

Before starting the device according to the known scheme, an electric heater (not shown) is turned on, heating the fuel in front of the fuel valve 6, melting the paraffin in this section. When the fuel pump 2 is turned on, preheated fuel (with molten paraffin) is supplied to the combustion chamber 1 and to the nozzle 5. The device startup has been played.

Then, through the gas heater 4, the fuel in the fuel line 7 is heated and fed to the input 11 of the pressure reducing valve 3 and through the bypass hole 12 enters the fuel line 13 and then into the fuel line 8, connecting it to the fuel tank 10.

Thus, a closed fuel heating system was obtained along the route: gas heater 4, fuel pipe 7, input 11 to the pressure reducing valve 3, bypass hole 12, fuel pipe 13, fuel pipe 8, fuel tank 10, fuel pipe portion 7 from tank 10, pump 2, gas heater 4, fuel pipe 7 after the gas heater, again input 11 to the pressure reducing valve 3, output 12, fuel pipe 13, fuel pipe 8 to the tank 10. When the fuel is sufficiently warmed up on this route, the device turns off.

The constructive implementation of the device provides with minimal cost the possibility of starting and operating an internal combustion engine on summer fuel in the winter.

Claims (1)

A device for preheating a vehicle’s internal combustion engine, comprising a combustion chamber, a fuel pump, a pressure reducing valve with a bypass hole, a gas fuel heater, a nozzle, a fuel nozzle valve, a fuel pipe system for connecting said units together, and also with an engine and a fuel tank of a vehicle, characterized in that the inlet of the pressure reducing valve is located after the gas heater, and the bypass hole of the pressure reducing top ivnogo valve arranged to communicate with a fuel rail supplying fuel to the vehicle engine.