RU188244U1 - EXHAUST MANIFOLD OF THE INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

The utility model relates to engine building, and in particular to the design of an exhaust system in internal combustion engines. The exhaust manifold of the internal combustion engine is made of heat-resistant cast iron. The exhaust manifold of the internal combustion engine contains a pipeline (1), six pipes (2), (3), (4), (5), (6), (7) with flanges (8), (9), (10), (11), (12), (13) fastening to the cylinder heads of an internal combustion engine. The axis of the pipes (2), (3), (4), (5), (6), (7) are located perpendicular to the axis of the pipeline (1). Behind the pipe (4), a compensator (14) is installed with a liner (15), which is located between the parts of the pipeline (1) and is fixed on both sides by U-shaped clamps (16). On the flanges (11), (12) of the nozzles (5), (6), stiffening ribs (17) are located to give rigidity and strength. On one of the components of the pipeline (1), a flange (18) is made for connection with a turbocharger (19). On the flange (18) in the place of attachment to the turbocharger (19) there are stiffeners (20). Pipes (2), (3), (4), (5), (6), (7) with flanges (8), (9), (10), (11), (12), (13) pipeline (1) connected to the cylinder heads of an internal combustion engine by means of a bolted connection. A utility model was created that improved reliability and durability during operation of the exhaust manifold of an internal combustion engine. 1 s.p. f-ly, 3 ill.

Description

The utility model relates to engine building, and in particular to the design of an exhaust system in internal combustion engines.

A known exhaust manifold of an internal combustion engine, comprising a connecting flange for attaching to the cylinder head of the internal combustion engine and an exhaust flange for attaching to the exhaust gas converter or to the exhaust pipe of the exhaust gas path, connected by exhaust pipes of various lengths, wherein the collector is cast with minimal gulfs wall thicknesses in the mating zones of the exhaust pipes and the exhaust flange, and the connection of the internal sections of the exhaust pipes before release The flange is made at different levels, with the outlet pipe of the first cylinder located below the other pipes (see Utility Model Patent RU No. 106659 U1, IPC F01N 13/10 (2010.01), published July 20, 2011).

A known exhaust manifold for an internal combustion engine, comprising a connecting flange for attaching a manifold to the body of an internal combustion engine and a flange for attaching a collector to an exhaust path, wherein separate exhaust pipes are mounted in the windows of the connecting flange, each of which is made of an integral section of a thin-walled heat-resistant pipe, the windows of the connecting flange and the connecting part of the outlet pipes located in them have a section in the form of elongated holes with rounded lateral ends mated with straight sections, the connecting part of each of the nozzles is mated to its cylindrical part by means of a diffuser section, the output ends of all exhaust pipes converge in a common gas mixing chamber, at the outlet of which a connecting flange with a common outlet is mounted (see patent for Utility model RU No. 72274 U1, IPC F01N 7/10 (2006.01), published on 04/10/2008).

Known exhaust manifold for a multi-cylinder internal combustion engine containing a pipe with nozzles located parallel to the crankshaft, and the nozzles have flanges for connection to the engine cylinders (see patent for invention JP No. 4568582 B2, IPC F01N 13/10 (2006.01), published on 27.10 .2010).

A known exhaust system of an internal combustion engine comprising an exhaust manifold with inlet pipes, each of which is connected to the exhaust pipe of one cylinder and forms a gas channel with a narrowing section, and with a mixing chamber located at the end of this section, to which an additional tank is connected, and the narrowing section is made at the end of each exhaust pipe of the cylinder, and the additional capacity is divided into sections according to the number of engine cylinders and each section is made integral with the mixing chamber a cavity disposed in the junction between the narrowing portion of one of the outlet ports of the cylinder to a supply conduit header (see. av. binding. SU№1474303 A1, IPC ⁴ F02B 37/02, published 23.04.1987).

A welded manifold of an internal combustion engine is known, comprising connecting flanges connected by several pipes of different lengths made up of separate nozzles, while the nozzles of shorter pipes are made of prefabricated pipes of three telescopically mounted pipe ends that are welded at the ends in series, forming a zigzag (see patent for the invention RU No. 2242622 C2, IPC F01N 7/10 (2000.01), published on December 20, 2004).

