Patent ID: 8281770
Filing Date: 2012-10-09
Classification: F02M,Y02T

Abstract:
1. A vehicle oil-way catalytic fuel economizer comprising: a catalytic reactor, a heating box enveloping the catalytic reactor, an electrical heating temperature control unit, return oil regulating components and an oil-efficient return pipeline, wherein the catalytic reactor comprises a metal box, a catalytic stack sealed in the metal box, an inlet joint and an outlet joint, both the inlet joint and the outlet joint being connected with the catalytic stack; an oil inlet of the catalytic reactor is connected with an outlet of an oil pumping pipe, and an oil outlet of the catalytic reactor is connected with a manifold oil outlet pipeline of the vehicle engine; said oil-efficient return pipeline is connected at a location between an inlet of the catalytic reactor and an original return pipeline of the vehicle engine; the return oil regulating components are disposed on the oil-efficient return pipeline to ensure a suitable flow; said electric heating temperature control unit is a temperature controller used for ensuring stability of a selected temperature-control point; the heating box uses vehicle power for heating, and wherein said return oil regulating components include a flow control valve, an electromagnetic valve, a relay, a conduit, a through joint, a tee joint and wires; an inlet of the flow control valve is connected with the inlet of the catalytic reactor, an outlet of the flow control valve is connected with an inlet of the electromagnetic valve, and an outlet of the electromagnetic valve is connected with the original return pipelines of the vehicle engine, thus an oil-efficient return path is formed between the inlet of the catalytic reactor and the return pipelines of the vehicle engine; one wire of the electromagnetic valve is connected with a shell of the vehicle engine, and the other wire is connected to a normal open terminal of the relay and then to a starting switch of the vehicle; when the vehicle is started, the electromagnetic valve is opened, excessive fuel flows to the return pipelines of the vehicle engine from the inlet of the catalytic reactor and then flows to a fuel tank; one wire of a coil of the relay is connected with the shell of the vehicle engine, and the other wire is connected with a starting switch of the vehicle engine; when the vehicle is started, the relay produces electromagnetism after energization which attracts a spring piece at the normal open terminal of the relay, makes a short out or a circuit break at the normal open terminal, and closes the electromagnetic valve, so that the oil-efficient return pipeline of the catalytic fuel economizer is blocked; when the vehicle is working, a key of the vehicle returns to a working location of the vehicle engine, the relay is cut off, and the spring piece returns to a normal-open location, so that the electromagnetic valve forms an electric-loop which pulls the valve up so as to make the catalytic fuel economizer closed, and then the flow control valve is adjusted for appropriate return oil amount.