Method and apparatus for fuel recovery in internal combustion engines

Patent · Tue Dec 20 04:00:00 EST 1977

OSTI ID:5172288

Pace, A

An apparatus and method are described for recovering fuel from the induction system of an internal combustion engine having a carburetor, comprising one or a plurality of collectors along the fuel path between the carburetor throttle valve and the inlet valves of the engine. The collectors are in the form of annular recesses in the walls of the ducts, which recesses act to trap fuel which flows back as a liquid condensed onto the inlet manifold pipes as a reaction to the closure of the associated inlet valve of the engine. Each collector is connected by a drainage system of conduits via expansion tanks and a pump, to the petrol tank of the engine and/or to the inlet to the carburetor whereby fuel which condenses prior to being drawn into the engine can be recycled for vaporization thereby avoiding its entry into the engine as a liquid.

• Assignee: Fiat Societa per Azioni
• Patent Number(s): US 4063540
• OSTI ID: 5172288
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
ANNULAR SPACE
CONFIGURATION
CONTAINERS
CONTROL EQUIPMENT
DESIGN
DUCTS
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL ECONOMY
FUEL SYSTEMS
INTERNAL COMBUSTION ENGINES
RECOVERY
TANKS
VALVES