Known air manifold containing a hollow housing having an inlet for the passage of air flow into the cavity inside the housing, exhaust openings for the passage of air from the cavity into the channels in the cylinder head of the engine, in the manifold housing there is a fuel channel for receiving gaseous fuel, in the fuel channel at its inlet there is a fitting for connecting the fuel pipeline, at the intersection with the fuel channel in the manifold body, sockets for installing nozzles for injecting gaseous Pliva air streams directed through the outlets in the manifold head cylinder (see. the utility model patent RU №159513 U1, IPC F02M 21/02 (2006.01), F02M 35/10 (2006.01), published on 02.10.2016).

A known exhaust manifold for an engine comprising a cast housing defining at least two exhaust nozzles for exhaust gases and a common exhaust outlet, each of the exhaust nozzles having a corresponding flange for attaching the exhaust manifold to the engine, is inserted between adjacent flanges essentially rigid gasket for tight fit in a cold exhaust manifold, which is fixed in position between adjacent flanges (see patent of the invention e No. 2606461 C2, IPC F01N 13/10 (2010.01), F01N 13/18 (2010.01), published on 01/10/2017).

A known exhaust manifold for an internal combustion engine comprising a main pipe, consisting of an outer pipe and a thin-walled inner pipe with an annular space between them, three nozzles with flanges, while the sections of the nozzles are relatively short and of the same length, so that the axis of the center line of the main pipe passes parallel to the mounting flanges (see DE patent No. 4200611 A1, IPC ⁵ F16L 9/18, published July 15, 1993).

A known exhaust manifold of an internal combustion engine, consisting of exhaust pipes, mounting flanges of the exhaust pipes, contains stiffeners that are made between the pipes of the second and third cylinders, on the pipes of the first and fourth cylinders, and on the pipes of the first and fourth cylinders the ribs are made in this way that one stiffener is parallel to the axial line of the nozzles from the inlet flange and one stiffener located on the upper side of the nozzle is made in in the form of platforms that, when approaching the flanges of the nozzles to the cylinder head, smoothly transition into two ribs from the front and rear sides of the nozzle, and on the opposite side, the ribs are connected to the ribs that fall along the planes tangent to the nozzles of the second and third cylinders, respectively, from the nozzle the second cylinder to the nozzle of the first cylinder and from the nozzle of the third cylinder to the nozzle of the fourth cylinder (see utility model patent No. 151680 U1, IPC F01N 13/10 (2010.01), published on 04/10/2015).

A known exhaust manifold of an internal combustion engine comprising a pipeline and at least two curved inlet nozzles for connecting to the engine cylinders connected to the pipeline at an acute angle, with plates parallel to its axis and perpendicular to the plane passing through the axis of the intake pipes in rows moreover, each row of plates forms a curve lying on the continuation of the pipe wall most distant from the center of curvature (see Av. St. SU No. 1262071 A1, IPC ⁴ F01N 7/10, ⁴ F02B 37/02, published Vano 10.10.1986).

A known exhaust manifold of an internal combustion engine containing a pipe with open and blind ends with exhaust pipes of cylinders and an outer casing installed with a gap relative to the pipe, while in the gap partitions are installed that divide it into longitudinal compartments (see av. St. SU No. 1377424 A1, IPC ⁴ F01N 7/14, published 02.29.1988).

A known diesel exhaust manifold comprising a housing with nozzles and flanges is provided, the collector is externally provided with a hollow chamber with a lid to accommodate the cartridge, an air cavity is made between the chamber and the collector, and the lid has a vapor outlet (see av. St. SU No. 909240, IPC T01N 7/10, published 02.28.1982).

The prototype of the claimed technical solution according to the set of essential features and the technical result achieved is the exhaust manifold of an internal combustion engine containing a pipeline and at least two curved inlet nozzles with flanges for connecting to the engine cylinders connected to the pipeline at an acute angle, while in the pipeline in rows plates are installed, an additional reactor is installed, covering plates and made with windows, the centers of which are located on the axes of the pipe s, and the plates are provided with webs connected to the reactor to form the honeycomb structure blocks (see. av. binding. SU №1679042 A2, IPC ⁴ F01N 7/10, ⁴ F01N 3/10, published 23.09.1991).

