Fuel System 114 Diesel Control System
Operation Principle
PIEZO ACTUATOR
The Piezo Actuator is made up of several floors of cylindrical piezo-ceramic (height: approximately 90
㎛
).
This lengthens by from 1.5% through 2.0% of its length if voltage is applied (Piezoelectric Converse Effect) and this
length is “Stroke”. The number and the cross section of the ceramic are proportional to the actuator’s stroke and
output respectively.
HYDRAULIC COUPLER
. The hydraulic coupler is located under the piezo actuator and amplifies the actuator’s output by the cross section
ratio of the upper and the lower pistons. At this time, the actuator’s stroke is lengthened. The hydraulic oil is the fuel
and the oil pressure to operate the hydraulic coupler normally is from 1 through 10 bar.
Summary of Contents for S220P
Page 3: ...Engine Mechanical System 2 General Information General Information Specifications ...
Page 4: ...Engine Mechanical System 3 General Information Specifications ...
Page 5: ...Engine Mechanical System 4 General Information Specifications ...
Page 10: ...Engine Mechanical System 9 Cooling System Special Service Tools ...
Page 11: ...Engine Mechanical System 10 Cooling System Special Service Tools ...
Page 18: ...Engine Mechanical System 17 Cooling System ...
Page 19: ...Engine Mechanical System 18 Cooling System Thermostat ...
Page 55: ...Engine Mechanical System 54 Lubrication System ...
Page 73: ...Engine Electrical System 72 General Information Troubleshooting Charging system ...
Page 74: ...Engine Electrical System 73 General Information Starting system Special service tools ...
Page 75: ...Engine Electrical System 74 Charging System Charging system Alternator ...
Page 80: ...Engine Electrical System 79 Starting System Components ...
Page 91: ...Fuel System 90 General Information Special Service Tools ...
Page 112: ...Fuel System 111 Diesel Control System EOI Engine Operating Indicator System Circuit Diagram 1 ...
Page 117: ...Fuel System 116 Diesel Control System Specification Circuit Diagram ...