#INST FRANCAIS DU PETROLE [FR]

Optical internal combustion engine for tests with piston cooling

The engine has an extension placed on a lower piston (20) to carry an active piston (26). An oil pump (54) acquires cooling fluid e.g. oil, present in a base of a case (14) for distributing it to dist…

DRIVE·May 31·1 min read

F01P3/10 INST FRANCAIS DU PETROLE [FR]

Method for regenerating a NOX-trap with control of the lambda ratio of the exhaust gas

The fumes generates richness higher than 1 compared to line of exhaust. Evaluating the effective richness of the fumes to the line of exhaust by fuel post injection and adjusting the fumes by controll…

DRIVE·Apr 19·1 min read

F02D35/023 INST FRANCAIS DU PETROLE [FR]

System for controlling a combustion engine with direct injection and engine with such system

The method involves determining desired torque corresponding to request of a driver, by a torque determining unit (68). Desired indicated mean pressure is determined from the torque to establish param…

DRIVE·Mar 8·1 min read

F02D41/005 INST FRANCAIS DU PETROLE [FR]

Method for estimating richness of air-fuel mixture in a cylinder of a combustion engine

The method involves establishing a physical model (RTM) representing ejection of gas from cylinders and its movement from an exhaust circuit until it reaches a sensor. The model is coupled with an ext…

DRIVE·Sep 7·1 min read

A23B4/056 INST FRANCAIS DU PETROLE [FR]

Method for controlling turbo-charged internal-combustion engine

The method involves performing scavenging of waste gas from a cylinder, in admission phase, in a valve intersection phase in which an exhaust valve (20 1) and an inlet valve (14 1) are simultaneously …

DRIVE·Jun 22·1 min read

F02B37/00 INST FRANCAIS DU PETROLE [FR]

Method and apparatus for the desulphurisation of a NOx storage catalyst and the regeneration of a particulate filter

The process involves measuring the rate of saturation of a nitric oxide trap (22) and the rate of blockage of a particle filter (24). The trap and the filter are arranged in an exhaust line of an inte…

DRIVE·May 25·1 min read

B01D53/9409 INST FRANCAIS DU PETROLE [FR]

Turbocharged four stroke internal combustion engine having a variable volume exhaust gas device and method of operating such an engine

The engine has two cylinders with a combustion chamber (14), and an air inlet unit (16) having a tube (20) with a valve. The cylinders have an exhaust unit (18) including a tube (22) with a valve, and…

DRIVE·Jan 19·1 min read

F01N13/10 INST FRANCAIS DU PETROLE [FR]

Supercharged engine with indirect injection , EGR and process for supercharged air admission

The engine has a discharging duct (46) with an inlet through which supercharged air enters for supplying inserts (16) through orifices (48) of the discharging duct and for supplying inserts (18) throu…

DRIVE·Dec 22·1 min read

F02B17/00 INST FRANCAIS DU PETROLE [FR]

Engine and operating method for a supercharged four stroke engine

The process involves simultaneously opening inlet and exhaust valves of a cylinder in an inlet phase of a combustion cycle. Inlet and exhaust valves of another cylinder in compressed phase are closed.…

DRIVE·Dec 22·1 min read

F02B29/00 INST FRANCAIS DU PETROLE [FR]

Method of injecting fuel for an internal combustion engine having high sensibility injection and engine using such a method

The top face of the piston (22) has a bowl (26) with a central projection (28). The fuel jet angle (a1) is equal or less than 2Arctg(CD/2F) where CD is the cylinder diameter and F is the distance from…

DRIVE·Oct 1·1 min read

F02B1/12 INST FRANCAIS DU PETROLE [FR]

Internal combustion engine having fuel injection device

The engine, having at least one cylinder (10) with a head containing valves, has a fuel injector for each cylinder which delivers multiple jets (30) of fuel towards a concave annular cavity (34) in th…

DRIVE·Sep 17·1 min read

F02B1/12 INST FRANCAIS DU PETROLE [FR]

Method and engine ensuring the mixture of at least one gaseous fluid, like air, and a fuel in a combustion chamber of a direct injection internal combustion engine

The method is for charge mixing in a motor vehicle internal combustion engine cylinder (10) with a piston (22) having a bowl recess (28) formed in the piston crown. The fuel is injected (24) over an a…

DRIVE·Sep 3·1 min read

F02B1/12 INST FRANCAIS DU PETROLE [FR]

Combustion control of an internal combustion engine

Curves (A,A') show the pressure and energy release against crankshaft angle for a diesel/air/recirculated exhaust fuel mixture which has about 70% exhaust gas. If a smaller proportion (60%) of recircu…

DRIVE·Jan 29·1 min read

F02B1/12 INST FRANCAIS DU PETROLE [FR]

Method for controlling the fuel injection of a direct injected combustion engine

An injector (20) is centrally mounted in a cylinder head (12) and produces a conical spray. It has a dispersion angle (a1) such that there is a lowest position (PL) of the piston (18) which does not a…

DRIVE·Jan 29·1 min read

F02B23/02 INST FRANCAIS DU PETROLE [FR]

Method and device for electricity production in a fuel cell by the oxidation of hydrocarbons followed by a filtration of particles

Method for producing electricity in which a stream 1 of hydrocarbons and a stream 2 of air are reacted in a partial oxidation chamber 3, the operating conditions being: residence time in the chamber b…

DRIVE·Aug 14·2 min read

C01B3/32 INST FRANCAIS DU PETROLE [FR]

System and method for monitoring a particulate filter regeneration temperature within the exhaust line of an internal combustion engine

Method and system for controlling the periodic regeneration at limited temperature of a particulate filter (7) placed at the exhaust (2) of a thermal engine (1), diesel type for example, by combustion…

DRIVE·May 2·2 min read

F01N3/023 INST FRANCAIS DU PETROLE [FR]

Method for localising knocking in internal combustion engines

Pressure sensors are placed in a plane of the cylinder head joint. At least one of the sensors is offset from the plane of the other sensors. Three sensors are used where the appearance of a noise sou…

DRIVE·May 2·2 min read

G01L23/221 INST FRANCAIS DU PETROLE [FR]

Method to control auto-ignition in a four-stroke engine

In a four stroke engine which has two admission valves and two exhaust valves at light loads the first exhaust valve (1) opens conventionally during the exhaust stroke and the second exhaust valve (2)…

DRIVE·Apr 10·1 min read

F01L13/0015 INST FRANCAIS DU PETROLE [FR]

Optically improved engine for testing, particularly for measuring combustion parameters

The crankshaft (4) is connected to a slider (6) which is joined to the piston (8) by a strut (7). The piston is contained within a transparent cylinder (20) which is pressed against a cylinder head (1…

DRIVE·Jan 30·1 min read

G01M15/00 INST FRANCAIS DU PETROLE [FR]

Controlled self-ignition combustion process and four cycle engine with transfer conduits between exhaust and intake conduit

The control procedure, for use on a multi-cylinder 4-stroke engine with each cylinder (1) having at least one inlet (2) and exhaust (3) duct, consists of taking a quantity of the exhaust gas from one …

DRIVE·May 2·1 min read

F02B1/12 INST FRANCAIS DU PETROLE [FR]