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In this report, basically, it has been included the analyzing of a fin of the electric water pump motor cover temperature distribution. The effect of the convective heat transfer coefficient (h) for temperature distribution when transferring heat along the fin has been analyzed. Three different ‘h’ values have been taken and temperature distributions have been taken by using the MATHCAD program. It is shown graphically the temperature distribution along the length of a fin when changing the ‘h’ value. Importance of the convective heat transfer coefficient also has been discussed. Also variation of convective heat transfer coefficient with turbulent flow and laminar flow has been discussed.
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The installation of the APR FSI Fuel Pump onto any VAG 2.0T FSI engine should be carried out using all of the factory recommended installation procedures and precautions. The notes, recommendations, and precautions in this document are intended as a supplement to those already provided by VAG. This entire document must be read and understood before attempting to install your APR FSI Fuel pump. WARNING: Direct Injection FSI fueling systems run at very high pressures. The pressure in the fuel lines must be relieved prior to removal of the fuel pump to prevent serious bodily injury. Please consult a factory-approved repair manual (i.e. Bentley manual) for the proper procedures and precautions.To ensure that your vehicle is ready for the installation of the APR FSI pump, you must be aware of the condition of the mechanical components that drive the pump in your 2.0T FSI equipped vehicle. This is critical to the operation and longevity of your vehicle and your APR FSI Fuel Pump. The high-pressure FSI fuel pump used in the 2.0T FSI equipped vehicles is mechanically driven by the intake camshaft and is therefore directly tied to the vehicle valve train assembly. In addition, there is a low-pressure feed pump at the fuel tank of your vehicle and a fuel filter with integral pressure-regulator that are important to the operation of the APR FSI pump. To add to the complexity, there are many auxiliary sensors and pressure relief valves that are all critical to the proper operation of the direct injection fueling system on your vehicle. It is the responsibility of the customer and/or the installer to ensure that all the vehicle components driving the FSI fuel pump are in good working order and are not in a state of excessive wear or failure prior to the installation of the APR pump. Volkswagen of America, Inc. has released a Technical Service Bulletin (TSB) stating that there is a known problem concerning premature wear of the intake camshaft lobe and camshaft follower that drive the FSI high-pressure fuel pump. This wear has been known to cause fuel delivery issues and fuel rail pressure fluctuations. If this wear goes unchecked, wear can also begin on the base of the FSI high-pressure fuel pump. In some cases, this wear can result in a complete failure of the intake camshaft which may result in extensive damage to the engine valve train, head, and other related components. The published TSB describes the proper method for inspecting your vehicle for this type of wear and APR, LLC Tech Article “APR FSI Fuel Pump Installation Notes, Recommendations, and Precautions”;
The following pertains primarily to Mallory COMP Pumps equipped with Gerotor style pump systems, but also applies to many other fuel systems. BASIC INFORMATION The Mallory Gerotor style COMP Pumps are more forgiving than vane style pumps, but it is still important to insure they are properly mounted and receive clean fuel. The correct mounting position is even with or below the tank and preferably behind or next to the fuel tank. All electric pumps push fuel far better than they can pull (suck) fuel. Make sure that a low restriction filter is between the tank and the pump. A 40-micron element it sufficient to protect the pump from contamination such as dirt, rust, fuel cell foam, etc. Mallory has them available that will screw directly into the pump itself. Electric pumps need a clean and stable power source. Run a minimum of 12 gauge wires to the pump if it is relatively close to the power source. Longer runs should utilize 10 gauge wire instead. With a trunkmounted battery, we recommend that you use a relay to allow for short power wires to be run. Do not pull power from a common terminal, especially if the ignition is wired to the same terminal.
The best location for mounting any electric fuel pump is the rear of the vehicle. The inlet and outlet of the pump must be mounted below the lowest point of the tank. This is necessary to allow for an adequate fuel supply. The pump is designed to push fuel and not designed to suck fuel out of the tank. It needs to be gravity-fed or if it’s pulling from the top of the tank, it needs to develop a siphon feed to the pump. The pump should be mounted on the chassis, in a vertical position with the pump motor on top. Avoid exposure of the pump and fuel lines to moving parts and to any hot areas, such as the exhaust. The pump should not be mounted in a closed area, such as the vehicle’s trunk. Follow the steps below for mounting the pump. 1-800-345-4545 jegs.com WARNING! THE PUMP MUST BE LOCATED SO THAT INTERFERENCE BETWEEN THE VEHICLE’S BODY AND ITS CHASSIS MOVEMENT IS AVOIDED. THE PUMP AND ITS CONNECTING HOSES MUST NOT BE SUBJECTED TO LOW GROUND CLEARANCE, WHERE ANY FLYING ROCKS OR ROAD DEBRIS CAN CAUSE DAMAGE. FAILURE TO AVOID THESE HAZARDS WILL LEAD TO PUMP DAMAGE, WHICH COULD RESULT IN FIRE, PROPERTY DAMAGE, SERIOUS INJURY, AND/OR DEATH.
