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US 4,649,884 AGranted
Fuel rail for internal combustion engines
AssigneeWalbro Corporation
InventorCharles H. Tuckey
Life of this patent
Estimating the term…
Abstract
A fuel rail for internal combustion engines utilizing fuel injectors which includes an elongate housing having an internal chamber with a fuel inlet near one end and a fuel outlet leading to a pressure regulator valve. The chamber is divided longitudinally by a flexible metal membrane which absorbs pulsations created by the injectors and stabilizes the fuel supply to the fuel injectors.
Claims6
A fuel rail for internal combustion engines for use with fuel injection units mounted on a fuel manifold of an engine which comprises:
- (a) an elongate housing having an elongate hollow chamber with a mounting side and a closed side, said mounting side having a fuel inlet adjacent one end and a fuel outlet adjacent the other end, and a plurality of ports spaced between said ends,
- (b) a fuel injector connected to each of said ports to receive fuel from said chamber,
- (c) a fuel source to furnish liquid fuel under pressure to said chamber through said inlet,
- (d) a pressure regulator connected to said fuel outlet to regulate fuel pressure in said chamber, and
- (e) a flexible diaphragm in said chamber dividing said chamber longitudinally and transversely into a fuel-side chamber exposed to said inlet and outlet and a dry-side chamber exposed to the closed side of said housing.
2 more elements
Dependencies are inferred from the claim text.