The continental fuel injection system injects fuel into the intake valve port in each cylinder head. Aircraft reciprocating engine fuel injection systems. Refer to the aircraft maintenance manual for idle speed and mixture setting. Fuel injection system overhaul and testing services available at victor aviation include fuel injection servos, fuel pumps, fuel flow dividers, fuel metering units, fuel lines and fuel nozzles. Usually offroad fuel injection systems will not use an oxygen sensor.
The system is based on the principle of measuring air flow and using the air flow. All of our units meet the latest engine manufacturers specifications for peak performance and are dynamically tested to verify fuel. In addition to 15 years of reliable and predictable service as an faa and easa approved repair station, quality aircraft accessories also carries a large selection of precision airmotive products in new and overhauled condition. Precision airmotive llc aviation requires precision. The silver hawk ex, noncertified fuel injection system is proven technology drawn from decades of fuel metering engineering by precision airmotive. The main difference between carburetor and fuel injection system carburetorzfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection systemzthe fuel speed at the point of delivery is greater than the air speed to atomize the fuel. Chapter seven fuel injection the electronic fuel injection system was designed and built by bosch and has been used successfully on several vw models and other cars. Manufactured as experimental, the silver hawk kit provides experimental pilots with precise, dependable, and reliable fuel metering. For a more comprehensive overview of this feature, see the injector. Ramjet 350 electronic fuel injection efi mefi 3 to mefi. Fit the fuel injection hose supplied to the outlet fitting of the ryco unit and the other end to the inlet side of the factory filter housing. Injector coefficient file barnacle bills marine supply.
Turn and bank holdings of north carolina has acquired the assets of precision airmotive. Sequential fuel injection with dis and idle air control buick v6 30212300 30222300 sequential fuel injection with dis and idle air control individual cylinder fuel spark control options included 30212301 30222301 sequential fuel injection with dis and idle air control wide band oxygen sensing option included 30212310 30222310. Browse our selection of precision airmotive rsa 5ad1 aircraft fuel servos below. I have a similar setup to yours, but with a superior xp360 and pa silverhawk ex fuel injection. To provide correction of idle lever stem marking b. Like all diesel engines, the purpose of the injection pump is to deliver a preciselymetered charge of diesel fuel to each cylinder injector, in the firing order of the engine. Fuel injection systems are also able to operate normally regardless of orientation, whereas carburetors with floats are not able to operate upside down or in microgravity, such as that encountered on airplanes. Precision airmotive, recently acquired by turn and bank holdings, is the original equipment manager oem of rsa fuel injection systems, providing the aviation community with factory new and rebuilt rsa fuel injection servos. The major advantage of the rsa fuel injection system is operation without a vent flow fuel return line to the fuel tank, thereby eliminating the return line piping required with other systems. The fuel injection system reduces the possibility of induction system ice and provides better fuel distribution than does a carburetor system. A fuel pressure gauge, calibrated in pounds per hour fuel flow, can be used as a fuel flow meter with the bendix rsa injection system. The fuel injection event is measured with injector response time irt, and pulse width pw. One side of the chip is exposed to the intake manifold pressure and the other side to the internal perfect vacuum in the chamber.
Sequential fuel injection with inductive pickup and twostage nitrous system capability wide band oxygen sensing and individual cylinder fuel and spark control options included 302211 30223211 sequential fuel injection with inductive pickup and idle air control 302300 30223300. Fuel injection tm instruction manual for the following go efi systems 30003 go street efi system this quick start manual is designed to get you up and running with the go street kit and either the 40003 fuel command center or the 40005 inline fuel delivery kit. When the f uel oil enters the cylinder, it will ignite because of the high temperatures. Quality aircraft accessories stocks a wide variety of precision airmotive rsa 5ad1 aircraft fuel servos. Sequential fuel injection with hei and idle air control wide band oxygen sensing individual cylinder fuel and spark control options included 302111 302211 sequential fuel injection with dis and idle air control buick v6 30212300 30222300 sequential fuel injection with dis and idle air control individual cylinder fuel. The excess fuel is bypassed to the intake side of the fuel transfer pump through a relief valve.
Bendix fuel servo engine aircraft fuel servo servo model application parts list model aeio320e1b bellanca aircraft champion 252430710 rsa 5ad1 aeio320e2b bellanca decathlon 8kcab 25247238 rsa 5ad1 aeio360a1a aerotek, pitts special s2a 252434110 rsa 5ad1 aeio360a1a pitts special s2a 252405411 rsa 5ad1 aeio360a1e pitts s2 2524575. Prime the fuel system by pumping the primer on top of the factory filter housing until it becomes firm. All rsa type fuel injection systems are based on the principle of measuring engine air consumption by use of a venturi and the resulting airflow forces to control fuel flow to the engine. Conventionally, the injection system of a diesel engine comprises a pump, a highpressure pipe, and an injection valve. The injection rate was measured with diesel fuel in a hfocapable injection rate indicator. Cut the hose the required length and secure both ends with clamps supplied.
