RU119398U1 - AUTONOMOUS ENGINE PRE-PREPARATION SYSTEM - Google Patents

Abstract

1. An autonomous engine prestarting system, containing a preheater with a liquid pump designed to circulate the coolant between the preheater and the engine through the pipeline system, a fuel pump designed to supply fuel from the fuel tank to the heater through the fuel pipeline, as well as a combustion products exhaust pipeline from the heater to the engine oil sump, characterized in that the fuel tank is made independent of the engine fuel system. ! 2. The autonomous engine prestarting system according to claim 1, which comprises an additional fuel pump. ! 3. An autonomous engine prestarting system according to claim 1 or 2, in which the preheater, liquid and fuel pumps, as well as the fuel tank, fuel lines and nozzles connecting the heater with the piping system are located in a separate housing.

Description

Autonomous engine start-up system

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

A device for preheating an internal combustion engine of a vehicle is known, comprising a combustion chamber, a fuel pump, a pressure reducing valve with a bypass hole, a gas fuel heater, a nozzle, a nozzle fuel valve, a fuel pipe system for connecting said nodes together, and also with the engine and the fuel tank of the vehicle, while the inlet of the pressure reducing valve is located after the gas heater, and the bypass hole of the pressure reducing of the valve is located with the possibility of communication with the fuel line supplying fuel to the vehicle engine (RF patent No. 83295, IPC F02N17 / 00 (2006.01), publ. 05.27.2009).

The closest set of essential features to the claimed technical solution is a pre-start engine preparation system containing a pre-start heater with a pump unit designed to provide coolant circulation between the pre-start heater and the engine and consisting of a fan (supercharger), fuel and liquid pumps, a fuel tank filled automatically when the engine is running, a fuel pipe system designed to communicate the mentioned nodes with each other, and ose from the engine and the fuel tank, the conduit outlet from the combustion heater to the engine oil sump products (see. Cars KAMAZ type 6x4. Manual. M .: Engineering, 1994. 81-86 s).

The implementation of the heater’s fuel tank associated with the engine fuel system makes the operation of the pre-start preparation system dependent on it, which reduces the overall system performance.

The task was to create a compact design with high performance, independent of the fuel system of the engine.

The problem is solved due to the fact that in an autonomous engine pre-treatment system containing a pre-heater with a liquid pump designed to ensure circulation of the coolant between the pre-heater and the engine through the piping system, a fuel pump designed to supply fuel from the fuel tank to the heater through the fuel pipe as well as the pipeline for the removal of combustion products from the heater to the engine oil sump, the fuel tank is made independent of the top ivnoy engine system. In the particular case of execution, the autonomous engine pre-start preparation system may contain an additional fuel pump, and the pre-heater, liquid and fuel pumps, as well as the fuel tank, fuel lines and pipes connecting the heater to the piping system, are placed in a separate housing.

The implementation of the fuel tank independent of the fuel system of the engine allows for uninterrupted supply of fuel to the heater, to make this system autonomous. An additional fuel pump allows the system to be operational when one of the fuel pumps fails.

The implementation of the heater fuel system of an autonomous, independent of the engine fuel system, eliminates the long fuel lines of the fuel supply to the heater. The consequence of this implementation is to obtain good performance in speed

system response, reliability, and, as a result, improved performance.

The placement of the fuel tank, fuel lines and pipes connecting the heater with the piping system in a separate housing also positively affects the uninterrupted supply of fuel to the heater, makes this system autonomous, which positively affects its operational characteristics. In addition, the placement of system elements in a separate case allows you to quickly install and fix them on the frame, which positively affects the maintainability and reliability of the system, improves the operational properties of the device as a whole.

The automatic engine start-up system is compact and independent of the engine fuel system.

The analysis of the prior art, including a search by patent and scientific and technical sources of information, made it possible to establish that an analogue, characterized by features identical to all the essential features of the claimed technical solution, was not found. Based on the foregoing, we can conclude that the claimed technical solution meets the criterion of "novelty."

The claimed technical solution is illustrated by the following drawings:

FIG. 1- autonomous engine pre-start preparation system, general view;

FIG. 2 - the same, top view;

FIG. 3 - autonomous engine pre-engine preparation system mounted on the frame, side view;

FIG. 4 - same, top view.

An autonomous engine pre-treatment system comprises a pre-heater 1 with a liquid pump 2 and two fuel pumps 3, a fuel tank 4, fuel lines 5, a piping system 6 and a pipe 7. A pump 2 circulates the coolant between the pre-heater 1 and the engine 12 through a piping system

4 6. Pumps 3 are designed to supply fuel to the heater 1 from the fuel tank 4, which is made independent of the fuel system of the engine. Fuel pumps 3 are installed between the fuel tank 4 and the heater 1. Fuel pumps 3 can be installed directly on the fuel tank 4. The fuel lines 5 are designed to communicate the said nodes with each other. The pipeline 7 serves to divert combustion products from the heater 1 to the oil sump 8 of the engine. The pipeline 7 is connected to the heater 1 through nozzles 10. Two fuel pumps 3 provide the required cyclic fuel supply in various modes: small, medium, full, and if one of the fuel pumps fails, the heater remains operational.

In the particular case of execution, the pre-heater 1, liquid and fuel pumps, 2 and 3, respectively, as well as the fuel tank 4, fuel lines 5, pipes 9 connecting the heater 1 with the piping system 6, are placed in a separate housing 11.

The implementation of the heater fuel system of an autonomous, independent of the engine fuel system, eliminates the long fuel lines of the fuel supply to the heater.

The claimed technical solution allows you to create an autonomous system of prestarting heating, with high reliability.

The inventive system meets the requirements of industrial applicability and can be performed on standard technological equipment using modern materials and technologies.

Claims (3)

1. An autonomous engine pre-treatment system, comprising a pre-heater with a liquid pump designed to circulate the coolant between the pre-heater and the engine through a piping system, a fuel pump designed to supply fuel from the fuel tank to the heater through the fuel pipe, and a combustion exhaust pipe from a heater to an engine oil crankcase, characterized in that the fuel tank is made independent of the engine fuel system. 2. The autonomous engine pre-treatment system according to claim 1, which contains an additional fuel pump. 3. The autonomous engine pre-preparation system according to claim 1 or 2, in which the pre-heater, liquid and fuel pumps, as well as the fuel tank, fuel lines and pipes connecting the heater to the piping system, are housed in a separate housing.