Apparatus for controlling the exhaust gas recirculation rate in

Details Apparatus for controlling the exhaust gas recirculation rate in Apparatus for controlling the exhaust gas recirculation rate in

1982-03-16

1984-01-24

Burns, Wendell E.

Internal-combustion engines

Multiple cylinder

Having rotary output shaft parallel to cylinders

123569, 123323, F02M 2506

Patent

active

044269862

ABSTRACT:
An apparatus is proposed for controlling the exhaust recirculation rate in an internal combustion engine, in particular an engine with auto-ignition, which includes preferably one mixture valve in the area of the discharge opening of the exhaust recirculation line and which is characterized in that the control is accomplished via the mixture valve position ahead of the inlet valves in accordance with the concentration of at least one component of the air-exhaust gas mixture and/or at least one component of the exhaust gas. Thus it is possible to operate the engine with a relatively emission-free exhaust. An exhaust gas reservoir is further provided, with which peaks in the exhaust gas concentration due to a dynamic driving mode can be intercepted. Finally, it is also proposed that the exhaust recirculation be realized solely via a pressure, which can be controlled in open-loop or closed-loop fashion, in the exhaust line by means of a valve.

REFERENCES:
patent: 3851632 (1974-12-01), Teshirogi et al.
patent: 3925989 (1975-12-01), Pustelnik
patent: 4071003 (1978-01-01), Aono
patent: 4168683 (1979-09-01), Hata et al.
patent: 4237837 (1980-12-01), Toda et al.
patent: 4300516 (1981-11-01), Hayakawa
patent: 4375800 (1983-03-01), Otsuka et al.
patent: 4380988 (1983-04-01), Otsuka et al.
patent: 4388909 (1983-06-01), Ogasawara et al.

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