Carburetor deceleration emission control

Patent · Tue Sep 02 04:00:00 EDT 1975

OSTI ID:7180489

Furbacher, J H

A carburetor is described having separate primary and secondary air/fuel mixture induction passages each connected at one end to air at essentially atmospheric pressure and adapted to be connected at its opposite end to an engine intake manifold to be subject to the change in depression therein from a minimum level to a maximum vacuum force level occurring during engine deceleration conditions. A separate throttle valve is mounted for a rotatable movement across each of the passages between an open and closed position to control flow through the passage. One control is connected to the throttle valves to open the valves; the second is connected to the secondary induction passage throttle valve and operable independently of the first during engine deceleration to provide air/fuel mixture flow through the secondary induction passage.

• Assignee: Ford Motor Co.
• Patent Number(s): US 3957022
• OSTI ID: 7180489
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
330700 -- Advanced Propulsion Systems-- Emission Control
ACCELERATION
AUTOMOBILES
CONTROL EQUIPMENT
CONTROL SYSTEMS
EQUIPMENT
FLOW REGULATORS
FUEL SYSTEMS
FUEL-AIR RATIO
POLLUTION CONTROL EQUIPMENT
VALVES
VEHICLES