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US 6,209,523 B1Granted
Control and safety valve arrangement in a fuel feeding system
AssigneeWartsila NSD OY AB
InventorKai Lehtonen
Life of this patent
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AssigneeWartsila NSD OY AB
InventorKai Lehtonen
Estimating the term…
A control and safety valve arrangement in a fuel feeding system of an internal combustion engine, especially a large diesel engine, in which fuel is pumped from a fuel tank at least to one common pressure accumulator unit (1) and is fed therefrom under high pressure to be injected at least into two cylinders of the engine. The pressure accumulator unit (1,1a) is connect to the fuel tank with a separate return flow line (5,6,7), which is provided with valve means provided with two separate control arrangements operationally independent on each other so that the pressure accumulator unit (1) can be connected to the fuel tank by means of a first control arrangement under the influence of a separate control pressure when necessary and in addition by means of a second control arrangement in case the pressure in the pressure accumulator unit (1) exceeds a certain selected limit value.
A valve arrangement for a fuel feeding system of an internal combustion engine, especially a large diesel engine, comprising:
A fuel feeding system for an internal combustion engine, especially a large diesel engine, comprising a fuel tank, a pressure accumulator unit, a source of control fluid under pressure, and a valve arrangment, the valve arrangement comprising:
Dependencies are inferred from the claim text.