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Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines. [1] With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings ...
A dead weight tester (DWT) is a calibration standard method that uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are secondary standards which means that the pressure measured by a deadweight tester is defined through other quantities: length, mass and time.
The locomotive's total weight of 127 t (125 long tons; 140 short tons) – coincidentally, the same as the later Ae 4/7 – led to an average weight of 18.6 t (18.3 long tons; 20.5 short tons) per axle, within the specified 20 t (20 long tons; 22 short tons) limit. The axle load was not balanced, though; side 1 had significantly higher axle loads.
For 2005 model year heavy-duty engines, the NTE emission cap for NMHC plus NOx is 1.25 times 2.5 grams per brake horsepower-hour, or 3.125 grams per brake horsepower-hour. The basic NTE control area for diesel engines has three basic boundaries on the engine's torque and speed map.
All models of the Dash 9 Series are powered by a 16-cylinder, turbocharged, GE 7FDL 4-stroke diesel engine, with electronic fuel injection and split cooling. Dash 9 Series locomotives also ride on HiAd high adhesion trucks, with low weight transfer characteristics and microprocessor controlled wheelslip .
Fuel pressure gauge - Indicates the supply pressure of fuel to the carburetor (or in the case of a fuel-injected engine, to the fuel controller.) Fuel boost pump switch - Controls the operation of the auxiliary electric fuel pump to provide fuel to the engine before it starts or in case of failure of the engine-powered fuel pump.
This requires a quality assurance test to identify the possibility of leaks. A common procedure in the industry is to perform a pressure test on the tank. All holes are temporarily plugged and the fuel tank is pressurized with air. A gauge is used to monitor the air pressure. A drop in pressure reveals a leak in the tank.
This model was a variant of the C30-7 fitted with a 12-cylinder 7FDL12 engine generating the same power output as the B30-7. The smaller engine used less fuel than the 16-cylinder version. A total of 50 C30-7As were built in mid-1984, and delivered to Conrail.
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