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ISO 3046-4

3rd Edition, December 1, 2009

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Reciprocating internal combustion engines — Performance — Part 4: Speed governing

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Description / Abstract:

This part of ISO 3046 establishes a classification for the requirements and parameters of speed-governing systems and specifies terms and definitions of typical engine speeds for reciprocating internal combustion (RIC) engines. Where necessary, individual requirements are given for particular engine applications.

This part of ISO 3046 applies to RIC engines for land, rail-traction and marine use, excluding engines used to propel road-construction and earth-moving machines, agricultural and industrial types of tractors, road vehicles and aircraft. Also excluded are self-governing engines and those engines requiring only maximum speed or maximum fuel delivery limitation.

This part of ISO 3046 defines requirements for compression–ignition oil engines (diesel engines). For spark ignition engines and dual fuel engines, special requirements can apply.

NOTE 1 Performance and parameters for speed-governing systems applied to RIC engine driven generating sets are specified in ISO 8528-2 and ISO 8528-5.

NOTE 2 The terms and definitions of typical engine speeds in connection with overspeed protection devices are specified in ISO 3046-6.
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