UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

SAE J1995

(R) Engine Power Test Code - Spark Ignition and Compression Ignition - Gross Power and Torque Rating

active, Most Current
Buy Now
Organization: SAE
Publication Date: 1 January 2014
Status: active
Page Count: 17
scope:

This SAE Standard has been adopted to provide a basis for dynamometer determination of gross engine power and torque under reference conditions. It is intended for use primarily by engine manufacturers who supply engines for installation by others in applications where the engine manufacturer may not control the induction and exhaust system design or the speed at which the engine is run.

Field of Application

This test code document is applicable to both four-stroke and two-stroke spark ignition (SI) and compression ignition (CI) engines, naturally aspirated and pressure charged, with and without charge air cooling. This document does not apply to aircraft or marine engines.

The corresponding test code for net as installed power and torque rating is SAE J1349.

The document for mapping engine performance is SAE J1312.

Relationship to ISO 2534

ISO 2534 (1972) differs from SAE J1995® in several areas, among which the most important are:

a. This document is not limited to road vehicles.

b. This document requires inlet fuel temperature be controlled to 40 °C on CI engines with fixed displacement injection systems.

c. This document includes a reference fuel specification for both SI and CI engines.

d. This document includes a different procedure for testing engines with a laboratory charge air cooler (ISO method optional).

e. This document includes a different procedure for correcting power to reference atmospheric conditions on turbocharged CI engines.

Complete correlation has not been established with ISO 3046. It is expected that this power test code will eventually align with ISO 2534.

Document History

SAE J1995
January 1, 2014
(R) Engine Power Test Code - Spark Ignition and Compression Ignition - Gross Power and Torque Rating
This SAE Standard has been adopted to provide a basis for dynamometer determination of gross engine power and torque under reference conditions. It is intended for use primarily by engine...
June 1, 1990
Engine Power Test Code - Spark Ignition and Compression Ignition - Gross Power Rating, Standard;
1. Scope--This SAE Standard has been adopted by SAE to specify: a. A basis for gross engine power ratingb. Reference inlet air and fuel supply test conditionsc. A method for correcting observed power...
January 1, 1990
ENGINE POWER TEST CODE - SPARK IGNITION AND COMPRESSION IGNITION - GROSS POWER RATING
This document has been adopted by SAE to specify: A basis for gross engine power rating. Reference inlet air and fuel supply test conditions. A method for correcting observed power to reference...

References

Advertisement