Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1974-05-13
1976-08-24
Schwadron, Martin P.
Fluid handling
Systems
Flow path with serial valves and/or closures
137599, 244135A, 141346, F16L 2900
Patent
active
039761002
ABSTRACT:
Disclosed is sectional aerial refueling apparatus including a high capacity nozzle unit and a high capacity receptacle unit into which the nozzle is insertable. The probe-like forward end of the nozzle also is insertable into a prior art-type, low capacity receptacle. The nozzle has an inner fuel passage terminating at a port in its front end and an outer fuel passage extending through the side of the nozzle and terminating there in an outer port. The inner and outer fuel passages are normally closed by independently operable poppet valves which remain closed until the nozzle is inserted into a receptacle. The high capacity receptacle includes inner and outer fuel passages which in turn respectively terminate in inner and outer ports. The latter fuel passages are normally closed by independently operable poppet valves which remain closed until the nozzle and the receptacle are engaged. The nozzle and high capacity receptacle each include valve actuators which, during engagement of the nozzle and receptacle, engage and force open the poppet valves of the other so as to bring the fuel passages in the nozzle into communication with those in the receptacle thereby to form a composite inner fuel passage and a composite outer fuel passage. Only the forward portion of the front nozzle housing can be inserted into the prior art type of low capacity receptacle, leaving the rear nozzle poppet valve closed and outside the receptacle.
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Schwadron Martin P.
Spiegel H. Jay
The Boeing Company
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