RU1776835C - Power unit of transportation vehicle - Google Patents

Abstract

The invention relates to transport and power engineering, in particular to power devices of vehicles, and improves the efficiency of the heating system, the durability and reliability of the neutralization system. SUMMARY OF THE INVENTION: A vehicle power plant comprises a neutralization system comprising a neutralizer, comprising a housing 2 with an input 3 and an output 4 nozzles for communicating the neutralizer with an exhaust 13 tons of 8 manifold 5 of the reactor of the reactor 7 with internal 8 and external 9 walls, a tubular annular heat exchanger 10 made of outer and coaxial inner parts with the formation of an annular gap between them, in which the catalyst is placed. Both parts of the heat exchanger 10 are placed on the surface of the inner wall 8 of the reactor 7 and the outer surface of the Converter housing 2 with separate inlet pipes 11, 12 and a common outlet pipe 13 for communication of the heat exchanger 10 with a heating system having an engine, a liquid preheater heater, interior heaters, connecting pipelines with valves installed on them to turn off the heating system during the summer period of operation, communicating a tubular ring heat exchanger 10 only with a cooling system Denis engine. In order to maintain a constant temperature of the liquid in the tubular ring heat exchanger 10, a temperature controller 19 is installed on its outlet pipe 13. 2 s.p. f-ly, 3 ill. 9 g / & y / yo v4 x | 00 SB SP; / s Fig. 2

Description

The invention relates to transport and power engineering, in particular to power devices of vehicles.

Closest to the technical nature of the invention is a power plant of a vehicle, comprising an internal combustion engine and a catalytic converter, having a reactor with a catalyst made in the form of a spiral tubular heat exchanger connected to a liquid engine cooling system and mounted on an engine exhaust pipe. The disadvantage of such an installation is that it does not use the heat of gases and the exothermic reaction of the catalytic combustion in the converter, as well as the heat from the heating system and the engine preheating period to accelerate the start of operation of the converter.

The purpose of the invention is to increase efficiency,

This goal is achieved in that in a power plant of a vehicle containing an internal combustion engine and an exhaust gas catalytic converter having a reactor with a catalyst made in the form of a spiral tubular heat exchanger connected to a liquid engine cooling system and mounted on an engine exhaust pipe, a tubular heat exchanger made of external and coaxial internal parts with the formation of an annular gap between them, in which the neutralizer is placed p, wherein both sides are equipped with separate inlet and a common outlet port. In addition, the vehicle’s power plant is equipped with a liquid preheater heater, and the tubular heat exchanger is further connected to the latter. To maintain optimum fluid temperature, a temperature controller is installed at the outlet.

Figure 1 shows a diagram of the power plant of the vehicle; figure 2 is a longitudinal section of a converter; in Fig.3 - in Fig.1.

The power plant of the vehicle contains a neutralization system, which includes a converter 1, consisting of a housing 2 with an inlet 3 and an outlet 4 nozzles for communicating the converter 1 with the exhaust manifold 5 of the engine 6, the reactor 7 with the inner 8 and outer 9 walls, a tubular annular

a heat exchanger 10 made of external and coaxial internal parts with the formation of an annular gap between them, in which the catalyst is placed. Both

5 parts of the heat exchanger 10 are placed on the surface of the inner wall 8 of the reactor 7 and the outer surface of the housing 2 of the Converter 1 with separate inlet pipes 11, 12 and a common outlet pipe

0 13 for communication of the heat exchanger 10 with a heating system including an engine 6, a liquid preheater heater 14, interior heaters 15, connecting pipes 16 s

5 by valves 17 installed on them to turn off the heating system during the summer period of operation of the vehicle. thus, communicating the tubular ring heat exchanger 10 only with the cooling system 18 of the engines b. To maintain a constant temperature of the liquid in the tubular ring heat exchanger 10, a temperature controller 19 is installed on its outlet pipe 13.

The exhaust gases of the engine 6 using the exhaust manifold 5 through the inlet pipe 3 enter the housing 2

5 of the catalyst 1 and, having passed through the reactor 7, are removed through the outlet pipe 4. A tubular ring heat exchanger 10 is installed on the inner wall 8 of the reactor 7 and the outer surface of the housing 2 of the converter 1. To accelerate the functioning of the converter 1 and ensure uniform temperature distribution on the surface of the inner walls 8 of reactor 7 and

15 of the outer surface of the housing 2 of the converter 1, the tubular annular heat exchanger 10 is equipped with two exhaust pipes 11, 12 and a common exhaust pipe 13, which are in communication with the systems

0 heating-cooling fluid. In order to maintain a constant temperature of the liquid in the tube annular heat exchanger 10, a temperature controller 19 is installed on its outlet pipe 13, for example, a standard temperature controller of a throttle type. The placement of the tubular annular heat exchanger 10 on the inner wall 8 of the reactor 7 and on the outer surface of the housing 2 of the Converter 1 W

0 communicated heat exchanger 10 with heating systems-liquid cooling helps to accelerate the start of operation of the catalytic reactor 7 from the start of engine 6 in the winter period of operation

5 TS by heating the converter 1 (up to t /

80 ° C) using a tubular ring

heat exchanger 10 using at the moment

start-up heating engine b fe 20

minutes) the heat of the heating system operating in the preheating mode of the engine 6 using a liquid heater 14. The further heating of the catalytic reactor 7 before operation (t "220 + 250 ° C) occurs due to the heat of the gases entering the converter 1 from the moment the beginning of the functioning of the reactor 7, in addition to the heat of the gases, a large amount of heat is generated due to the exothermic reaction of the catalytic combustion of the exhaust gases. Therefore, there is a need to reduce the temperature and load of the inner 8 wall of the reactor 7. The heating of the catalytic reactor 7 and the housing 2 of the catalyst 1 to t «80 ° C in the winter period of operation helps to accelerate the start of functioning of the catalytic reactor 7 from the moment of starting the engine 6, and a further decrease in temperature loading both the walls 8 of the reactor 7 and the housing 2 of the converter 1 to t increases the reliability and durability of the converter 1 in winter and summer periods of operation. In addition, the use of gas heat and an exothermic reaction burn out increases the efficiency of the heating system in

/ at

6

Figure 1

winter period of operation of the vehicle.

Claims (3)

1. The power plant of the vehicle, containing an internal combustion engine and a catalytic converter of its exhaust gases, having a reactor with a catalyst, made in the form of a spiral tubular heat exchanger connected to the liquid cooling system of the engine, and mounted on the exhaust pipe of the engine, distinguished with that, in order to increase efficiency, the tubular heat exchanger is made of external and coaxial internal parts with the formation of an annular gap between them, in which The catalyst is located, with both parts having separate inlet and common outlet pipes. 2. Installation according to claim 1, characterized in that it is equipped with a liquid preheater heater, and the tubular heat exchanger is additionally connected to the latter. 3. Installation according to paragraphs. 1 and 2, characterized in that a temperature controller is installed on the outlet pipe. nineteen thirteen