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US 2004/0187849 A1Published application
Fuel drain structure in fuel line
AssigneeHyundai Motor Company
InventorChang-Hyun Shin
Life of this patent
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Abstract
A fuel drain structure in a fuel line comprising a bypass channel for connecting a fuel influx side and a fuel efflux side of a regulator, and a rotary valve for opening and closing the bypass channel, contributing to a prevention of fuel remaining in the fuel line from entering the engine when the engine stops running, and minimization of pollution occurring when the engine is re-started.
Claims3
A fuel drain structure in a fuel line comprising:
- a regulator adjusting pressure of fuel pumped out from a fuel pump to a fuel line, including:
- a housing forming a chamber by coupling with a valve seat, a fuel inlet formed at one side of said chamber, a fuel outlet formed at said valve seat, a valve resiliently supported via a spring at an upper side of said valve seat;
- and
- a bypass channel directly connecting said fuel inlet and said fuel outlet of said regulator, such that the residual fuel inside said fuel line is forced to flow into a fuel tank through said bypass channel while the engine stops running.
1 more element
Dependencies are inferred from the claim text.