FUEL SYSTEMS FOR VEHICLES, ESPECIALLY MOTOR VEHICLES

• US 3,692,051 A
• Filed: 12/29/1970
• Issued: 09/19/1972
• Est. Priority Date: 01/14/1970
• Status: Expired due to Term

• Current Assignee: Wolfgang Eyb
• Original Assignee: Wolfgang Eyb
• Inventors: Eyb, Wolfgang
• Primary Examiner(s): Klinksiek, Henry T.
• Application Number:
  US05/102,372
• Time in Patent Office: 630 Days
• Field of Search: 220/86F,20.5 123/119,136 137/544,571,575,576,587
• US Class Current: 137/544
• CPC Class Codes: B60K 15/03 Fuel tanks chassis frame comprising fluid storage compartment B62D21/16 ; Details of the fuel feeding system related to the fuel tank F02M37/0076
• CPC Class Codes: B60K 15/035 characterised by venting means
• CPC Class Codes: Y10T 137/794 With means for separating solid material from the fluid
• CPC Class Codes: Y10T 137/86324 Tank with gas vent and inlet or outlet

Abstract

A fuel system for vehicles, especially motor vehicles, consisting of a fuel tank provided with a filling nipple adapted to be closed off in a gas-tight manner by means of a cap, an outlet or discharge line, and an expansion tank connected to the fuel tank via a branch line. A throttle is inserted in the branch line to decrease the flow cross-section of the branch line.

Claims

1. Fuel system for vehicles, especially for motor vehicles, comprising a fuel tank, a filling nipple operatively connected with the fuel tank, cap means for closing off the filling nipple in a gas-tight manner, a discharge line connected with the fuel tank, an expansion tank, a branch line operatively connected between the expansion tank and the fuel tank, a vent line being operatively connected with the expansion tank, and a throttle means being provided in the branch line between the fuel tank and the expansion tank for reducing the flow cross-section of the branch line to limit the rate of flow of fuel between the fuel tank and the expansion tank.

2. Fuel system according to claim 1, wherein the branch line is connected with the fuel tank at the filling nipple.

3. Fuel system according to claim 1, wherein the throttle means comprises an intermediate part, which is inserted into the branch line, having a cross-section smaller by a multiple than the cross-section of the discharge line.

4. Fuel system according to claim 3, wherein the branch line is connected with the fuel tank at the filling nipple.

5. Fuel system according to claim 1, wherein the vent line directly communicates with the atmosphere.

6. Fuel system according to claim 1, wherein filter means is operatively connected with the vent line, the filter means having a discharge line adapted to be connected with the engine intake system and a fresh air line communicating with the atmosphere.