F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/93
F15B 13/02 (2006.01) F15B 11/024 (2006.01)
Patent
CA 1181657
ABSTRACT OF THE INVENTION A regenerative valve which includes a valve body having a bore therein intersected by first and second control passages connected respectively to a four-way directional control valve; the bore is also intersected by first and second cylinder control cavities connecting with the head end and rod end respectively of a double-acting cylinder; a check valve poppet is seated in said bore blocking flow to the head chamber of the cylinder. A shuttle spool is also positioned in said bore and is movable between a first working position allowing the cylinder to retract its piston and a regeneration position opening flow across the first and second cylinder control cavities while blocking flow to the second control passage. The shuttle spool engages the poppet member in its regen- eration position causing the poppet to open a flow path from the first control passage to the first cylinder control cavity and thereby allow regeneration flow.
418288
Cessna Aircraft Company (the)
Osler Hoskin & Harcourt Llp
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