TB/T 2745-2017 Approval tests for diesel engines of motive power units
1 Scope
1.1 This standard specifies the type approval tests for new types of diesel engines intended for installation in railway motive power units.
1.2 This standard is applicable to diesel traction engines for installation in railway motive power units with the exception of engines intended for special locomotives (e.g. mine or refinery locomotives) as well as diesel traction engines with an effective power of less than 100kW.
1.3 This standard may be applied by the railways for their own use if they wish to obtain a comprehensive guarantee of service reliability for any particular model of diesel engines of motive power units.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 8190.1-2010 Reciprocating internal combustion engines - Exhaust emission measurement - Part 1: Test-bed measurement of gaseous and particulate exhaust emissions (ISO 8178-1-1:2006, IDT)
GB/T 8190.4-2010 Reciprocating internal combustion engines - Exhaust emission measurement - Part 4: Steady state test cycles for different engine applications (ISO 8178-4:2007, IDT)
GB/T 8190.5-2011 Reciprocating internal combustion engines - Exhaust emission measurement - Part 5: Test fuels (ISO 8178-5:2008, IDT)
ISO 1204 Reciprocating internal combustion engines - Designation of the direction of rotation and of cylinders and valves in cylinder heads and definition of right-hand and left-hand in line engines and locations on an engine
ISO 3046-1 Reciprocating internal combustion engines - Performance - Part 1: Declarations of power, fuel and lubricating oil consumptions and test methods - Additional requirements for engines for general use
ISO 3046-3 Reciprocating internal combustion engines - Performance - Test measurements
ISO 9000 Quality management systems - Fundamentals and vocabulary
UIC 623-1:2008 Approval procedures for diesel engines of motive power units
UIC 624:2006 Exhaust emission tests for diesel traction engines
UIC 800-00 Application within the UIC of international units of measurement (S.I. Units)
3 Definitions
3.1
choice of units
all units used in this standard must comply with the SI International System in accordance with UIC 800-00
3.2
auxiliaries
the definitions of the dependent/independent, essential/non-essential auxiliaries shall comply with those in ISO 3046-1
However, the input power of engine cooling fans is an exception to ISO 3046-1 since these fans (the power absorbed by these fans depends on the structure of this equipment on the locomotive) are essential independent auxiliaries on railway traction equipment, whether they are driven directly or indirectly by the diesel engine.
3.3
kinds of power output
the nominal power output and the nominal speed indicated on the engine have to correspond with the maximum power output and maximum speed in service
Effective power output: power available at the drive shaft minus the power required for the essential dependent auxiliaries, if they are driven directly or indirectly by the diesel engine.
UIC nominal power output (hereinafter referred to as "nominal power"), according to ISO 3046-1, is equal to:
——ISO standard power if the essential dependent auxiliaries are driven directly or indirectly by the diesel engine.
——ISO continuous power minus the power absorbed by the auxiliaries if they are driven by an outside power source. In this case, the power used by each of these auxiliaries and measured in performance test conditions shall be noted separately.
The cooling fans of water cooled diesel engines shall be considered, according to 3.2, as essential independent auxiliaries.
Foreword i
1 Scope
2 Normative references
3 Definitions
4 Documents submitted by the manufacturer
4.1 General
4.2 Dimensional installation drawing
4.3 Technical data table of engine
4.4 Characteristic curves of the diesel engine
4.5 Engine impact on environment
5 Approval test
5.1 General
5.2 Rig test conditions
5.3 Performance test
5.4 Endurance test
5.5 Data measurements
6 Interruptions during the test
6.1 Periods
6.2 Tolerated interruptions
6.3 Role of the test inspectors
7 Assessment
7.1 Measurements on completion of the test
7.2 Final meeting with engine assessment
8 Test report
Annex A (Normative) Pollutant emission measurements: limits, findings and diagrams
Annex B (Normative) Measuring point, equipment and result
Annex C (Normative) Table of measured data for the final test report
Annex D (Normative) Calculation of thermal balance
Annex E (Normative) Chronology of endurance test
Annex F (Normative) Test cycles
