Changeable venturi carburetor including a cold start and high loading auxiliary fuel duct
AssigneeWen-Hsien Huang
InventorMing-Ching Wang
Life of this patent
Estimating the term…
Abstract
A changeable Venturi carburetor includes an auxiliary fuel which has a vacuum valve and a temperature delay vacuum valve. The vacuum valve has a third air nozzle connecting with a second air nozzle in the temperature delay vacuum which further has a first air nozzle communicating with the main throttle of the carburetor. Through the temperature delay vacuum valve, air pressure at the main throttle will be transmitted to the vacuum valve which then controls auxiliary fuel supply to increase engine output power. As a result, engine cold start may be done easily and smoothly, and warm up done in a short period of time. It can also increase engine power by providing additional fuel to the engine during sudden acceleration or high situation.
Claims5
A changeable Venturi carburetor including a cold start and high loading auxiliary fuel duct comprising:
- a carburetor having a front frame, a body, a back seat and a float chamber;
- the body including at least a changeable Venturi means which has a steel rope wheel and a butterfly valve, and a main fuel duct system which has a main throttle and a fuel pin;
- and
- an auxiliary fuel duct including a vacuum valve and a temperature delay vacuum valve engageable with the carburetor, the vacuum valve having at one end a third air nozzle connecting with a first air nozzle in the temperature delay vacuum valve, the temperature delay vacuum valve further having a second air nozzle communicating with the main throttle, the second air nozzle connectable with the first air nozzle for air pressure at vicinity of the main throttle to transmit to the third air nozzle to control the vacuum valve motion and fuel supply of the auxiliary fuel duct.
Dependencies are inferred from the claim text.