摘要:
A variable speed drive comprising two drives A and B, an output drive wheel (62) and an endless, extendible member (66) that is driven by the drive A and B and extends round and rotates the output drive wheel (62). The drives A and B are operable to move the endless member (66) around an endless path at a first speed at a first driving position and at a second speed at a second position. This causes local expansion or contraction of the endless member (66) round the output drive wheel (62) and so varies its speed.
摘要:
The invention relates to a device for transferring heat and a method of controlling such a device, the device comprising a stator chamber containing: a liquid; an input heat exchange surface; an output heat exchanger; and a rotor arranged to be rotated by vapour bubbles.
摘要:
The invention is a compression method having characteristics of smooth compression and internal cooling of the gas. Embodiments of the invention employ a cylindrical chamber and an orbiting rotor to create a moving duct or chamber whose walls converge, relative to a static gas packet drawn into the moving duct, at a 'pinch point'. Preferably the closing speed of the walls is subsonic and the speed of the pinch point is supersonic. This enables high pressure to co-exist, at the narrowing end of the duct, with low pressure elsewhere in the duct, because of the pressure information barrier produced by the supersonic advance of the pinch point. The invention also discloses means for adjusting the running clearance between the cylinder and the rotor, and means for counterbalancing the rotor.
摘要:
A ratio changing method and apparatus includes, in a hypocycle arrangement, an input drive wheel (2), an output drive wheel (3) and a transfer ring (1). The input drive wheel (2) drives around the exterior of the transfer ring (1). The transfer ring (1) is constrained against rotation about its own axis but oscillates about the outward drive wheel (3), in parting rotation to the output drive wheel (3) as a result a simple and effective ratio changing apparatus is provided.