[Code of Federal Regulations]

[Title 40, Volume 31]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR1039.140]



[Page 499]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 1039_CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD 

COMPRESSION-IGNITION ENGINES--Table of Contents

 

          Subpart B_Emission Standards and Related Requirements

 

Sec.  1039.140  What is my engine's maximum engine power?



    (a) An engine configuration's maximum engine power is the maximum 

brake power point on the nominal power curve for the engine 

configuration, as defined in this section. Round the power value to the 

nearest whole kilowatt.

    (b) The nominal power curve of an engine configuration is the 

relationship between maximum available engine brake power and engine 

speed for an engine, using the mapping procedures of 40 CFR part 1065, 

based on the manufacturer's design and production specifications for the 

engine. This information may also be expressed by a torque curve that 

relates maximum available engine torque with engine speed.

    (c) The nominal power curve must be within the range of the actual 

power curves of production engines considering normal production 

variability. If after production begins it is determined that your 

nominal power curve does not represent production engines, we may 

require you to amend your application for certification under Sec.  

1039.225.

    (d) Throughout this part, references to a specific power value or a 

range of power values for an engine are based on maximum engine power. 

For example, the group of engines with maximum engine power above 560 kW 

may be referred to as engines above 560 kW.