Known solutions in most cases do not provide reliability, in addition, when working in a high temperature zone, due to thermal linear expansions, it becomes possible to change the geometry of the nozzles, to increase warpage of the exhaust manifold, as well as to violate the tightness of the exhaust channel, thereby worsening the conditions for dismantling the manifold parts during repair and to a high probability of cracking.

The objective of this utility model is to increase reliability and durability.

The task is achieved in that the exhaust manifold of the internal combustion engine, containing a pipeline to which nozzles with flanges are attached to the cylinder heads of the engine, is made integral and additionally equipped with a compensator with an insert located between the parts of the pipeline, while the compensator is fixed on both sides U- with clamps, the axis of the nozzles are perpendicular to the axis of the pipeline, and there are stiffeners on the two flanges of the nozzles. In the particular case of execution, a flange is made on one of the pipeline parts for connection with a turbocompressor, and a stiffener is located on the flange.

The set of distinctive features, namely, that the exhaust manifold of the internal combustion engine is made integral and additionally equipped with a compensator with a liner located between the parts of the pipeline, while the compensator is fixed on both sides with U-clamps, the axis of the nozzles are perpendicular to the axis of the pipeline, and on two the flanges of the nozzles have stiffeners, which improves reliability and durability.

An analysis of the known technical solutions, carried out according to scientific, technical and patent documentation, showed that the set of essential features of the claimed technical solution is not known from the prior art, therefore, it meets the patentability condition of the utility model “novelty”.

The utility model is illustrated by the following drawings:

FIG. 1 - exhaust manifold of an internal combustion engine, general front view;

FIG. 2 - the same, in the context;

FIG. 3 - the same, complete with a turbocharger on an internal combustion engine.

The exhaust manifold of the internal combustion engine is made of heat-resistant cast iron. The exhaust manifold of the internal combustion engine contains a pipe 1, six nozzles 2, 3, 4, 5, 6, 7 with flanges 8, 9, 10, 11, 12, 13 attached to the cylinder heads of the internal combustion engine. The axis of the pipes 2, 3, 4, 5, 6, 7 are perpendicular to the axis of the pipe 1. Behind the pipe 4 there is a compensator 14 with a liner 15, which is located between the parts of the pipe 1 and is fixed on both sides by U-clamps 16. On the flanges 11, Stiffening ribs 17 are located for 12 stiffening pipes 5, 6 for imparting rigidity and strength. A flange 18 is made on one of the components of the pipeline 1 for connection with a turbocharger 19. On the flange 18 there are stiffening ribs 20 in the place of attachment to the turbocharger 19.

The nozzles 2, 3, 4, 5, 6, 7 with flanges 8, 9, 10, 11, 12, 13 of the pipe 1 are connected to the cylinder heads of the internal combustion engine using a bolted connection.

The compensator 14 together with the U-shaped clamps 16 ensure the reliability of the connection, the existing ribs 17 on the flanges in combination of features provide reliability and durability of the exhaust manifold as a whole, excluding the formation of cracks on the parts, in addition, there is no movement of the flanges of the pipes relative to the plane of attachment to the head engine cylinders, thereby increasing the service life.

The exhaust manifold is as follows.

When the internal combustion engine is operating at high temperatures, the exhaust gases pass through the internal cavity of the nozzles 2, 3, 4, 5, 6, 7, and then along the curve formed by the surface of the blocks, the flow gradually changes direction and enters pipeline 1, then through the pipeline 1 enters the turbocharger 12, thereby spinning the turbine wheel. Further, the exhaust gases through the exhaust system exit into the atmosphere.

The claimed technical solution allows to ensure the tightness and reliability of the connection, which in combination of features increases the service life of the exhaust manifold.

The inventive utility model meets the requirement of industrial applicability, its implementation is possible on standard technological equipment using previously developed technologies.

Claims (2)

1. The exhaust manifold of an internal combustion engine, comprising a pipeline to which nozzles with flanges are attached to the cylinder heads of the engine, characterized in that the exhaust manifold is made integral and additionally equipped with a compensator with a liner located between the parts of the pipeline, while the compensator is fixed on both sides U-clamps, pipe axes are perpendicular to the pipeline axis, and there are stiffeners on the two flanges of the pipes. 2. The exhaust manifold of an internal combustion engine according to claim 1, characterized in that on one of the parts of the pipeline a flange is made for connection with a turbocharger, and a stiffener is located on the flange.

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