96results about How to "Reduce transfer efficiency" patented technology

A power transmission device includes first and second rings arranged opposite each other, having a common rotation center axis, and rotatable relative to each other; a plurality of planetary balls having rotation center axes parallel to the rotation center axis, and radially arranged between the first and second rings and around the rotation center axis; a transmission control unit configured to change a rotation ratio between the first and second rings by changing the respective contact points of the first and second rings and each of the planetary balls through tilting motion of each of the planetary balls; and a rotation restricting unit disposed between the planetary balls adjacent to each other.

The invention relates to a harmonic speed reducer. The harmonic speed reducer comprises a rigid gear, a flexible gear, a shaft assembly, a wave generator assembly and a casing, wherein the inner wall of the rigid gear is provided with teeth; the flexible gear is arranged in the rigid gear and is engaged with the rigid gear through the teeth; the wave generator assembly is arranged in the flexible gear; the casing is arranged on the exterior; the rigid gear is fixedly arranged in the casing; the number of teeth of the rigid gear is greater than the number of teeth of the flexible gear; the shaft assembly consists of an input shaft and an output shaft; the wave generator assembly is arranged on the input shaft of the shaft assembly through a shaft penetrating hole in the center; the wave generator assembly comprises a double-semicircular wave generator and a flexible bearing, and the flexible bearing is sheathed on the outer surface of the double-semicircular wave generator; the double-semicircular wave generator consists of a column body and two semicircular column bodies, a shaft penetrating hole is formed in the center of the column body, and the two semicircular column bodies are symmetrically arranged at both sides of the column body. The harmonic speed reducer has the beneficial effects that the structure is simple, and the difficulty in manufacturing is effectively reduced; the counterforce of the rigid gear onto the teeth of the flexible gear is uniform, the working property of the speed reducer is effectively improved, and the production cost is reduced.

A pre-vaporization formulation for an e-vaping device includes a vapor former, optionally water, nicotine, nicotine bitartrate and an acid. The pH of the pre-vaporization formulation is between about 4 and about 6. The acid can include one or more of pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid, lactic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-diemthyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid, 3-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid and sulfuric acid.