Hot-start solenoid valve
AssigneeMichael North
InventorMichael North
Life of this patent
Estimating the term…
Abstract
The present invention discloses an air-entrainment mechanism for carbureted engine. The mechanism includes a plunger valve controlled by a solenoid. The solenoid is powered by a battery with a switch electrically coupled thereto. The plunger valve is interconnected to the carburetor to allow additional air entrainment. The solenoid is coupled to the valve for opening and closing the valve. The switch electrically couples the solenoid to the battery to activate the solenoid for movement of the valve. The switch disclosed herein includes a temperature sensor and an engine-running sensor. The switch is then closeable when the temperature sensor detects an engine temperature within a predetermined range as long as the engine is not already running.
Claims37
A hot-start mechanism for an internal combustion engine carburetor having an airflow passageway, the mechanism comprising:
- a valve in fluid communication with the airflow passageway;
- an engine-running sensor interconnected with said processor, said engine-running sensor providing a signal to said processor indicative of whether said engine is running;
- an electrically-operated valve-movement mechanism operatively connected to said valve to selectively move said valve, activation of said valve-movement mechanism opening said valve when said engine-running sensor indicates that said engine is not running to admit additional air into the airflow passageway;
- and
- a valve switch electrically coupled to said valve-movement mechanism for activation of said valve.
A method of starting a carbureted engine, comprising the steps of:
- sensing if the engine is currently running;
- electrically opening an air-entrainment valve allowing additional air into the carburetor where the engine is sensed not to be running;
- cranking the engine until a running state is achieved;
- and
- closing the valve.
An air-entrainment mechanism for a carbureted engine, comprising:
- a sensor for sensing if the engine is running;
- a plunger valve interconnected to the carburetor;
- a solenoid coupled to said valve for opening said valve when the engine is sensed not to be running;
- a battery electrically connected to said solenoid, said battery powering the movement of said solenoid;
- and
- a switch electrically coupled to said solenoid to activate said solenoid for movement of said valve.
Dependencies are inferred from the claim text.