LPG fuel shutoff system
An LPG fuel shutoff system for use with a vehicle having an LPG fuel engine and having a solenoid valve to supply and shut off LPG fuel is described including: a relay having a relay contact which is closed when an electric current is fed to a coil of the relay; a pressure switch having a first position and a second position and adapted to be in the first position when engine oil pressure rises above a predetermined level; and an oil lamp adapted to light when the engine oil pressure is below the predetermined level, and wherein a solenoid coil of the solenoid valve is connected at one side to a battery through an ignition switch and a fuel switch. The solenoid coil also is connected, at another side of the solenoid coil, in series to the relay contact and the pressure switch in the second position respectively, the coil of the relay is connected to the solenoid valve side of the ignition switch through a starting switch, the oil lamp is connected between the ignition switch and the pressure switch.
- Assignee:
- Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya
- Patent Number(s):
- US 4721078
- OSTI ID:
- 5422122
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330100* -- Internal Combustion Engines
AUTOMOTIVE FUELS
CONTROL
CONTROL EQUIPMENT
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUIDS
FUEL SYSTEMS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUEFIED GASES
LIQUEFIED PETROLEUM GASES
LIQUIDS
NATURAL GAS LIQUIDS
OPERATION
PETROLEUM PRODUCTS
PRESSURE CONTROL
RELAYS
SOLENOIDS
SWITCHES
VALVES