NC HT1.0 - Fuel System Specifications

21
Technical Specifications.
Fuel System
Item Factory Specifications Allowable Limit
Injection Pump Injection Timing
(3000min
-1
(rpm))
Injection Timing
(3600min
-1
(rpm))
0.30 to 0.33rad
(17 to 19°)
Before T.D.C.
0.35 to 0.31rad
(15.5 to 17.5°)
Before T.D.C.
-
-
Injection Pump (BG Type) Injection Timing
(60 Hz / 1800 min
-1
(rpm))
0.27 to 0.31rad
(15.5 to 17.5°)
Before T.D.C
-
Pump Element Fuel Tightness - 13.73MPa
140kgf/cm²
Delivery Valve Fuel Tightness 10 seconds
13.73 → 12.75MPa
140 → 130kgf/cm²
1991 → 1849psi
5 seconds
13.73 → 12.75 Mpa
140 →130kgf/cm²
1991 → 1849psi
Injection Nozzle Injection Pressure 13.73 to 14.71MPa
140 to 150kgf/cm²
1991 to 2134psi
-
Injection Nozzle Valve Seat Valve Seat
Tightness
When the pressure is
12.75MPa
(130kgf/cm², 1849 psi),
The valve seat must be
fuel tightness.
-