초록 ▼

A diagnostic system is provided for aiding a technician or engineer in verifying that a fuel injector in a fuel injected engine is operating properly. The diagnostic system comprises a controller operatively coupled to an actuator for the fuel injector and to a fuel pressure sensor. The controller i

A diagnostic system is provided for aiding a technician or engineer in verifying that a fuel injector in a fuel injected engine is operating properly. The diagnostic system comprises a controller operatively coupled to an actuator for the fuel injector and to a fuel pressure sensor. The controller is configured such that, during a fuel injector test, the controller outputs a signal to the fuel pump so that pressurized fuel is supplied to the fuel injector. After the pressurized fuel is supplied to the fuel injector, the controller outputs a signal to the actuator to operate the fuel injector for a predetermined amount of time. The controller is also configured such that after the predetermined amount of time the fuel pump is turned off.

대표청구항 ▼

A diagnostic system is provided for aiding a technician or engineer in verifying that a fuel injector in a fuel injected engine is operating properly. The diagnostic system comprises a controller operatively coupled to an actuator for the fuel injector and to a fuel pressure sensor. The controller i

A diagnostic system is provided for aiding a technician or engineer in verifying that a fuel injector in a fuel injected engine is operating properly. The diagnostic system comprises a controller operatively coupled to an actuator for the fuel injector and to a fuel pressure sensor. The controller is configured such that, during a fuel injector test, the controller outputs a signal to the fuel pump so that pressurized fuel is supplied to the fuel injector. After the pressurized fuel is supplied to the fuel injector, the controller outputs a signal to the actuator to operate the fuel injector for a predetermined amount of time. The controller is also configured such that after the predetermined amount of time the fuel pump is turned off. ature (THD), the temperature (TFD) of the live steam introduced to the high-pressure turbine, the pressure (pFD) of the live steam introduced to the high-pressure turbine, the reheater pressure (P2), and combinations thereof. 3. The method as claimed in claim 1, wherein the characteristic curves are essentially linear with respect to a parameter selected from the group consisting of the load (L) applied to the installation, the pressure (P) before the high-pressure turbine blading, the reheater steam flow (M), and combinations thereof. 4. The method as claimed in claim 1, wherein the characteristic curves are essentially linear with respect to a parameter selected from the group consisting of the high-pressure turbine exhaust steam temperature (THD), the temperature (TFD) of the live steam introduced into the high-pressure turbine, the pressure (pFD) of the live steam introduced into the high-pressure turbine, the reheater pressure (P2), and combinations thereof. 5. The method as claimed in claim 1, wherein controlling comprises controlling based on a lower characteristic curve for the required reheater pressure value for an event selected from the group consisting of increasing high-pressure turbine exhaust steam temperature (THD), increasing inlet enthalpy (H) of the live steam introduced into the high-pressure turbine, increasing reheater pressure (P2), and combinations thereof. 6. The method as claimed in claim 1, wherein the installation includes a reheater inlet and a cold reheater main, the cold reheater main leading to the reheater inlet, and wherein controlling comprising controlling using the pressure (P1) in the cold reheater main before the reheater inlet as a control parameter for determining the characteristic curves. 7. The method as claimed in claim 1, wherein the characteristic curves depend on the reheater steam flow (M), on the high-pressure turbine exhaust steam temperature (THD), and on the live steam temperature (TFD), and wherein the characteristic curves are linear with respect to the reheater steam flow (M) and extend through a common intersection. 8. The method as claimed in claim 7, wherein the required value for the high-pressure exhaust steam temperature (THD) is determined by the live steam temperature (TFD), the high-pressure exhaust steam temperature (THD) being controlled to a value which is located around a constant value of about 100 degrees Celsius below the live steam temperature (TFD), the required value of the high-pressure exhaust steam temperature (THD) being kept within a range between a maximum value of about 320 degrees Celsius and a minimum value in the range from 420 to 450 degrees Celsius. 9. The method as claimed in claim 8, wherein the characteristic curves are continually rotated by means of an I-controller which can intervene multiplicatively or with a minimum choice, and comprising decreasing the high-pressure exhaust steam temperature (THD) by reducing the required value for the high-pressure exhaust steam temperature (THD). 10. The method as claimed in claim 1, wherein the installation includes an inlet valve arranged in the live steam main before the high-pressure turbine and an intercept valve arranged before the medium-pressure turbine, and wherein controlling comprises controlling the low-pressure bypass valve with the inlet valve and with the intercept valve, and wherein controlling comprises simultaneous trimming of the high-pressure turbine and the medium-pressure turbine or low-pressure turbine, and wherein the trimming conditions of the high-pressure turbine and of the medium-pressure turbine are employed for determining the characteristic curves. 11. An appliance useful for carrying out a method as claimed in claim 1, comprising: a bypass contro