PRESSURE EXCHANGER FOR MARINE PROPULSION

The main drawback of pressure exchangers is that they are of necessity nonsteady flow machines, highly time-sensitive and not easily controlled. This difficulty is overcome in the bladeless propeller, a pressure exchanger whose flow processes, although nonsteady in the frame of reference in which they are utilized, admit a frame of reference in which they are steady. Means must be found to inhibit the dissipation of the primary jets in the deflection phase, and criteria must be developed for rotor and shroud contouring and for the selection of primary orifice shapes. Special attention should also be given to alternative ways of generating the pseudoblades, to the utilization of two-phase interactions, and to the possibility of compounding cryptosteady pressure exchange with other mechanisms of energy transfer.

• Supplemental Notes:
  • Paper presented at SAE meeting January 12-16, 1970.
• Corporate Authors:

  Society of Automotive Engineers

  485 Lexington Avenue
  New York, NY  United States  10017
• Authors:
  • Foa, J V
• Publication Date: 1970-1-12

Media Info

• Features: References;
• Pagination: p. 7

Subject/Index Terms

• TRT Terms: Propellers; Propulsion; Vehicle power plants; Waterjet propelled craft
• Uncontrolled Terms: Propulsion systems
• Old TRIS Terms: Propeller theory; Waterjet propulsion
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00015216
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE Paper 700095
• Files: TRIS
• Created Date: May 7 1973 12:00AM