摘要:
A quick acceleration fluid coupling comprising: a fluid coupling working chamber defined by an impeller attached to a driving shaft, a runner attached to a driven shaft, and an impeller casing attached to the impeller and surrounding the runner; and a passage for supplying hydraulic oil into the fluid coupling working chamber; wherein the passage includes a control valve operable to be fully opened and closed rapidly, and a bypass passage having an oil control orifice, which bypasses the control valve; thereby the rotational speed of the driven shaft can be changed rapidly from the lowest to the highest or vice versa.
摘要:
A fluid coupling transmits power from a drive side to a driven side by utilizing kinetic energy of fluid such as oil. The fluid coupling comprises a pump impeller (4) provided on a drive shaft (1), a turbine impeller (5) provided on a driven shaft (9), a housing (20) fixed to the pump impeller (4) and surrounding the turbine impeller, and a multiple disc clutch provided between a drive shaft side and a driven shaft side. The multiple disc clutch is operated to couple the drive shaft (1) and the driven shaft (9) mechanically so that the drive shaft and the driven shaft are rotated at the same rotational speed. Thus, the fluid coupling can improve a power transmitting efficiency because of no slip between the rotational speed of the drive shaft and the rotational speed of the driven shaft.
摘要:
The present invention relates to a power transmission apparatus for transmitting power by utilizing kinetic energy of a fluid, such as a torque converter, a fluid coupling, or the like. In a power transmission apparatus for taking out kinetic energy given to a fluid for power transmission by a prime mover as rotational power, water is supplied as a working fluid to a coupling section comprising an impeller (10) and a runner (11), water is supplied as a lubricating fluid to lubricate bearings (8, 9) for supporting an input shaft (7) and an output shaft (16) which are connected respectively to the impeller (10) and the runner (11), and water is supplied as a working fluid in a hydraulic servo mechanism for controlling a scoop tube (14) for adjusting the amount of water in the coupling section.
摘要:
A fluid coupling includes an input shaft having a speed-increasing gear train, an impeller operatively connected to the input shaft, an impeller casing fixed to the impeller, and an output shaft having a runner operatively combined with the impeller. The impeller, the runner and the impeller casing jointly define a working fluid chamber. The impeller casing and the impeller are made of a material having a small specific gravity and a high allowable stress range for reducing centrifugal stresses developed therein when the impeller casing rotates at high speeds. The material may be a titanium alloy or an aluminum alloy.
摘要:
In a power transmitting apparatus for transmitting power from the driving side to the driven side using a fluid joint means, a rolling bearing clutch including an inner ring, an outer ring and a plurality of rollers interposed between track surfaces of the outer periphery of the inner ring and the inner periphery of the outer ring is disposed between the driving side and the driven side for performing ON/OFF operations by allowing the track surfaces of the inner ring and the outer ring to move near to each other or away from each other, and the driving side and the driven side are mechanically connected to each other without any fluid joint means interposed therebetween by shifting the bearing clutch to the ON position whereby a power transmitting efficiency can be improved without any slip loss by mechanically connecting the driving side to the driven side with a clutch mechanism.
摘要:
A compound of the present invention, or a pharmaceutically acceptable salt thereof is indicated by formula (1) below: wherein, R1, R2, R3, R4, R5, R6, Q, R8, and R9 have the same meanings as R1, R2, R3, R4, R5, R6, Q, R8, and R9 in the specification.
摘要:
Compounds of the formula (I) ##STR1## wherein R.sup.1 is each independently hydrogen or a group easily hydrolyzable under physiological conditions;R.sup.2 is --(CH.sub.2).sub.n -cycloalkyl wherein cycloalkyl contains 3 to 5 carbon atoms and n is an integer from 0 to 4, heteroaryl-(lower-alkyl), (lower-alkoxy)-(lower-alkyl), aryloxy-(lower-alkyl), aralkyloxy-(lower-alkyl), (lower-alkylthio)-(lower-alkyl), arylthio-(lower-alkyl), aralkylthio-(lower-alkyl), oxo-(lower-alkyl), acylamino-(lower-alkyl), cyclic amino-(lower-alkyl), (2-oxocyclic amino)-(lower-alkyl) wherein the alkylene chain is unsubstituted or substituted with one or two lower-alkyl group(s); andR.sup.3 is iodo, or a vinyl or ethynyl group which group is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, C.sub.1-4 alkyl, cycloalkyl, aralkyl, carbocyclic aromatic ring and heteorcyclic aromatic ring.The compounds of formula I are useful in the treatment of malignant diseases and can also be administered together with 5-fluorouracil or derivatives thereof to enhance the antitumour activity of the latter.