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2. Advanced Cryogenic Evolved Stage - Wikipedia

   en.wikipedia.org/wiki/Advanced_Cryogenic_Evolved...

   Two Advanced Cryogenic Evolved Stage (ACES) concepts were originally developed in 2005 by both Boeing and Lockheed Martin. [4] [5] [clarification needed]By 2010, ULA had inherited the intellectual property of both proposals, and the ACES concept had evolved into a new high-performance upper stage to be used on both Atlas V and Delta IV/Delta IV Heavy launch vehicles.

3. Rochester Ramjet - Wikipedia

   en.wikipedia.org/wiki/Rochester_Ramjet

   The Ramjet is a continuous-flow port-injection system. Unlike later fuel injection systems that used electronics, this one is based on purely mechanical principles. The two main sub-assemblies of the system are the air meter and the fuel meter. The air meter measures airflow into the engine and manages thermostatic warmup enrichment, fuel ...

4. Orbital propellant depot - Wikipedia

   en.wikipedia.org/wiki/Orbital_propellant_depot

   For rockets and space vehicles, propellants usually take up 2/3 or more of their total mass. Large upper-stage rocket engines generally use a cryogenic fuel like liquid hydrogen and liquid oxygen (LOX) as an oxidizer because of the large specific impulse possible, but must carefully consider a problem called "boil off," or the evaporation of the cryogenic propellant.

5. MegaSquirt - Wikipedia

   en.wikipedia.org/wiki/MegaSquirt

   This is the default pre-loaded code from Bowling and Grippo. It is a simple and effective fuel injection controller with an 8x8 fuel table for speed density or alpha-n. Narrow band or wide band oxygen sensors can be used for closed loop control, and an on/off idle valve may be used. MS1/Extra (MegaSquirt 'n Spark-Extra) [7]

6. Jetronic - Wikipedia

   en.wikipedia.org/wiki/Jetronic

   Mechanical fuel injection, 'K' stands for German: "Kontinuierlich", meaning continuous.Commonly called 'Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi).

7. Bendix Electrojector - Wikipedia

   en.wikipedia.org/wiki/Bendix_Electrojector

   The Electrojector is an electronically controlled multi-point injection system that has an analogue engine control unit, the so-called "modulator" that uses the intake manifold vacuum and the engine speed for metering the right amount of fuel. The fuel is injected intermittently, and with a constant pressure of 1.4 kp/cm 2 (20 psi; 137 kPa ...