DE3027887A1

DE3027887A1 - IC engine exhaust afterburner - has flow-reversing combustion chamber, with gas stream broken up at main chamber inlet and outlet

Info

Publication number: DE3027887A1
Application number: DE19803027887
Authority: DE
Inventors: Hans Karl Dr. 7891 Küssaberg Leistritz
Original assignee: Individual
Current assignee: Individual
Priority date: 1970-11-09
Filing date: 1980-07-23
Publication date: 1982-03-04

Abstract

The IC engine exhaust afterburner has at least one flow-reversing combustion chamber. Gas enters this via a primary mixing/combustion space followed by a secondary of larger cross-sectional area. A baffle plate housing a sparking plug then reverses the flow, into a chamber extension with separate air supply forming an annulus around the inlet spaces. Metal perforated-sheet, or mesh, elements (20,21) at the secondary space (2) inlet and outlet ends mechanically subdivide the gas stream. The upstream element has a relatively large opening (22) in line between the primary space (1) outlet and plug (10).

Description

Beschreibung description

Diese Zusatzanmeldung zum Patent 20 55 001 stellt auf der Grundlage der im Hauptpatent dargestellten Erfindungsidee, die bei pulsierenden Strömen aus dem Motorauslaß zufließenden Abgasballen in möglichst kleinen Brennräumen zum Endausbrand zu bringen und durch Teilstromeinläufe in schräg ineinandertreffenden Gasstrahlen den nur zweidimensionalen Abbrand an den Hüllflächen der Strahlen in dreidimensionale Form zu konzentrieren, eine weiterführende Verbesserung dar. Sie besteht darin, daß die Erfindungsidee nicht nur in der Endausbrandphase, also von Brennraum 2 in Brennraum 3 zur Anwendung gelangt, sondern ebenso in der Vorstrecke (1), dem stromaufwärtigen Brenn- oder Mischraum, und in dem sekundären Brennraum0 Die Anordnung der Teilstrombildungselemente (25, 20/22, 21, 8, 23, 24) führt gleichzeitig zu einer strengeren Abgrenzung der einzelnen Paumelemente dfi Iachverbrennungseinrichtung, wie die beiliegende Zeichnung dies darstellt.This additional application to the patent 20 55 001 is based on the inventive idea presented in the main patent, which comes from pulsating currents Exhaust balls flowing to the engine outlet in the smallest possible combustion chambers for final burnout to bring and through partial flow inlets in obliquely intersecting gas jets the only two-dimensional burn-off on the envelope surfaces of the rays into three-dimensional ones Form of focus is a further improvement. It consists in that the inventive idea not only in the final burnout phase, i.e. from combustion chamber 2 in Combustion chamber 3 is used, but also in the preliminary section (1), the upstream one Combustion or mixing chamber, and in the secondary combustion chamber 0 The arrangement of the partial flow forming elements (25, 20/22, 21, 8, 23, 24) simultaneously leads to a stricter delimitation of the individual Paumelemente dfi afterburning device, like the accompanying drawing this represents.

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Claims

Name of the application: Insertion of mechanical partial flow forming elements in all combustion chamber groupsQ additional application for patent 20 55 001.

Claims 0 post-combustion device for the exhaust gases from internal combustion engines, with at least one reverse flow combustion chamber, consisting of a primary combustion or mixing chamber (1), a secondary combustion chamber of larger cross-section (2) with a the reversal of the exhaust gas flow causing reversal wall (5), a tertiary, im Countercurrent to the combustion or mixing space (1) through which the combustion chamber extension space flows (3), which surrounds the primary combustion or mixing chamber in a ring, and an ignition spark generator, according to patent 20 55 001 with an air inflow space (6) on the outer side of the reversing wall (5) is arranged and has air passages (8), which on the tertiary combustion chamber extension space (3) are directed and the inside of its air supply line (14) has a throttle valve has, which depends on the control element in the intake path of the internal combustion engine is, which controls the degree of filling of the internal combustion engine, and from an ignition tube is penetrated with ignition spark jump (10) arranged therein, the secondary The combustion chamber (2) is open, characterized in that in the upstream and one mechanical each in the downstream part of the secondary combustion chamber (2) Partial flow forming element made of perforated sheet metal or metal mesh is inserted (20 and 21) o 2 upstream partial power generation element according to claim 1, characterized in that that it is located approximately axially between the combustion or mixing space (1) and the ignition tube (10), a much larger passage space compared to the individual partial flow openings (22) has 3rd upstream6 partial flow forming element (20) according to one of the previous claims characterized in that the exhaust gas / Partial air flows directed at the ignition tube (10) meet in their following tSJegstrecken.

4. Downstream partial flow forming element (21) according to claim 1 characterized in that the exhaust gas / air substreams crossing it obliquely in the partial air flows are directed, which are directed from the air inflow space (6) in run into the tertiary combustion chamber space (3).

5. Primary combustion or mixing space (1) according to claim 1, characterized in that that in its upstream part a Teilstrombildungsele element (25) is provided is, whose exiting partial flows continue to flow into one another.

60 Downstream part of the combustion chamber follower room (3) and others downstream zones of other subsequent rooms characterized in that partial flow-forming elements are arranged in the transition zones to the following room element (23, 24).