Precision airmotive rsa 10ad1 2576566 fuel injection servo precision airmotive rsa 10ad1 2576630 fuel injection servo precision airmotive rsa 10ed1 2524273 servo fuel injector precision airmotive rsa 10ed1 2524298 servo fuel injector. Title ramjet 350 electronic fuel injection efi mefi 3 to mefi 4 conversion kit ir 21ap17 part no. The signal it sends to the ecu determines the basic fuel injection duration and ignition advance angle. Rsa fuel injection system training manual precision airmotive. The rsa fuel injection system uses pressure from the for priming airframe aux. This increased servo valve opening causes a decrease in pressure in the metered fuel. Check by disconnecting induction to adjust injector at idle or will not system at injector inlet to observe hold adjustment. Figure 239 the system consists of a fuel injector pump, a control unit, a fuel manifold, and a fuel discharge nozzle. Fuel injected quantity iq fuel injection timing soi fuel injection duration in order to control fuel injection you must know how much air is flowing into the engine and you must know the engine speed. Induction system lycoming lio360m1a engines are equipped with a precision airmotive rsa type fuel injection system. Rsa fuel injection system mcgrawhill education access. This service information letter is applicable to all rsa ioedi fuel injection servos, parts list 25245009. Introduction to fuel injection common service manual.
This ad is not applicable if the letter g is stamped or scribed on the face of the. If you cant find the precision airmotive rsa 5ad1 aircraft fuel servo you need, contact us with your precision airmotive rsa 5ad1 aircraft fuel servo request. The answer came from a man who had learned about diesel engines the hard way by installing and rotary distribution principle maintaining. Precision airmotive rsa 5 and rsa 10 series fuel injection servos and bendix rsa 5 and rsa 10 series fuel injection servos fitted with a servo plug gasket pn 365533 under the fuel injection servo plug pn 383493. Irt is the length of time in milliseconds ms from when the stator valve opens to the time the poppet control valve closes. The fuel injection system of aircraft reciprocating engine has many advantages. Rsa servos at precision airmotive, our rsa fuel injection servos are manufactured, rebuilt and overhauled by expert assembly technicians. To check, select info from the adv options section in. The rsa fuel injection system is a continuousflow system and is based on the. Fuelinjection systems vary in their details of construction.
Rsa servo applications this chart is for reference only. German direct injection petrol engines used injection systems developed by bosch from their diesel injection systems. This gauge is connected to the flow divider and senses the pressure being applied to the discharge nozzle. The major advantage of the rsa fuel injection system is.
Each engine is equipped with a bendix rsa 5 fuel injection system, which operates on the principle of measuring engine air consumption and using the air flow to control fuel flow to the engine. The ecm controls when and how long the fuel injector opens, when the ignition coil fires, and when the fuel pump operates via the fuel pump relay. Manufacturing and customer support operations will be conducted under the newly reorganized precision airmotive. All aircraft and engines with rsa 5 or rsa 10 series fuel injection servos which have had a new, rebuilt, overhauled, or repaired servo installed since august 22, 2006. Added information is the result of much appreciated. Precision airmotive rsa fuel injection system continuous flow system air flow volume determines amount of fuel to mix system consists of 4 sub systems servo regulators fuel control flow diverter nozzles crane, d. Precision airmotive stands proudly as a world leader in the manufacturing of fuel controls for general aviation. The bosch ve injection pump uses a single pump plunger to produce these highpressure fuel charges.
Fuel distribution to the individual cylinders is accomplished by use of a flow divider i. B if there is control signal, but the fuel injector doesnt inject fuel, maybe the fuel injector is jammed. The ow at a given point of the injection system changes as a function of time. Gasoline direct injection teaching gdi to your students 4210 rue jeanmarchand, quebec, qc g2c 1y6, canada phone. Original this service bulletin applies to avstar manufactured rsa 5ad1 and rsa 10ad1 servos mounted in an updraft configuration.
