Railway switches and signals – Fluid-motor actuation
Patent
1997-02-07
1998-06-30
Morano, S. Joseph
Railway switches and signals
Fluid-motor actuation
246258, 246393, B61L 504
Patent
active
057721572
ABSTRACT:
The railroad power switch operates from the energy stored in a hydraulic accumulator. A pump charges the accumulator and keeps it charged. A power cylinder acts on the moveable rail of a railroad switch through this hydraulic energy. The energy opens the switch, closes it, and stabilizes it during train trailing through the switch. A spring pack supplements this hydraulic energy in stabilizing the switch.
REFERENCES:
patent: 3015464 (1962-01-01), Bush
patent: 4428552 (1984-01-01), Frank et al.
patent: 5375796 (1994-12-01), Turner et al.
patent: 5417392 (1995-05-01), Wyatt
Bush Joachim G.
Lauck Robert B.
Fluid Energy Controls, Inc.
Gotha Frederick
Morano S. Joseph
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