Closed loop solar collector system powering a self-starting unif

Power plants – Motive fluid energized by externally applied heat – Power system involving change of state

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Details

417125, 91 4R, 60516, 60671, F01K 2100

Patent

active

046989730

ABSTRACT:
A closed loop solar collector system includes a fluid receiver for collecting solar heat to vaporize a working fluid therein. A uniflow engine connected to the receiver, is powered by the vaporized fluid to power a water wheel. The engine includes a single piston acting directly upon a pair of normally closed intake valves projecting into the engine cylinder. Under low boiler pressure conditions, a spring loaded connecting rod having depending arms each engaging one of the intake valve rods when in a normally raised position coordinates simultaneous opening or closing of the valves with a detent mechanism, enabling the piston to operate in a nonexpanding state. At high boiler pressures, the connecting rod disengages from the intake valve by means of a transmission rod and follower acted upon by outwardly displaced weights provided on a flywheel powdered by the engine drive shaft so that the piston operates in the expanding state. Exhausted vaporized fluid discharged from the engine enters a condensor alternately connected in series with first and second holding tanks so that the receiver fills with water draining from one of the tanks while the other tank refills with water from the condensor. The alternating cycle is controlled by steam actuated valves in response to fluid levels inside the holding tanks. The tanks are mounted to feed water to the receiver under gravity and under pressure of vaporized fluid entering the tanks from the receiver.

REFERENCES:
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patent: 4086765 (1978-05-01), Gillilan
patent: 4213303 (1980-07-01), Lane
patent: 4270350 (1981-06-01), Chevalier
patent: 4408960 (1983-10-01), Allen

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