DE1094044B - Device for avoiding oil condensation in the exhaust of internal combustion engines - Google Patents

Description

The invention relates to a device for avoiding oil condensate residues in the exhaust of Internal combustion engines, in particular two-stroke engines, by burning what is entrained in the exhaust gases Lubricating oil by means of the inherent heat of the exhaust gases, which flow in countercurrent through coaxial chambers be directed.

It is one of several mufflers with built-in components and their connecting lines existing exhaust system has already been proposed, the smoking of the exhaust gases containing lubricating oil of two-stroke engines through a heat-insulating layer or an insulating air cushion, which the Internal temperature increased, to avoid. Such an afterburning can, however, occur in the case of lightly polluted Can only be sustained if the entire exhaust line from the cylinder outlet to the engine Mufflers are also thermally insulated, which requires a considerable amount of heat-resistant and insulating Material as well as construction volume and assembly ao required.

The invention avoids this deficiency in that the exhaust manifold running along the cylinders is enclosed by a jacket pipe through which the exhaust gases flow in the opposite direction, its wall from the short, for the direct connection of the exhaust manifold with the outlet channels the individual cylinder serving connection piece is penetrated, and that on the closed The end face of the jacket tube is a known per se, through an annular baffle wall from the jacket tube partitioned, open to the open end face of the manifold chamber is arranged. By doing so the place the afterburning as close as possible to the engine side and the heat-insulating material through Countercurrent heating is saved, the exhaust system to be connected to the exhaust manifold can be used be constructed with the mufflers in the cheap conventional way.

An embodiment of the invention is shown schematically in the drawing.

The first or inner chamber 1 is expediently made of a cylindrical body, e.g. B. a tube 2, formed, whose right end face 3 in the drawing is closed, while the end face 4 remains open. * 5 To connect to the exhaust ducts of the engine go from this pipe, running perpendicular to the longitudinal axis, Nozzle 5. The chamber 1 is surrounded with a space in between by a second or outer chamber 6, which also expediently consist of a cylindrical body, e.g. B. a tube 7, there is. This Tube is closed at the left end face 8, while it is with its open end face 9 with the not shown exhaust line is connected.

Device to avoid

of oil condensate residues in the exhaust

of internal combustion engines

Applicant:

Ford-Werke Aktiengesellschaft,
Cologne, Henry-Ford-Strasse

Waldemar Werner, Cologne-Klettenberg,
has been named as the inventor

Within the left side of the chamber 6, the end face 8 is adjacent by a vertical partition 10 a further chamber 11, a so-called one, which is open towards the left end wall 4 of the first chamber 1 Spark chamber, separated.

The exhaust gases enter chamber 1 in the direction of arrows 12 and collide with its inner wall, whereby the unburned particles separate out. The direction of the arrows 13 to the open end face 4 Flowing gases are here, as indicated by the arrows 14, deflected into the chamber 6 and flow around it the first chamber until they enter the exhaust line at the end face 9. Through this flow around the wall of the chamber 1 is always on one for the combustion of the separated particles necessary temperature. The sparks occurring in the chamber 1 are caused by the Gas flow thrown into the spark chamber 11 and go out there.

It can e.g. B. closed the open end face 4 of the chamber 1 by a perforated sheet metal and others suitable perforations can be provided on the tube 2. The chamber 1 can consist of relatively thin sheet metal, to ensure low heat capacity.

Claims (1)

Claim: Device to avoid oil condensate residues in the exhaust of internal combustion engines, especially two-stroke engines, through combustion of the lubricating oil carried along in the exhaust gases by means of the inherent heat of the exhaust gases, which are passed in countercurrent through coaxial chambers, characterized in that the exhaust manifold running along the cylinder through one of the exhaust gases in the opposite direction surrounded by the flowed jacket pipe (7) 009 650/235 is the wall of the short, for the direct connection of the exhaust manifold (2) the connecting pieces (5) serving the outlet channels of the individual cylinders are penetrated, and that on the closed end face (8) of the jacket tube (7) a known per se, by a ring-shaped baffle wall (10) separated from the jacket pipe towards the open end face (4) of the collecting pipe (2) towards the open chamber (11) is arranged. Considered publications: German Patent Nos. 866876, 926578; German Auslegeschrift No. 1010785; British Patent No. 158444. 1 sheet of drawings