RU191729U1 - DEVICE FOR PRE-STARTING HEATING OF INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

The device for preheating the internal combustion engine contains a heat exchanger (1), a supercharger (2) of air, interconnected by pipelines (3), a distribution pipe (4). Supercharger (2) of air is made in the form of a fan. Pipelines (3) form an air circulation circuit. The distribution pipe (4) is installed in the oil sump housing (5). The air circulation circuit is closed. As the heat carrier use a hot liquid or gas. The problem of ensuring and maintaining the temperature regime of the engine at low temperatures was solved.

Description

The utility model relates to engine building, and in particular to systems designed to create and maintain the temperature conditions of internal combustion engines during operation in the cold period of time.

A known system for preheating an internal combustion engine, comprising a heater with inlet and outlet pipes equipped with water pumps, to which a block head with a cylinder block jacket, a radiator with a thermostat and an oil tank coil are connected in parallel, the system is equipped with an additional pipe, which is connected to the head on one side block, and on the other hand, to the exhaust manifold through a three-way valve (Su patent No. 956833, IPC F02N 17/02, publ. 09/07/1982).

An autonomous engine pre-treatment system is also known, comprising a fuel tank made independent of the engine fuel system, a pre-heater, which includes a heater boiler, a pump unit including a supercharger, a liquid and fuel pumps designed to provide coolant circulation between the pre-heater and the engine through the piping system, and to supply fuel from the fuel tank to the pre-heater through the fuel line, as well as the pipeline d removal of combustion products from the preheater to the engine’s raised pallet, further comprises a battery heating device made in the form of a tube at one end connected to the coolant supply pipe to the engine, and the other end to a pipe for cooling the cooled coolant from the engine to the preheater (patent RU No. 183420, IPC F02N 19/02, publ. 03/27/2018).

The closest device of the same purpose to the claimed utility model in terms of essential features and taken as a prototype is a pre-heater system for an internal combustion engine with air cooling, containing an air heater with a fan, a casing for supplying coolant to the crankcase and its pallet and a pipe for supplying coolant to engine cylinders, the heater is equipped with a mode switch for heating and ventilation, and in the pipe for supplying coolant to the engine cylinders STUDIO performed ventilating window installed therein an adjustable butterfly valve (patent Su №696174, IPC F02D 1/00, publ. 10.23.1982).

Known solutions in most cases have a long process of preparing the engine for starting, because the heating of the parts of the crank mechanism (KShM), which create significant resistance to the starter at extremely low temperatures, occurs due to the distribution of heat from the warmed cylinder block and engine oil of the engine.

The task to which the claimed technical solution is directed is to ensure and maintain the temperature regime of the engine at low temperatures. By heating the parts of the crankshaft, reducing the viscosity of the engine oil in the joints of the crankshaft, an increase in the speed of the crankshaft, facilitating engine starting, is achieved.

This object is achieved in that the device for starting the preheating of the internal combustion engine, comprising a heat exchanger, an air blower, interconnected by pipelines forming an air circulation circuit, in addition, further comprises a distribution pipe installed in the oil sump housing, and the air circulation circuit is closed.

The set of distinctive features, namely, that the device for preheating the internal combustion engine additionally contains a distribution pipe installed in the oil sump housing, and the air circulation circuit is closed, will reduce the viscosity of the engine oil in the joints of the crankshaft, increase the speed of the crankshaft, facilitate starting engine.

The inventive utility model is illustrated in a schematic illustration, which shows the device pre-heating the internal combustion engine.

The device for preheating the internal combustion engine contains a heat exchanger 1, a supercharger 2 of air, interconnected by pipelines 3, a distribution pipe 4.

Supercharger 2 air is made in the form of a fan.

Pipelines 3 form an air circulation circuit.

The distribution pipe 4 is installed in the housing of the oil sump 5.

The air circulation circuit is closed.

A hot liquid or gas is used as a heat source.

The preheating system of an internal combustion engine operates as follows.

When heat is supplied to the heat exchanger 1 and the air blower 2 is turned on, cold air from the cavity of the crankcase 5 enters the heat exchanger 1. There it is heated and enters the distribution pipe 4, which has guide nozzles 6 for blowing parts of the crankcase.

When blowing, the parts are heated and the viscosity of the engine oil decreases in the KShM mates, which ensures an increase in the crankshaft speed and favorable conditions for starting the engine.

The claimed technical solution makes it easier to start the internal combustion engine at low temperatures, to use more viscous grades of motor oils in the winter, and can also be used as part of existing systems to ensure engine starting.

The claimed technical solution is possible for implementation on standard technological equipment.

Claims (1)

A device for preheating an internal combustion engine, comprising a heat exchanger, an air blower, interconnected by pipelines forming an air circulation circuit, characterized in that it further comprises a distribution pipe installed in the oil sump housing, and the air circulation circuit is closed.

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