Investigations on Combustion Process of Low-pressure CNG Compound Direct Injection Spark-ignited Engines Tianjin Univ

Format:

Conference/Event

Author/Creator:

Hu, Hu, author.

Contributor:

Hou, Shengzhi

Conference Name:

Small Engine Technology Conference & Exposition (2010-09-28 : Linz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

Natural gas is regarded as one of the most potential alternative fuels of engines because of its fruitful storage, good obtainable resources, and high octane value, et cetera Compared with port fuel injection (PFI), Gasoline direct injection (GDI) has many advantages on volumetric efficiency improvement, lean-burning, emissions control, et cetera A set of measuring and data acquisition system on CNG direct injection spark-ignited engines and the CNG multi-direct injection system are developed in this paper. Based on different injection modes of CNG single DI and compound DI (main injection and auxiliary-Injection), the investigations on combustion process of CNG DI engines has been conducted by the factors of in-cylinder mixture formation, air/fuel ratio, and injection timing, et cetera Meanwhile, the three-dimension simulation on mixture formation and combustion principle of low-pressure CNG compound direct injection engines has also been researched. As conclusions, the conception of "Injection window" is issued in this paper, and the theoretic supports and technical measures will be obtained by the testing results and simulation analysis on controlling strategies of the low-pressure CNG direct injection engines

Notes:

Vendor supplied data

Publisher Number:

2010-32-0052

Access Restriction:

Restricted for use by site license