Concepts and Evolution of Injector for Common Rail System DENSO CORPORATION

Format:

Conference/Event

Author/Creator:

Matsumoto, Matsumoto, author.

Contributor:

Date, Kenji

Yamada, Kōichi

Conference Name:

SAE 2012 International Powertrains, Fuels & Lubricants Meeting (2012-09-18 : Malmo, Sweden)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Diesel injection equipment is required to be more accurate and higher in pressure to meet the increasingly strict emission, fuel consumption regulations and higher engine performance. It also needs to achieve a number of requirements such as robustness against diversified market fuels, pressure maintenance characteristics in the idle stop system (ISS), easy installation to engine, et cetera One of the key component to meet these demands is injector. DENSO has been working to develop injector according to the following five concepts which are seemingly conflicting, since several years.DENSO launched 200 MPa piezo injector for passenger cars and light duty trucks based on the above concepts in 2008.[1] After that, a solenoid-actuated injector which is capable of up to 250 MPa was developed to assure longer lifespan not only for passenger cars and light duty trucks but also for commercial, agricultural, industrial and construction vehicles subject to stricter service environment. This solenoid injector has potential to achieve 300 MPa, and our trial product has already been applied to some laboratories, which are demonstrating the effects of increased pressure. [2]This paper reports the new concept solenoid injector structure and performance combining high pressure up to 250 MPa comparable with the piezo injector, as well as excellent fuel robustness and reliability

Notes:

Vendor supplied data

Publisher Number:

2012-01-1753

Access Restriction:

Restricted for use by site license