Borgwarner Inc.

Other

Northwestern University

Ronald R Ralston

Herbert N Underwood

James R Blaha

Ralph Salle

Roy E Hunninghaus

Irving H Hallberg

Howard C Paul

An automated pavement repair vehicle includes a vehicle and its various computer-controlled subsystems. The various subsystems, including a vacuum system, heating system and spray patch system, for completing pavement repair, are located on the frame and rear of the truck. A robotic cell at the rear of the truck includes an assembly of retractable doors. The doors are lowered around the pothole to allow control of ambient conditions during the pavement repair procedure.

Spray patching pavement repair system

Automated pavement repair vehicle

Charge forming apparatus of the fluid jet type in which the tubular supply member is acutely angled with respect to the housing passageway and the slot therein is located closely adjacent to the passageway wall and to a location of initial opening of the pivoted butterfly valve in the passageway which controls the air flow across the slot and through the passageway.

Charge forming apparatus

In a system including a carburetor for regulating the air/fuel ratio fed to an internal combustion engine, a sensor is positioned in the exhaust pipe to provide a control signal indicating the amount of some exhaust gas constituent, such as oxygen. A control circuit is provided to regulate the position of a carburetor component, to change the air/fuel ratio as a function of the control signal derived from the exhaust gas sensor. This carburetor component is continually displaced, either toward a richer or leaner mixture condition, thus in effect integrating the signal from the exhaust gas sensor which ultimately regulates the air/fuel ratio. Operation of the control circuit is modified as a function of the engine speed and the engine temperature.

Control system for regulating air/fuel ratio

Growing community of inventors

Elmhurst, IL, United States of America

Ronald R Ralston