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Device for the catalytic after-burning of exhaust gases in the exhaust gas system of an internal-combustion engine

Patent:

Abstract

The invention deals with a device which protects the catalyst for the after-burning of exhaust gases against damage by high temperatures. When the catalyst temperature reaches a certain limiting value, a throttle is activated by an electrical control device influenced by a temperature sensor via a servomotor. The throttle valve opens a by-pass for the exhaust gases which had previously flowed through the system for catalytic after-burning. In order to prevent the throttle from rusting due to its rare use, it is regularly put into use after switching off the ignition of the internal-combustion engine by the still briefly present oil pressure in the engine via an oil pressure switch and the mentioned control device.
Authors:
Publication Date:
Jun 19, 1975
Product Type:
Patent
Report Number:
DE 2360581; A
Reference Number:
ERA-02-035624; EDB-77-074188
Resource Relation:
Other Information: 1 fig. Available from Dt. Patentamt, Muenchen (FRG)
Subject:
33 ADVANCED PROPULSION SYSTEMS; AFTERBURNERS; DESIGN; AUTOMOBILES; CATALYSTS; CATALYTIC CONVERTERS; ELECTRICAL EQUIPMENT; EXHAUST GASES; INTERNAL COMBUSTION ENGINES; TEMPERATURE DEPENDENCE; ENGINES; EQUIPMENT; GASEOUS WASTES; POLLUTION CONTROL EQUIPMENT; VEHICLES; WASTES; 330700* - Advanced Propulsion Systems- Emission Control
OSTI ID:
7310868
Country of Origin:
Germany
Language:
German
Submitting Site:
DE
Size:
Pages: 7
Announcement Date:

Patent:

Citation Formats

Lange, K. Device for the catalytic after-burning of exhaust gases in the exhaust gas system of an internal-combustion engine. Germany: N. p., 1975. Web.
Lange, K. Device for the catalytic after-burning of exhaust gases in the exhaust gas system of an internal-combustion engine. Germany.
Lange, K. 1975. "Device for the catalytic after-burning of exhaust gases in the exhaust gas system of an internal-combustion engine." Germany.
@misc{etde_7310868,
title = {Device for the catalytic after-burning of exhaust gases in the exhaust gas system of an internal-combustion engine}
author = {Lange, K}
abstractNote = {The invention deals with a device which protects the catalyst for the after-burning of exhaust gases against damage by high temperatures. When the catalyst temperature reaches a certain limiting value, a throttle is activated by an electrical control device influenced by a temperature sensor via a servomotor. The throttle valve opens a by-pass for the exhaust gases which had previously flowed through the system for catalytic after-burning. In order to prevent the throttle from rusting due to its rare use, it is regularly put into use after switching off the ignition of the internal-combustion engine by the still briefly present oil pressure in the engine via an oil pressure switch and the mentioned control device.}
place = {Germany}
year = {1975}
month = {Jun}
}