Solar tracking system

Details Solar tracking system Solar tracking system

1987-01-13

1989-04-18

Jones, Larry

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126432, F21J 302

Patent

active

048217050

ABSTRACT:
A solar energy conversion apparatus which includes a reflective parabolic trough which tracks the sun the control means therefor being such that the trough rotates about a north-south axis alternately to east and west extreme positions until the driving motor is disabled by equal irradiation of a pair of phototransistors. The phototransistors are aligned relative to the axis of the trough such that they are equally irradiated when the sun's rays are concentrated on a heat transfer tube extending along the axis of the trough. The apparatus has a flexible disc drive member to mechanically couple the trough to the drive motor. The heat transfer conduit is of relatively small capacity and a two-phase flow therein is utilized so as to conserve energy.

REFERENCES:
patent: 4253491 (1981-03-01), Worthen et al.
patent: 4290417 (1981-09-01), Peters et al.
patent: 4341202 (1982-07-01), French
patent: 4366807 (1983-01-01), Barber, Jr.
patent: 4366853 (1983-11-01), Bernier
patent: 4385625 (1983-05-01), Lee
patent: 4483320 (1984-11-01), Wetzel, Jr. et al.
patent: 4566430 (1986-01-01), Vandeplas et al.
patent: 4599994 (1986-07-01), Cole

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