In-cylinder control of particulates and nitric oxide for diesel engine

Patent · Tue Nov 28 04:00:00 EST 1989

OSTI ID:7011462

Hunter, C E; Cikanek, H A

This patent describes a method of providing simultaneous and concurrent in-cylinder control of the formation of particulates and nitric oxide during the combustion cycle of direct-injected diesel fuel and pressure charged air in a combustion chamber of heavy duty diesel engine. The combustion chamber being defined in part by a piston crown separated by a supply of lubricating oil by piston rings and employing accepted advanced combustion techniques for introducing, distributing and compressing the fuel and air. The method comprises: injecting the diesel fuel at a pressure equal to or greater than 16 {times} 10{sup 3} psi through injector ports having a diameter of less than 0.22 mm; retarding the state of fuel injection from TDC by 2 {degrees} {minus} 5 {degrees} , and limiting ingress of lubricating oil into the combustion chamber by increasing the piston ring to cylinder bore concentricity through the use of noncompressed cylinder sleeves defining the cylinder bore.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4883032; A
• Application Number: PPN: US 7-299853--A
• OSTI ID: 7011462
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330701 -- Emission Control-- Nitrogen Oxides
330705 -- Emission Control-- Particulates
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION ABATEMENT
CHALCOGENIDES
COMBUSTION CHAMBERS
COMBUSTION CONTROL
CONTROL
DIESEL ENGINES
EMISSION
ENGINES
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION ABATEMENT