Anti-overrunning device for an internal combustion engine

Patent · Tue Mar 07 00:00:00 EST 1989

OSTI ID:6098089

Sejimo, Y; Tsubai, T; Tobinai, T

An anti-overrunning device for an internal combustion engine is described, consisting of (a) a carburetor having a venturi passage for a fuel and air mixture, (b) a throttle valve in the passage movable to open and closed positions to regulate the effective area of the passage, (c) an actuator including a diaphragm responsive to pneumatic pressure operatively connected to the throttle valve, (d) an inertial pump comprising a housing having a weighted diaphragm mounted on an engine and subject to engine vibrations to develop pneumatic pressure, the inertial pump having an inlet to receive atmospheric air and an outlet connected to the actuator, and (e) a vibration sensor in communication with the inertial pump inlet responsive to excessive vibration of the engine to connect the inlet to atmosphere to initiate pumping air from the outlet to the actuator to cause movement of the actuator diaphragm and the throttle valve in a closing direction to reduce the speed of the engine.

• Assignee: Walbro Far East, Inc., Kawasaki
• Patent Number(s): US 4809658
• OSTI ID: 6098089
• Resource Relation: Patent File Date: Filed date 29 Sep 1987
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
CARBURETORS
DESIGN
INTERNAL COMBUSTION ENGINES
ACTUATORS
FUEL-AIR RATIO
MECHANICAL VIBRATIONS
METERS
PNEUMATICS
PUMPS
VALVES
VENTURI TUBES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
FUEL SYSTEMS
HEAT ENGINES
MEASURING INSTRUMENTS
MECHANICS
330100* - Internal Combustion Engines