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1. WO2007026113 - AN ENGINE WHICH OPERATES REPEATEDLY WITH A MULTI-STAGE COMBUSTION PROCESS

Publication Number WO/2007/026113
Publication Date 08.03.2007
International Application No. PCT/GB2006/003001
International Filing Date 11.08.2006
IPC
F02B 75/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines, e.g. single-cylinder engines
02Engines characterised by their cycles, e.g. six-stroke
F02B 21/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
21Engines characterised by air-storage chambers
F02M 23/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
23Apparatus for adding secondary air to fuel-air mixture
F02M 25/07 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
06adding lubricant vapours
07adding exhaust gases
CPC
F02B 1/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
1Engines characterised by fuel-air mixture compression
12with compression ignition
F02B 21/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
21Engines characterised by air-storage chambers
F02B 75/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines
02Engines characterised by their cycles, e.g. six-stroke
021having six or more strokes per cycle
F02M 2023/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
23Apparatus for adding secondary air to fuel-air mixture
008by injecting compressed air directly into the combustion chamber
F02M 26/01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
01Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
Applicants
  • LOTUS CARS LIMITED [GB]/[GB] (AllExceptUS)
  • TURNER, James, William, Griffith [GB]/[GB] (UsOnly)
  • MILOVANOVIC, Nebojsa [RS]/[GB] (UsOnly)
Inventors
  • TURNER, James, William, Griffith
  • MILOVANOVIC, Nebojsa
Agents
  • PLUCKROSE, Anthony, William
Priority Data
0517800.901.09.2005GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AN ENGINE WHICH OPERATES REPEATEDLY WITH A MULTI-STAGE COMBUSTION PROCESS
(FR) MOTEUR A PROCEDE DE COMBUSTION MULTIPHASE REPETE
Abstract
(EN)
The present invention provides an internal combustion engine which operates repeatedly a multi-stage combustion process. During a first stage of combustion (Figurel (a) - Figurel (c)) supply means (12) supplies fuel and air to a combustion chamber and the supplied fuel and air are combusted by a spark ignition Otto process or by a compression ignition Diesel process. Then (Figure 1 (d)) at least a majority of the combusted gases resulting from the first stage combustion are retained in the combustion chamber, additional air is supplied to the combustion chamber (Figure 1 (e)) and the resulting mixture is combusted in a second combustion stage (Figure 1 (e) and Figure l(f)) by homogeneous charge compression ignition. The mixture of fuel and air during the first stage combustion is a rich mixture and the mixture of fuel and air and combusted gases during the second stage of combustion is a week mixture .
(FR)
L’invention concerne un moteur à combustion interne à procédé de combustion multiphase répété. Durant une première phase de combustion (Figure 1(a) - Figure 1(c)), un moyen d’alimentation (12) alimente en air et en carburant une chambre de combustion. La combustion de l’air et du carburant introduits dans la chambre à combustion s’effectue par un cycle de Beau de Rochas à allumage par étincelle ou par un cycle Diesel à allumage par compression. Par la suite, (Figure 1 (d)) la majorité au moins des gaz de combustion issus de la première phase de combustion sont maintenus dans la chambre de combustion dans laquelle on injecte davantage d’air (Figure 1 (e)) avant de réaliser la combustion du mélange obtenu dans une deuxième phase de combustion (Figure 1 (e) et Figure 1(f)) par allumage par compression à charge homogène. Le mélange de carburant et d’air au cours du premier stade de combustion est un mélange riche et le mélange de carburant et d’air au cours du deuxième stade de combustion est un mélange pauvre.
Also published as
EP06765255
EP6765255
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