Rotating speed control apparatus for an internal combustion engine

Patent · Tue Oct 06 00:00:00 EDT 1987

OSTI ID:5977490

Umehara, K

A rotating speed control apparatus is described for controlling the rotating speed of an internal combustion engine, comprising: a capacitive discharge ignition circuit; rotating speed detecting circuit means for monitoring the rotating speed for the engine; overspeed preventing circuit means cooperable with the capacitive discharge ignition circuit and responsive to the rotating speed detecting circuit means; and independently manually actuable cut-off circuit means for disabling the overspeed preventing circuit means so as to prevent the overspeed preventing circuit means from limiting the rotating speed of the engine; wherein the cut-off circuit means includes a reset switch and is actuated in response to manual actuation of the reset switch; wherein the reset switch is a momentary push button switch; wherein following manual actuation of the momentary push button switch the cut-off circuit means remains continuously actuated until the engine is stopped, and wherein at a subsequent restart of the engine the cut-off circuit means is deactuated; wherein the ignition circuit includes a capacitive charging coil, wherein the push button switch has first and second terminals; and wherein the cut-off circuit means includes: a thyristor; a first resistor; a second resistor; a third resistor; a capacitor; first means electrically coupling the capacitive charging coil of the ignition circuit to the first terminal of the push button switch; and second means electrically coupling the anode of the thyristor to the overspeed preventing circuit means.

• Assignee: Suzuki Jidosha Kogyo Kabushiki Kaisha, Shizuoka
• Patent Number(s): US 4697560
• OSTI ID: 5977490
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ANGULAR VELOCITY
AUTOMATION
CAPACITORS
CONTROL SYSTEMS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
OPERATION
RESISTORS
SEMICONDUCTOR DEVICES
SWITCHES
THYRISTORS
VELOCITY