The static leakage of a common rail (CR) injector is the flow-rate that is recirculated from the injector when the pilot-stage is not actuated. It is a critical issue in the development of modern CR injectors, because it can limit the maximum rail pressure level. An experimental methodology for splitting the static leakage between the contributions that pertain to the different leakage paths has been developed and applied to an innovative solenoid injector for the Brazilian, Russian, Indian, and Chinese (BRIC) market. The weak point of this injector was the excessively high static leakage compared to solenoid injectors for the European and U.S. markets. The static leakage splitting procedure allowed the sources of this leakage to be determined and a newly designed prototype was manufactured on the basis of the outcomes of this analysis. The new prototype featured a significant reduction (up to 54%) in the static leakage, compared to the original injector, and its leakage performance was almost the same as the typical one of Euro 5 solenoid injectors. Finally, a finite element method (FEM) analysis has been carried out on the improved BRIC injector. Guidelines are provided for a more refined design of some critical pieces of the component internal layout in order to further reduce its static leakage.
Skip Nav Destination
Article navigation
February 2018
Research-Article
New Methodology for the Identification of the Leakage Paths and Guidelines for the Design of Common Rail Injectors With Reduced Leakage
A. Mittica,
A. Mittica
Energy Department,
Politecnico di Torino,
Torino 10129, Italy
Politecnico di Torino,
Torino 10129, Italy
Search for other works by this author on:
P. Pizzo,
P. Pizzo
Energy Department,
Politecnico di Torino,
Torino 10129, Italy
Politecnico di Torino,
Torino 10129, Italy
Search for other works by this author on:
X. Wu,
X. Wu
Nanyue Fuel Injection Systems Co., Ltd.,
Hengyang 421007, China
Hengyang 421007, China
Search for other works by this author on:
H. Zhou
H. Zhou
Nanyue Fuel Injection Systems Co., Ltd.,
Hengyang 421007, China
Hengyang 421007, China
Search for other works by this author on:
A. Ferrari
A. Mittica
Energy Department,
Politecnico di Torino,
Torino 10129, Italy
Politecnico di Torino,
Torino 10129, Italy
P. Pizzo
Energy Department,
Politecnico di Torino,
Torino 10129, Italy
Politecnico di Torino,
Torino 10129, Italy
X. Wu
Nanyue Fuel Injection Systems Co., Ltd.,
Hengyang 421007, China
Hengyang 421007, China
H. Zhou
Nanyue Fuel Injection Systems Co., Ltd.,
Hengyang 421007, China
Hengyang 421007, China
1Corresponding author.
Contributed by the IC Engine Division of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received August 24, 2016; final manuscript received July 17, 2017; published online October 3, 2017. Assoc. Editor: Stani Bohac.
J. Eng. Gas Turbines Power. Feb 2018, 140(2): 022801 (10 pages)
Published Online: October 3, 2017
Article history
Received:
August 24, 2016
Revised:
July 17, 2017
Citation
Ferrari, A., Mittica, A., Pizzo, P., Wu, X., and Zhou, H. (October 3, 2017). "New Methodology for the Identification of the Leakage Paths and Guidelines for the Design of Common Rail Injectors With Reduced Leakage." ASME. J. Eng. Gas Turbines Power. February 2018; 140(2): 022801. https://doi.org/10.1115/1.4037862
Download citation file:
Get Email Alerts
Image-based flashback detection in a hydrogen-fired gas turbine using a convolutional autoencoder
J. Eng. Gas Turbines Power
Fuel Thermal Management and Injector Part Design for LPBF Manufacturing
J. Eng. Gas Turbines Power
An investigation of a multi-injector, premix/micromix burner burning pure methane to pure hydrogen
J. Eng. Gas Turbines Power
Related Articles
Effects of Amorphous Ti–Al–B Nanopowder Additives on Combustion in a Single-Cylinder Diesel Engine
J. Eng. Gas Turbines Power (September,2017)
Particulate Matter Emission Suppression Strategies in a Turbocharged Gasoline Direct-Injection Engine
J. Eng. Gas Turbines Power (October,2017)
Influence of the Injection Parameters on the Efficiency and Power Output of a Hydrogen Fueled Engine
J. Eng. Gas Turbines Power (April,2003)
Related Proceedings Papers
Related Chapters
Contamination and Impacts of Exploration and Production Waste Constituents
Guidebook for Waste and Soil Remediation: For Nonhazardous Petroleum and Salt Contaminated Sites
Advance SQL Injection to Web Applications and Single Point Perevention Layer Model
International Conference on Computer Research and Development, 5th (ICCRD 2013)
Later Single-Cylinder Engines
Air Engines: The History, Science, and Reality of the Perfect Engine