A method for a hybrid-electric vehicle is presented, wherein a fuel tank is sealed closed during a first condition that includes an inductive charging event, and wherein degradation of a fuel tank pressure transducer is indicated responsive to a fuel tank pressure transducer output failing to ...
resealing the gas vapor system, then looks for a rise in vapor generation, watching the FTPS. The natural slosh of fuel inside the fuel tank, the exhaust temperature and the operation of the fuel pump should create a rise in vapor pressure. If the pressure...
The treating device is provided with a canister that collects the fuel vapor through a vapor line. A vapor control valve connected to the canister adjusts the flow of fuel vapor directed toward the canister from the tank. A pressure sensor is provide to detect the pressure in the tank. An...
The OTV weighs less than 1,400 g with a diameter of 160 mm, including a solenoid valve. The built-in solenoid valve is normally closed so that the tanks are closed pressure-tight when no electrical current is present. The cable outlets are bundled on one side, which makes installation and...
A method and apparatus for testing leaks in a compressed natural gas fuel system on an assembly line. The apparatus includes a filling receptacle, a filling conduit, a fuel tank assembly, a supply conduit, a pressure regulating assembly, and a joint box. The filling conduit extends between the...
Contaminated sock (filter) on the in-tank pump Poor electrical connector at the pump Diagnosing Procedure The main tools necessary to diagnose a faultyfuel pumpare a volt/ohmmeter and a fuel pressure tester. Remove the fuel filler cap, and listen for the fuel pump to energize as a helper tu...
6.1 gallons that I added to the left tank after the flight, I would expect the fuel flow during the first half hour of this flight to be 12.2 instead of the 30 that the graph shows. This tells me that I need to change the K-factor of the fuel flow sensor in my EFIS setup screen...
US patent 5,333,590 uses a threshold value R which is not fixed but is related to vapour volume and fuel temperature. US patent 5,680,849 adjusts a leakage occurrence threshold in dependence on pressure sensor precision, pressure leakage in the canister valve, the fuel tank capacity and ...
B1220 Fuel tank pressure sensor circuit open B1222 Fuel temperature sensor #1 circuit failure B1223 Fuel temperature sensor #1 circuit open B1224 Fuel temperature sensor #1 circuit short to battery B1225 Fuel temperature sensor #1 circuit short to ground ...
(12) and which has a vent line (14) that can be closed off by a shut-off valve (15); a tank aeration valve (16) connected to the adsorption filter via a valve line; a pressure feed-in point (21) on the valve line near the aeration valve and a tank-mounted pressure sensor (11...