The pistonless pump system is basically a pressure fed pump chamber that is. A piston less pump is a type of pump designed to move fluids without any moving parts other than three chamber valves. Ultrahighpressure operation of the pumps and combustion chamber allowed expansion of hot gases through the exhaust nozzle to achieve efficiencies never previously attained in a rocket. Chamber pressure washington state university hybrid rocket team 5 extremely important chamber pressure analysis is complex hard start danger higher chamber pressure more thrust generally nitrous oxide self pressurizes around 730 psi chamber pressure must be dual chamber pump of claim 3, wherein the primary chamber volume capacity is at least 25% larger than the auxiliary chamber volume capacity. Pistonless dual chamber rocket fuel pump steve harrington, ph. It has very much less rotating parts than that of piston pumps or turbo pumps. Nasa have developed a low cost rocket fuel pump which has comparable performance to. Pressurize the pump chamber and feed to the engine. Assessment of using electric pumps on hybrid rockets. This will require high pressure plumbing to the engine, but this problem has been solved for various pressure fed systems.
A dual chamber pistonless pump was designed and tested for nasa to validate pistonless pumps for inspace propulsion, exploration and nanosat launch vehicles. The expander cycle is a power cycle of a bipropellant rocket engine. The importance of a highpressure propellant can explained using the rocket. Dual pistonless pump nasa has designed, built and tested a simple, light weight pump dual piston less pump for use in liquid propelled rocket where a reliable pump with minimal moving parts is needed. Nasa have developed a low cost rocket fuel pump which has comparable. Saturated fluid pistonless pump technology demonstrator. The heated, now gaseous, fuel then powers the turbine that drives the engines fuel and oxidizer pumps before being injected into the combustion chamber and burned.
Flometrics liquid nitrogen test with a flow rate of 2. A pistonless pump is a type of pump designed to move fluids without any moving parts other than three chamber valves the pump contains a chamber which has a valved inlet from the fluid to be pumped, a valved outlet both of these at the bottom of the pump, and a pressurant inlet at the top of the pump. Run two in parallel, venting and filling one faster than the other is emptied. Rocket engines requires a tremendous amount of fuel high at high. Turbopumps are expensive and require a massive engineering effort. Flometrics rocket fuel pump liquid nitrogen testing 04. To test the concept and to evaluate the manufacturing techniques, two. This reaction mass is ejected at the highest achievable velocity from a rocket engine to produce thrust. Ppt pistonless dual chamber rocket fuel pump powerpoint. April 2005 update for rocket fuel pump and sdsu student rocket project. Harrington rocket fuel pump space 2004 authorstream. This is achieved through the use of two pressurized pump chambers that alternate pressurizing and draining of the.
Pistonless pumps are 8090% economical than that of piston pump or turbo pumps. The video was taken aboard a nasa zero gravity plane. One way to supply fuel is to use the expensive turbopump mentioned above,another way is to pressurize fuel tank. Solana beach, ca 92075 abstract a positive displacement pistonless rocket fuel pump uses two pumping chambers alternately filled and pressurized in sequence to maintain a steady flow of pressurized propellant to a rocket engine.
Nasa has manufactured such kind of pump and tested it actually,and they found it works conveneiently. Pistonless pump seminar report, ppt, pdf for mechanical. This pump saves up to 90% of the mass of the tanks as compa. Presently, a fiber optic coupled miniaturized laser ignition prototype is being implemented at the rocket chamber test rig for future testing. Rocket engines requires a tremendous amount of fuel high at high pressure. The engine was an integral design with all components of the drive, with the exception of fuel tanks, locked in a cubical frame this frame was discarded for the 109509c dual chamber design. Rocket engine what is it for performance, a rocket must have large, lightweight propellant tanks pressure fed tanks are heavy andor expensive and safety margins cost too much in terms of performance. Pistonless pump thrust to weight ratio calculation pistonless pump thrust to weight ratio calculation.
Harrington rocket fuel pump space 2004 authorstream presentation. The pump controls are set up so that when the level in one side gets low, the other side is pressurized. Hybrid propellant motor design amazon web services. In a typical rocket engine, complex turbo pumps must push fuel and oxidizer into the engine chamber at an extremely high pressure of about 2,000 pounds per square inch or the fuel is blown back out.
In liquid bipropellant rockets, a pump leak or tank rupture that brings these chemicals together in an uncontrolled way can result in a large explosion. Lace engines employ the cooling capacity of the cryogenic liquid hydrogen fuel to liquefy incoming air prior to pumping. The dual chamber pump provides continuous, uninterrupted flow and was designed to show how two pumps chambers could be. Rocket propellant is the reaction mass of a rocket. A turbopump is a propellant pump with two main components. Placing the pump chamber inside the tank can solve the issue of water hammer, fill duct sizing and thermal conditioning. Pistonless pump for rockets rocket pump free 30day. Request pdf on jul 20, 2003, steve harrington and others published pistonless dual chamber rocket fuel pump. The purpose of a turbopump is to produce a highpressure fluid for feeding a combustion chamber or other use there are two types of turbopumps. Ppt pistonless dual chamber rocket fuel pump powerpoint presentation free to view id. Research and development flomterics rocket fuel pump. The dual chamber pump of claim 5, further comprising pressure control means to prevent the pressure in the dual chamber pump from falling below the vapor pressure of the fluid.
