GB359100A - Improvements in or relating to valve control means - Google Patents

Abstract

359,100. Water gas generation. PINTSCH, AKT.-GES., J., 71, Andreasstrasse, Berlin. Aug. 12, 1930, No. 24170. Convention date, Aug. 22, 1929. [Class 55 (i).] An automatic valve control for use in connection with water gas generation is arranged so that the relative order of opening and closing of the main valves is determined by the arrangement of the ports in a control valve seat, and the disposition of annular passages in the control valve member and the time during which each main valve is open or closed is controlled automatically by means including inter alia a time-controlled tappet-wheel. In the form shown in the Figures the control valve 7 is in the form of a rotary disc valve having a series of segmental annular recesses 9 communicating with one another through holes 11 and with a circular recess 10 in communication with a corresponding recess in the valve seat 8 connected to the exhaust pipe 10<1>. Oil under pressure is fed into the chamber 12 and passes thence through any of the ports in the seat outside the valve member to close the main valves connected to the respective ports. The ports within the valve member being connected to exhaust permit the connected main valves to open. The series of recesses may be replaced by a single recess shaped to the envelope of the series. The control valve is periodically moved by an electric motor acting through a reciprocating rod 15 and a triangular pawl engaging a ratchet wheel 29 having both internal and external teeth. The position of the pawl, which may be moved by hand, is normally determined by adjustable tappets 27 on a disc 26 engaging one or other of the projections 22, 23 on a rocking lever 20 secured to the pawl. The wheel 26 is slowly rotated by a ratchet gear operated by the rod 15 or may be rotated through gearing driven by the motor.