ROTARY FUEL PUMPS FGA PUMP: IN-LINE GEROTOR TYPE Flow rate >200 lph (53 gph) @ 300 kPa (43 psi) Pressures to 500 kPa (75 psi) Current: as low as 3.5 amps @ 300 kPa (43 psi) @ 13 volts > 0 H O lift 5” 2 Operating temperature: -40°~+155° F Hot fuel losses as low as 25% Contamination filter @ < 30 micron >3,000 hour life Da tr4 mm (.5) i e: 2 me 16 ” Integral pressure relief valve Mounting: vertical (outlet on top) to horizontal OPTIONS: o Carbon commutator o Outlet check valve o Inlet fittings o Outlet fittings o Electrical connectors o Mounting kit FGB PUMP: IN-TANK GEROTOR TYPE Flow rate to 250 lph (66 gph) @ 300 kPa (43 psi) Pressures to 900 kPa (130 psi) Current: as low as 1.0 amp @ 300 kPa (43 psi) @ 13 volts > 0 H O lift 5” 2 Operating temperature: -40°~+155° F Hot fuel losses as low as 20% Contamination filter @ < 30 micron >3,000 hour life Da tr3 mm (.”t i e: 1 me 12)o 3 mm (.”d p n i o mo e 9 15) e e d g n d l n Integral pressure relief valve Mounting: vertical (outlet on top) to horizontal OPTIONS: o Carbon commutator o Outlet check valve o RFI suppression o Inlet fittings o Outlet fittings o Electrical connectors o Inlet filter FTB PUMP: IN-TANK TURBINE TYPE Flow rate to 240 lph (63 ghp) @ 300 kPa (43 psi) Pressures to 500 kPa (75 psi) Current: as low as 3.4 amps @ 300 kPa (43 psi) @ 13 volts Operating temperature: -40°~+155° F Hot fuel losses as low as 5% Contamination filter @ < 30 micron >3,000 hour life Da tr3 mm (.5)o3 mm i e: 7 me 14 ”t 9 (.4)s memo e p mpc a e 15 ”(o dl u s h mb r @ 52mm (2.05") Walbro Worldwide Headquarters 7400 N. Oracle Road, #310 Tucson, Arizona 85704-6342 USA Telephone (520) 877-3000 Fax (520) 877-3006 Email: email@example.com We enable machines that make life better! Integral pressure relief valve Mounting: vertical (outlet on top) to horizontal OPTIONS: Carbon commutator Outlet check valve RFI suppression Outlet fittings Electrical connectors Inlet filter Flex fuel compatibility Walbro North America North American Sales Office Email: firstname.lastname@example.org Walbro Japan Asian Sales Office Email: email@example.com Walbro Europe European Sales Office Email: firstname.lastname@example.org Walbro China China Sales Office Email: email@example.com www.walbro.com Rotary 5/2013
Incomplete review of all the information in this document can cause errors. Read the entire Service Bulletin to make sure you have a complete understanding of the requirements In response to field reports of leaking Hartzell Engine Technologies’ (HET’s) fuel pump, Lycoming Engines requires replacement of all fuel pumps identified in Tables A and B with a verified fuel pump of the same part number. Lycoming Engines requires that the fuel pumps be replaced because fuel leaks at the fuel pump valve assembly have been observed from the overboard drain system. These leaks could be due to assembly issues associated with the valve assembly. Table A identifies suspect fuel pumps by part number and serial number that shipped on Lycoming engine models. Table B identifies suspect fuel pumps by part number and serial number that shipped as spare parts. Required Action for Fuel Pumps Shipped with Engines 1. Look for fuel leakage along the outlet of the overboard drain system. 2. Look at your engines. Review engine serial numbers and fuel pump serial numbers against Table A and Table B (in the event a spare fuel pump in Table B was installed on the engine). If you find an engine serial number and/or fuel pump serial number identified in Tables A or B on one of your engines, obey the warranty terms in this Service Bulletin. 3. Review fuel pump serial numbers in your spare parts inventory against Table B. If you find a fuel pump serial number identified in Table B, obey the warranty terms in this Service Bulletin.