Diesel engine with catalytic converter

Details Diesel engine with catalytic converter Diesel engine with catalytic converter

2006-06-20

2006-06-20

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C060S274000

Reexamination Certificate

active

07063072

ABSTRACT:
Diesel engine with unit injectors and a catalytic converter arranged in the engine exhaust system, for reaction with uncombusted fuel. The injectors have spill valves, which in their closed position build up pressure in the injectors, and needle control valves, which in their closed position keep the needle valves of the injectors closed and which, when they are open, open the needle valves. The unit injectors have pump plungers, which are driven by individual cam elements whit a cam curve shaped so that a pressure is maintained in the injects for so long a period during one cycle that injection of fuel is permitted at least when an associated exhaust valve in the combustion chamber begins to open so late during the expansion stroke and temperature drop, that fuel after injection is not combusted in the cylinder but reaches the catalytic converted uncombusted.

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Patent Abstracts of Japan, abstract of JP 5-156993 A (Hino Motors Ltd.) Jun. 22, 1993 , abstract.
Patent Astracts of Japan, abstract of JP 59-68512 A (Diesel Kiki K.K.), Apr. 18, 1984, abstract.

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