118results about "Float-controlled apparatus" patented technology

Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and / or between the fuel tank and the carburetor. A valve actuation device stops flow of fuel in one or more of the plurality of fluid paths and the carburetor is adapted to be drained of fuel during engine shutdown to reduce or prevent evaporative emissions from the fuel system. The carburetor is preferably designed so as to minimize a volume of fuel contained therein.

A carburetor including a mixture channel and an air channel that are separated from one another, wherein a fuel opening opens into the mixture channel. A throttle element is rotatable about an axis of rotation that extends transverse of the direction of flow in the mixture channel and in the air channel and extends through both channels. As a function of its position, the throttle element throttles a flow cross-section of the mixture channel and the air channel. The flow cross-section of a portion of the mixture channel and / or of the air channel has a non-circular shape in the vicinity of the throttle element.

The present invention is directed to control method for supplying water in a humidifier. In a conventional humidifier, when the water level in the base of the humidifier is lowered to the ON / OFF critical region, with the vibration of the water level, the floating ball in the base will make ten's or hundred's times of ON / OFF vibrations, which tends to damage the high frequency vibration circuit. In addition, when the humidifier is inclined, the magnet on the floating ball remains in the attractive state with the magnetic spring switch that may cause fire of the electrical wires and leakage of the electricity. In the present invention, the floating ball is directly placed within a water tank, so that the magnetic spring switch can be effectively driven to conduct the ON / OFF movement, and the power can be cut off immediately when the water level of the water tank is lowered to the minimum level. When the humidifier is turned over by external force, the water tank will become separated from the base of the humidifier, which will break the contact between the floating ball and the magnetic spring switch so as to cut off the power, assuring the safety and extending the use time of the humidifier.

Hot water (12) in a bath (11) is pumped up by a suction pump (9) and introduced into a carbon dioxide gas dissolver (7) through solution flow rate adjusting means (14) and then, poured into the bath (11). Carbon dioxide gas supplied from a carbon dioxide gas cylinder (1) is introduced into the carbon dioxide gas dissolver (7) through gas flow rate adjusting means (5). At this time, the quantity of bubbles existing in artificial carbonated spring in a take-out pipe (15) is measured with a measuring device (13), and the solution flow rate adjusting means (14), gas flow rate adjusting means (5) and the like are controlled by means of a control device (16) using a relational expression between a preliminarily set quantity of bubbles and carbon dioxide concentration to obtain a desired concentration of carbon dioxide gas in carbonated spring. Because the carbon dioxide gas flow control means (5) is provided between the carbon dioxide gas dissolver (7) and a carbon dioxide gas supply source, carbonated spring of a high concentration can be always manufactured even if the pressure of supplied carbon dioxide gas changes or the permeating performance of a membrane changes.