Motor Oil Thickening - A CLR Engine Test Procedure Which Correlates with Field Service

1970 ◽  
Author(s):  
D. C. Bardy ◽  
P. A. Asseff
Keyword(s):  
Test Procedure ◽  
Engine Test ◽  
Motor Oil ◽  
Field Service ◽  
Oil Thickening

Three Aspects of Motor Oil Thickening

1970 ◽  
Author(s):  
W.C. Edmisten ◽  
J.V. Peterson ◽  
R.A. Sholts
Keyword(s):  
Motor Oil ◽  
Oil Thickening

scholarly journals Dynamic Simulation of the FT8-2™ Gas Turbine

1995 ◽  
Author(s):  
Alan Metzger
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Dynamic Simulation ◽  
Gas Turbines ◽  
Test Procedure ◽  
Clean Air Act ◽  
Commercial Production ◽  
Engine Test ◽  
Low Emission ◽  
Clean Air

With the approach of the 1990 Clean Air Act compliance limits, the race is on to produce a functional, low-emission gas turbine. While most prototype Dry Low NOx (DLN) gas turbines are based on existing designs, the leap in technology required to meet NOx abatement levels is significant. To meet these goals, significant testing is required before low-emission turbines are ready for commercial production. This paper describes the test procedure that was used to verify control system and modulating valve technology for Turbo Power & Marine’s FT8-2™ Dry Low NOx prototype turbine. In particular, dynamic turbine simulation before the actual engine test will be discussed. The method and benefits of this test procedure will be presented.

scholarly journals The reasons and adverse effect of internal diesel injector deposits formation

2014 ◽  
Vol 156 (1) ◽  
pp. 20-29
Author(s):  
Zbigniew STĘPIEŃ
Keyword(s):  
Adverse Effect ◽  
Test Procedure ◽  
Formation Mechanisms ◽  
Engine Test ◽  
Paper Report ◽  
Diesel Injection ◽  
Different Types ◽  
Before And After ◽  
Long Time ◽  
State Of Affairs

The paper report on the state of affairs so far in the scope of internal diesel injection deposits (IDID) issue affecting modern diesel high pressure common rail (HPCR) systems. Different types of deposits have been described and the factors supporting their creation. These deposits have been extensively studied to understand their formation mechanisms and composition. To this end an engine test procedure was developed to assess the deposit forming tendencies of various types. Findings of two long time dynamometer engine tests in which the course of the IDID formation and HPCR performance impairing was followed by measurement different engine parameters have been reported. Performance evaluation of HPCR injectors before and after tests have been presented also.

Evaluation of Test Bench Engine Performance Measurements in Relation to Vehicle Measurements on Chassis Dynamometer

2015 ◽  
Author(s):  
Claus Suldrup Nielsen ◽  
Jesper Schramm ◽  
Anders Ivarsson ◽  
Azhar Malik ◽  
Terese Løvås
Keyword(s):  
Steady State ◽  
Test Bench ◽  
Test Procedure ◽  
Driving Cycle ◽  
Engine Test ◽  
Engine Test Bench ◽  
Chassis Dynamometer ◽  
Test Procedures ◽  
Steady State Method ◽  
Vehicle Test

A 1600 cc direct injected turbocharged Euro 5 diesel engine was operated on standard diesel fuel from a gas station in Denmark for evaluation of the test bench procedure. The NEDC (New European Driving Cycle), FTP-75 (Federal Test Procedure) and WLTP (World Harmonized Light Vehicle Test Procedure) driving cycles were simulated in the engine test bench in two ways: 1) by transient engine operation were the inertia of the vehicle during deceleration was simulated by addition of power from an electric motor mounted on the crank shaft, and 2) by steady state measurements where the total driving pattern was simulated from an integration of multiple steady state measurements. The mathematical model that calculates equivalent NEDC driving cycle vehicle emissions from the engine steady state measurements in the test bench, starting with warm engine, is presented. By applying this model any driving cycle emissions can be calculated from the presented tabulated steady state measurements, starting with warm or cold engine. Both engine test methods showed acceptable agreement with measurement in an NEDC vehicle test on chassis dynamometer where the vehicle was equipped with a similar engine as the test bench engine. The two engine test bench methods gave very similar results, but the transient engine test procedure showed a little higher emission of CO2 and NOx, results that were closest to the vehicle measurements. This is interpreted as a result of extra emissions when the engine adjusts from one operating point to the next during transient operation. These extra emissions are not caught in the steady state method. Application of the two engine test procedures on the FTP-75 procedure and the newer WLTP showed that the steady state engine test method gave significantly lower emissions of NOx and a little lower CO2 emissions compared to the transient engine test. The results indicated that this was mainly an effect of the time delay on the engines EGR system adjustment, which is not caught in the steady state method. The advantages and disadvantages of applying the different measurement methods and test procedures are discussed in relation to introduction of new test procedures in order to reduce engine/vehicle emissions.

Sign in / Sign up

Export Citation Format

Share Document