The rsa fuel injection system uses pressure from the for priming. If you fly behind an io550, 520, or other fuel injected continental engine, you should have a printed copy of this. This manual has been prepared and distributed by airflow. The bible of fuel injection system maintenance for continental engines is sid 973f, which covers all aspects of proper inspection and adjustment of these systems. This autopopulation will center the fuel injection event around the camshaft intake lobe centerline. A simpler, less expensive form of fuel injection was needed before diesels could compete effectively in the small or mediumsize highspeed engine field. Silverhawk ex fuel injection systems aircraft spruce. If you have an ezefi system that was purchased in 2010 or earlier, you may not have the most current base tune. We etec owners are actually blessed by low priced fuel injectors compared to much of the rest of the direct injection engine industry. Fuel tank the fuel tank contains a fuel gauge sending unit, a filler tube and a fuel pump. The american society of mechanical engineers rotary. Precision airmotive rsa fuel injection systems are also available outright or on an exchange basis. Troubleshooting techniques for the precision airmotive rsa. Aircraft reciprocating engine fuel injection systems aircraft systems.
Quality aircraft accessories is an authorized distributor for all rsa fuel injection servos, flow dividers and nozzles. The bendix inline stemtype regulator injection system rsa series consists of an injector, flow divider, and fuel discharge nozzle. It is a continuousflow type, which controls fuel flow to match engine airflow. Within the sensor is a silicon chip combined with a vacuum chamber. Precision identified its fuel injection servos by an alphanumeric designation, each prefaced by the abbreviation rsa. The diesel engine is known as a compressionignition engine, while the gasoline engine is a sparkignition engine. Precision airmotive is an original equipment manufacturer oem of rsa fuel injection systems. All fuel lines from tank to pump must be 38 inch minimum. Precision airmotive servo rsa5ad1 25765362 aircraft spruce.
Pw is the duration of time the injectors are fueling the engine, measured in. Complete service information for the fuel injected engine is beyond the scope of this manual. A pre always mount the fuel pump away from heat sources andor be heat shielded to prevent damage. This pressure is in direct proportion to the fuel flow and indicates the engine power output and fuel. Im noticing the fluctuating fuel pressures as well 2328psi. Direct fuel injection was used in notable world war ii airplane engines such as the junkers jumo 210, the daimlerbenz db 601, the bmw 801, the shvetsov ash82fn m82fn.
Arduino software for the fuel injection controller. Bendix rsa fuel injection system throttle carburetor scribd. The fuel distribution system to the individual cylinders is obtained by the use of. Model rsa5ad1 precision airmotive aircraft fuel servos. Precision airmotive also manufactures new and rebuilt flow dividers and nozzles. This service bulletin applies to all avstar manufactured servos rsa 5ad1, rsa 10ad1, or rsa 10ed1 plus any servo fitted with fuel diaphragms manufactured by avstar. Fuel injection generally increases engine fuel efficiency. A tutorial for rsa fuel injectors by precision airmotive. Understanding and tuning the injection pump of land rover.
Teledyne continuous flow fuel injection aviation pros. All of our units meet the latest engine manufacturers specifications for peak performance and are dynamically tested to verify fuel flow from idle to full throttle. Bosch is the largest supplier of fuelinjection systems in the world. Precision airmotive parts are available in new, rebuilt, and overhauled versions, which means aircraft owners have many choices when buying a precision airmotive rsa fuel injection system. It is intended to be used by personnel responsible for the installation, adjustment, and maintenance of fuel injection. Automotive fuel injection systems especially the cheaper ones employed by us manufacturers through the mid1980s were like this. The manual mixture control on the rsrsa fuel injectors, in the idle cutoff. This is a very wellwritten manual, but exceptionally underused. The fuel injection pump is fed with fuel in abundance. Press question mark to learn the rest of the keyboard shortcuts. Bendix rsrsa injection systems technical manual volume ii. Precision airmotive rsa and the teledyne continental fuel injection system by. Precision airmotive rs and rsa fuel injectors installed on lycoming aircraft engines.
The resulting fuel air mixture is pulled into the cylinder when the intake valve opens. Service bulletins, letters and instructions are available to all from authorized textron lycoming distributors, or from. The rsa system sprays fuel onto the back of the intake valve at all times. Bendix inline stem type regulator injection system rsa series consists of. Immediate result is a movement of the regulator servo valve to the right. The main components of the fuel system in diesel engine are. The diagram above shows the how the fuel injection components fit together. The main difference between carburetor and fuel injection system carburetor zfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection system zthe fuel speed at the point of delivery is greater than the. All fuel line from the pump to the throttle body should be 38 or 06 an and pressure rated for fuel injection use 45 psi. With this partnership, victor aviation now has the capability to perform warranty repairs general repairs and overhauls per precisions overhaul manuals, service bulletins and service information. I have the fuel pressure line coming out of the outlet side of the enginedriven fuel pump. Drive fuel starved vehicles and perform fuel injection cleaning service outside of the shop.110 124 96 199 536 1193 747 538 692 1367 773 405 762 312 1148 728 403 1112 823 1235 1498 413 1290 148 1338 907 45 901 388 243 332 750 199 549 1309 613 1232 504 1189 994