Fuel expander

• US 4,406,270 A
• Filed: 03/12/1981
• Issued: 09/27/1983
• Est. Priority Date: 03/12/1981
• Status: Expired due to Fees

• Current Assignee: William B. Simonson Sr
• Original Assignee: William B. Simonson Sr
• Inventors: Simonson, William B. Sr.
• Primary Examiner(s): Lazarus, Ronald H.
• Application Number:
  US06/241,430
• Time in Patent Office: 929 Days
• Field of Search: 123/557, 165/51, 165/52
• US Class Current: 123/557
• CPC Class Codes: F02B 1/04 with fuel-air mixture admission into cylinder
• CPC Class Codes: F02M 31/10 by hot liquids, e.g. lubricants or cooling water
• CPC Class Codes: F02M 31/16 Other apparatus for heating fuel
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A fuel expander (10 ) is inserted into a heater hose (14), coolant is passed through tube member (12) to the heater inside the passenger compartment of the vehicle, or alternatively from the member (12) through diversion pipes (32), through valve (34), and back to the water pump on the engine. Fuel flows through a first expansion chamber (25), into a fuel expansion chamber (18), through a second expansion chamber (27) and then to the carburetor on the engine.

Claims

1. A fuel expander to provide greater fuel economy for a vehicle using a liquid cooled internal combustion engine, comprising:

(a) an elongated tubelike member inserted into a heater hose of the vehicle by cutting and clamping each cut end of the hose to opposite ends of said member, to allow for engine coolant normally going from the engine to the heater coils in the passenger compartment to be passed through the elongated tubelike member;

(b) an elongated envelope encircling said elongated tubelike member and sealed to the outer surface near each end of said tubelike member to define a fuel heating chamber encircling said elongated member;

(c) said envelope including first and second tubes projecting from said envelope, said tubes located near opposite ends of said envelope and open to said fuel heating chamber;

(d) a first housing defining a first expansion chamber and connected to said first tube to provide fuel communication from the fuel pump on the engine, through said first housing, through said first tube, through said envelope, through said second tube to the carburetor on the engine, said first expansion chamber allowing fuel in the fuel heating chamber of said envelope to expand into said first expansion chamber;

(e) a second housing defining a second expansion chamber and connected to said second tube to provide fuel communication from said fuel heating chamber through said second tube, through said second expansion chamber to the carburetor of the engine, said second expansion chamber allowing fuel in the fuel heating chamber of said envelope to expand into said expansion chamber;

(f) a bypass pipe connected to said elongated tubelike member and to a second heater hose of the vehicle; and

(g) a bypass valve in said bypass pipe to selectively allow coolant to be passed through the elongated member, through the bypass pipe and valve and back to the engine without going through heater coils in the passenger compartment.

2. The apparatus of claim 1, comprising a first fuel filter in said first housing.

3. The apparatus of claim 2, comprising a second fuel filter in said second housing.