Abstract: The present invention relates to a carburetion device for automobile engines, which comprises a magnetite-containing carburetor 1. One side of the magnetite-containing carburetor 1 is connected to an engine and the other side is connected to a fuel hose 2, and a layer of magnetite is coated on the fuel hose 2 near the magnetite-containing carburetor 1. With this novel practical design, the fuel is magnetized, thereby allowing the fuel to be combusted at an efficiency of at least 98%, thus improving the air quality, prolonging the working life of automobile engines, and lowering the failure frequency of automobile parts.

Abstract: This invention relates to a front wheel resilient suspension system for a chainless bicycle where a horizontal bar member extends between a main bar member located under the bicycle seat to a horizontal bar connector mechanism which is resiliently mounted to both the horizontal bar member and the handlebar of the chainless bicycle. A buckle mechanism located on the horizontal bar member allows for pivotal displacement of the handlebar with respect to the bicycle seat and provides for a responsive displacement of the center of gravity of a bicycle rider on rough terrain which adds to the cushioning effect and the comfort of the bicycle rider.

Abstract: A gear transmission mechanism for driving a bicycle to run, comprising a base supporting frame attached to the down tube, the seat tube and the seat stay; a first axle inserted through the rear wheel hub of a bicycle into one hole on said base supporting frame with the two opposite ends thereof respectively coupled with two cranks; a first gear mounted on said first axle and carried by it to rotate; a second axle fastened in another hole on said base supporting frame to carry a second gear, which is engaged with said first gear, and a third gear, which is engaged with a one-way gear on said rear wheel hub, to rotate. Rotating the cranks causes the wheel hub to carry the bicycle wheels to rotate.