摘要:
The invention relates to a variable flow reducing valve and distribution system for compressed air injection engines, comprising a high pressure compressed air tank and a buffer capacity and operating on mono or dual energy with dual or triple supply mode. Said invention also comprises a system for controlling the stroke of the piston which can be used to stop said piston at the dead centre. Moreover, the air supply in the final use buffer capacity and the supply to the cylinders are ensured by pilot valves. The cams of the aforementioned pilot valves, which are used to control the rocker arm rods, are positioned directly on the flanges of the crankshaft (14) and each rocker arm pivots around a mobile shaft (21) that can move between the two ends thereof, thereby enabling the changing of the lever arm ratio which determines the lifting of the valve according to the movement of the rocker arm rod. The invention is suitable for use as a gas reducing valve or for engine or compressor distribution systems.
摘要:
A pollution control method and related devices for cyclical internal combustion engines having a separate combustion chamber (1), wherein the compression chamber, the combustion chamber (1) and the expansion chamber (16) consist of three separate and entirely self-contained portions. During low-power operation, e.g. in urban traffic, the fuel injector (6) is no longer controlled during filling of the combustion chamber, whereby the combustion chamber is filled with high-temperature pure compressed air at each cycle. A small amount of additional air from an outer tank (23) for storing highly pressurized air at room temperature is fed into the combustion chamber substantially after the intake of compressed air from the engine compressor, and heated as it contacts the hot compressed air already present in the combustion chamber (1), whereafter it expands and increases the starting pressure to enable effective work to be produced during expansion.
摘要:
Method and devices for controlling the combustion of a four-stroke engine. For each cylinder, in addition to the main combustion chamber, a smaller secondary combustion chamber is provided. The secondary combustion chamber is completely separate and independently supplied with a compressed fuel-air mixture such that, when the mixture is ignited, the explosion that takes place through a transfer channel into the main combustion chamber, igniting the mixture contained therein. The main combustion chamber is not supplied with fuel at low speeds. Application is also contemplated for four-stroke engines with spark or other ignition and with rotary or valve timing.
摘要:
Device for controlling the evacuation of exhaust gases of a combustion chamber in an internal combustion engine.A rotary valve performs a continuous or alternate turning movement and synchronized with the rotation of the motor about an axis parallel to the axis of rotation of the motor and issues at the level of its transversal channel on one side on an orifice connected to the exhaust towards the outside.The invention is applied to the control of the exhaust of two stroke engines.
摘要:
An engine with an active chamber, having at least one piston (2) mounted in a cylinder (1) in a sliding manner and driving a crankshaft (5) via a slider-crank device (3, 4) and operating according to a four-phase thermodynamic cycle includes: an isothermal expansion without work; a transfer—slight so-called quasi-isothermal expansion with work; a polytropic expansion with work; and an exhaust at ambient pressure, preferentially supplied by compressed air contained in a high-pressure storage tank (12), through a buffer capacity, called a working capacity (11), which is expanded at an average pressure, called a working pressure, in a working capacity, preferentially through a dynamic pressure-reducing device (13), wherein the active chamber is included in the engine cylinder, the cylinder volume being swept by the piston and divided into two separate parts, a first part forming the active chamber (CA) and a second part forming the expansion chamber (CD).
摘要:
Method of disinfecting floors by injecting hot, wet compressed air into the floor, this air being produced by a generator, whether on board or not, consisting of two cylinders of different diameters, one (1) of large diameter into which the atmospheric air is drawn and then compressed in a chamber (11) to a pressure and temperature sufficient to allow almost instantaneous vaporization of a dose of liquid and the other (6), facing the chamber, of smaller diameter in which the charge of humidified compressed air will be partly expanded so as to bring it back to the chosen pressure and temperature for use in order to inject it into the floor.
摘要:
An engine supplied with compressed air includes a main drive piston (1) driving a crankshaft (5) and one active expansion chamber (13) of a variable volume allowing work to be produced and which is connected, by a passage (6), with the volume contained in the driving cylinder (2). The passage (6) includes a shutter (7) thus allowing the active expansion chamber to be isolated from or to be placed in contact with the dead volume, in such a manner that the engine works according to a four-phase thermodynamic cycle: * an isothermal expansion without work; * a transfer-slight expansion with work known as quasi-isothermal; * a polytropic expansion with work; * an exhaust at ambient pressure.
摘要:
Ambient temperature thermal energy cryogenic engine with constant pressure with continuous “cold” combustion at constant pressure and with an active chamber operating with a cryogenic fluid stored in its liquid phase, and used as a work gas in its gaseous phase and operating in a closed cycle with return to its liquid phase. The initially liquid cryogenic fluid is vaporized in the gaseous phase at very low temperatures and supplies the inlet of a gas compression device, which then discharges this compressed work gas, still at low temperature, and through a heat exchanger with the ambient temperature, into a work tank or external expansion chamber fitted or not fitted with a heating device, where its temperature and its volume will considerably increase in order to then be preferably let into a relief device providing work and for example comprising an active chamber according to international patent application WO 2005/049968.
摘要:
A method for reducing pollution in a mono-mode air-air combustion engine having an intake and compression chamber, connected to a constant volume expansion chamber, which is connected in turn to an expansion and exhaust chamber. External air is drawn into the intake chamber and compressed to an increased pressure and temperature. The compressed air is transferred to the constant volume expansion chamber, wherein additional, ambient temperature, compressed air is injected therein. The injected air, when contacting the elevated pressure and temperature of the compressed air causes an expansion of the air within the constant volume expansion chamber. The energy associated with the air expansion is transferred to the expansion and exhaust chamber, wherein the continued compressed air expansion produces a work force that is imparted to a piston. The energy depleted air is then exhausted through an exhaust value.
摘要:
The invention concerns a method for additional thermal heating for motor vehicle equipped with pollution-free engine operating with additional compressed air injection into the combustion chamber (2) and having high pressure compressed air storage reservoir (23). The high pressure compressed air contained in the reservoir is previously to its final use at a lower pressure, directed towards a thermal heater (56) to increase its pressure and/or volume before it is injected into the combustion or expension chamber (2). The invention is applicable to all engines equipped with compressed air injection.