Rocket fuel pump designed to cost effectively eliminate. Piston less pump for rocket free download as word doc. The pump contains a chamber which has a valved inlet from the fluid to be pumped, a valved outlet both of these at the bottom of the pump, and a pressurant inlet at the top of the pump. Finally, the required pump outlet pressures are assumed to be 115% for the lox pump and 155% for the fuel pump with respect to combustion chamber pressure. This pump is designed to work with liquid oxygen, liquid methane, or any other common rocket fuel. Explore pistonless pump with free download of seminar report and ppt in.
Piston less pump for rocket rocket rocket propellant scribd. Pistonless dual chamber rocket fuel pump pistonless dual chamber rocket fuel pump steve harrington, ph. This video features a test of the dual chamber pistonless pump at 70 gpm and 50 psi. Nasa have developed a low cost rocket fuel pump which has comparable performance to turbopump at 8090% lower cost. This pump has the potential to reduce the cost and increase the reliability of rocket fuel pumps by a factor of 20 to 100. Flometrics 70 gpm dual chamber pistonless pump youtube. The pump is designed so that the time required to vent, refill and pressurize one pumping chamber is less than the time to dispense a given quantity of fuel from the other. In solid propellant rockets, the fuel and oxidizer are already mixed and held together. Pistonless pump technology developed by flometrics, inc. The solution is the the dual pistonless pump simple to design and manufacture and with performance comparable. The design of sabre evolved from liquidair cycle engines lace which have a single rocket combustion chamber with associated pumps, preburner and nozzle which are utilised in both modes. Flometrics zero gravity flight test of our rocket fuel. The adobe flash plugin is needed to view this content. High performance lox hydrogen upper stage with pistonless pump.
Auxiliary pump chamber is 14 the size of main pump chamber valves and ullage add 25% to mass total pump mass is 1. The thrust of this engine was regulated between 300 kp 2. Drain the main tank at low pressure into a small pump chamber. A pressurant is used, such as steam or pressurized. Ppt sucker rod pump basics powerpoint presentation. Pistonless pump for rocket has been proved to be the most economical than piston pump or turbopump. A pistonless pump is a type of pump designed to move fluids without any moving parts other than three chamber valves. The dual chamber pump provides continuous, uninterrupted flow and was designed to show how two pumps chambers could be installed within the propellant tank. American institute of aeronautics and astronautics 12700 sunrise valley drive, suite 200 reston, va 201915807 703. Launch vehicle and spacecraft system design using the. The flometrics pistonless rocket fuel pump is a highly reliable pump that uses two pumping chambers alternatively filled with fluid and pressurized in sequence to maintain a steady flow of pressurized propellant to a rocket engine. So, it has less friction losses and there by it helps to improve the efficiency of the. A positive displacement pistonless rocket fuel pump uses two pumping chambers alternately filled and pressurized in sequence to maintain a steady flow of. Influence of fuel pump failure on the fuel feeding.
Performance assessment of electrically driven pumpfed lox. Technology development of fiber opticcoupled laser. Rockauto ships auto parts and body parts from over 300 manufacturers to customers doors worldwide, all at warehouse prices. A scalable pistonless pumped upper stage is proposed.
Valves and regulators the pistonless pump valve design or selection process is as follows. Development of lowcost pressurisation system for rocket engines. Download as doc, pdf, txt or read online from scribd. This stage uses an expansion cycle powered set of pistonless pumps to power a regeneratively cooled, moderate pressure thrust chamber. Because of its reliable and innovative technology, it is both cost effective and more feasible when compared to. The pulse mode of pulse detonation rocket engines allows the fuel to be injected at a low pressure of about 200 pounds per square inch.
Pulse detonation engine seminar report, ppt, pdf for. Remove this presentation flag as inappropriate i dont like this i. The energy required can either come from the propellants themselves, as with a chemical rocket, or from an external source, as with ion engines. Pistonless pump free download as powerpoint presentation. In this cycle, the fuel is used to cool the engines combustion chamber, picking up heat and changing phase. Influence of fuel pump failure on the fuel feeding stability of an aircraft fuel system. Future work is guided by a technology road map that outlines. Nasa has designed,built and tested a simple, light weight pump dual pistomless pump for use in liquid propelled rocket where a reliable pump with minimal moving parts is needed. We had originally planned to build a rocket around the pump, but the student rocket. Pistonless pump for rockets full report and ppt,ask latest information,abstract,report,presentation pdf,doc,ppt, pistonless pump for rockets full report and ppt technology discussion, pistonless pump for rockets full report and ppt paper presentation details. Suborbital flight preparation of the pistonless pump.
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