| 摘要 |
1,158,953. Measuring fuel consumption. O. C. BLOMGREN. April 3, 1967 [April 4, 1966; Feb. 16, 1967], No. 15236/67. Heading F1B. The invention relates to fuel consumption rate measuring apparatus for use in association with an engine having a fuel supply line connected from a fuel tank to fuel injection means and a return line connected from the fuel injection means to the fuel tank to recirculate unused fuel to the fuel tank. The apparatus comprises fuel storage means, calibration means adapted to accurately delimit a specified quantity of fuel in the fuel storage means, fuel supply directing means arranged when actuated to block the flow of fuel from the fuel tank to the fuel injection means and to provide a flow of fuel from the fuel storage means to the fuel injection means fuel return directing means arranged when actuated to block the flow of unused fuel from the fuel injection means to the fuel tank and to cause the unused fuel to be returned from the fuel injection means to the fuel storage means, test control means for actuating the fuel supply directing means and the fuel return directing means and time measuring means for ascertaining the fuel consumption rate of the engine for a particular state of engine operating conditions by activating the test control means and using the time measuring means to determine the time required to consume the specified quantity of fuel. As shown a fuel tank 179 provides fuel through a fuel supply line 181 containing conventional filters 183 and 185 in series to fuel injection means 187 (injection pump). The unused fuel from the injection pump 187 is returned to the fuel tank 179 through a fuel return line 189. When it is desired to connect the fuel consumption rate measuring device 177 into the fuel supply system the fuel supply line 181 is broken at some point preferably between the filters 183, 185 as illustrated by the dotted line 191. The portion of the fuel supply line 181 on the side of the break toward the fuel tank is connected to fuel supply in tap 67. The portion of the fuel supply line 181 on the side of the break toward the injection pump 187 will be connected to the fuel supply out tap 65. Three calibration marks 29, 31 and 33 Fig. 2 (not shown) are scribed on the surface of the housing of the fuel container 27. Calibration marks 29 and 31 define a portion 35 of the container 27 which will hold a first specified quantity of fuel while calibration marks 31 and 33 define a portion 37 of the container 27 which will hold a second specified quantity of fuel. Adjacent each of the calibration marks are calibration discs 39, 41 and 43. The push button 61 may be depressed in order to operate the fill control solenoid and thereby actuate the fuel introducing valve assembly. To measure the fuel consumption rate, toggle switch 59 is thrown to the test position. In this position, both of the test control solenoids will be operated. |
