Performance of a New Lightweight Reciprocating Pump

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A new four-chamber piston pump design has been fabricated and tested. The small-scale propellant pump is intended to be powered by gas at elevated temperatures, e.g. in a gas-generator cycle rocket propulsion system. Two key features are combined for the first time: leak-tight liquid-cooled seals, and a high throughput per unit hardware mass. Measured performance curves quantify flows, pressures, leakage, volumetric efficiency, and tank pressure requirements. A pair of 300-gram pumps operating with significant margin could deliver fuel and oxidizer at 5 MPa to a compact lightweight 1000-N engine, while tank pressure remains at 0.35 MPa. Pump weight is well ... continued below

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PDF-file: 9 pages; size: 0.5 Mbytes

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Whitehead, J C June 9, 2005.

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Description

A new four-chamber piston pump design has been fabricated and tested. The small-scale propellant pump is intended to be powered by gas at elevated temperatures, e.g. in a gas-generator cycle rocket propulsion system. Two key features are combined for the first time: leak-tight liquid-cooled seals, and a high throughput per unit hardware mass. Measured performance curves quantify flows, pressures, leakage, volumetric efficiency, and tank pressure requirements. A pair of 300-gram pumps operating with significant margin could deliver fuel and oxidizer at 5 MPa to a compact lightweight 1000-N engine, while tank pressure remains at 0.35 MPa. Pump weight is well below one percent of thrust, as is typical for launch vehicle engines. Applications include small upper stages, aggressive maneuvers in space, and miniature launch vehicles for Mars ascent.

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PDF-file: 9 pages; size: 0.5 Mbytes

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  • Presented at: 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States, Jul 10 - Jul 13, 2005

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  • Report No.: UCRL-CONF-213316
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 875655
  • Archival Resource Key: ark:/67531/metadc880919

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  • June 9, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 30, 2016, 4:19 p.m.

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Whitehead, J C. Performance of a New Lightweight Reciprocating Pump, article, June 9, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc880919/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.