Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile
Abstract
An internal combustion engine system includes an engine housing having a combustion cylinder, and a piston movable within the combustion cylinder to increase a pressure therein to an autoignition threshold for injected fuel. The piston includes a piston crown having a combustion face forming a combustion bowl, and varied in profile to form jet-jet interaction limiters at locations offset from fuel spray jet paths from a fuel injector. The jet-jet interaction limiters include a bowl component and a step component protruding, respectively, within the combustion bowl and a step located transitioning between the combustion bowl and a circumferential rim of the piston. Limiting jet-jet interaction limits soot production in exhaust produced by the engine.
- Inventors:
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Caterpillar, Inc., Peoria, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1892707
- Patent Number(s):
- 11274628
- Application Number:
- 16/889,958
- Assignee:
- Caterpillar Inc. (Peoria, IL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02F - CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
- DOE Contract Number:
- A18047; AC02-06CH11357
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 06/02/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Anders, Jonathan William, Kavuri, Naga Krishna Chaitanya, John, Bobby, Mohammad, Hyderuddin, Xu, Chao, and Kundu, Prithwish. Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile. United States: N. p., 2022.
Web.
Anders, Jonathan William, Kavuri, Naga Krishna Chaitanya, John, Bobby, Mohammad, Hyderuddin, Xu, Chao, & Kundu, Prithwish. Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile. United States.
Anders, Jonathan William, Kavuri, Naga Krishna Chaitanya, John, Bobby, Mohammad, Hyderuddin, Xu, Chao, and Kundu, Prithwish. Tue .
"Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile". United States. https://www.osti.gov/servlets/purl/1892707.
@article{osti_1892707,
title = {Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile},
author = {Anders, Jonathan William and Kavuri, Naga Krishna Chaitanya and John, Bobby and Mohammad, Hyderuddin and Xu, Chao and Kundu, Prithwish},
abstractNote = {An internal combustion engine system includes an engine housing having a combustion cylinder, and a piston movable within the combustion cylinder to increase a pressure therein to an autoignition threshold for injected fuel. The piston includes a piston crown having a combustion face forming a combustion bowl, and varied in profile to form jet-jet interaction limiters at locations offset from fuel spray jet paths from a fuel injector. The jet-jet interaction limiters include a bowl component and a step component protruding, respectively, within the combustion bowl and a step located transitioning between the combustion bowl and a circumferential rim of the piston. Limiting jet-jet interaction limits soot production in exhaust produced by the engine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {3}
}
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