摘要:
A method of operating a four-stroke internal combustion engine of the carburator or fuel injection type, with one or several reciprocating pistons or one or several rotary pistons wherein during the intake movement of the one or the several pistons an additional gaseous or liquid or gas-liquid mixture fluid is introduced into the cylinder working space through a cylinder side wall aperture in the vicinity of the piston to establish a layer charge overlying the piston. The introduction of this fluid may be effected by suction effects caused by the piston movement. The amount of fluid supplied may be controlled in dependence upon combustion pressure and/or exhaust gas composition. The internal combustion engine includes an aperture in a cylinder wall in communication with a fluid source whereby this aperture is adapted to be obstructed or exposed by the moving piston to control the admission of the additional fluid. Between the aperture and the fluid source may be provided control valve means.
摘要:
An internal combustion engine having a cylinder block comprising one cylinder or a plurality of cylinders, a piston reciprocable in each cylinder, a crank shaft, a cylinder head with inlet and exhaust valves, inlet and exhaust conduits, an ignition or injection device and valve timing means operatively associated with the cylinder head, fuel supply means in communication with the engine intake side, a feed line for supplying a pressurized or ambient air pressure additional fluid such as a gaseous or a liquid fluid to the cylinders of the engine toward a location upstream of the inlet valve seat(s). The feed line outlet may be formed as a Venturi tube. The feed lines and portions of the intake and exhaust conduits may be incorporated into an intermediate flange member adapted to be mounted on the engine block intermediate the intake/exhaust conduits and respective associated intake/exhaust manifolds. The feed lines may include non-return valve means. The additional fluid may comprise air, starter gas or an emulsion made up of drilling oil and water.
摘要:
An internal combustion engine of the Otto or Diesel type, with one or several cylinders and associated reciprocating pistons in any of the conventional cylinder arrangements. The working space of every cylinder is connected by a bore with a feed line including a valve for introducing into the cylinder during a piston suction stroke an additional fluid such as air or a liquid. The bore/valve assembly may be provided at the cylinder head and/or at the lateral wall of a cylinder. The valve includes a valve chamber of a relatively large cross-sectional area. In the valve chamber is movably guided a valve member for establishing or blocking communication between the valve chamber and the cylinder working space in dependence upon the pressure within the cylinder.
摘要:
A single-piston or multi-piston two-stroke internal combustion engine for introducing into the working space or working spaces of the one cylinder or of the several cylinders respectively a pressurized fluid such as a gas, ambient air or a gaseous mixture or a mixture of a gaseous medium and a liquid at approximately an intermediate height of the cylinder working space between top and bottom dead center positions of the piston head surface for separating inflowing fuel-air mixture from the exiting combustion gases and for establishing a layer charge overlying the piston head. The two-stroke engine is provided with an additional inlet port for admitting this additional pressurized fluid into the cylinder working space, the inlet port being in communication with fluid supply means and optionally including an automatically pressure operated or positively actuated control member.
摘要:
A two-stroke combustion engine with intake and exhaust ports which are indirectly or directly controllable in accordance with the reciprocating motion of a working piston in a cylinder space, wherein at one side of the piston there is a working chamber accessible to an ignition device and connectible to an outlet, and at the other side of the piston there is a compression chamber, and wherein there is associated with the working piston at least a second auxiliary piston functioning as a compression piston, which operates in a compression chamber at least in a single acting mode.
摘要:
A two-stroke combustion engine with intake and exhaust ports which are indirectly or directly controllable in accordance with the reciprocating motion of a working piston in a cylinder space, wherein at one side of the piston there is a working chamber accessible to an ignition device and connectible to an outlet, and at the other side of the piston there is a compression chamber, and wherein there is associated with the working piston at least a second auxiliary piston functioning as a compression piston, which operates in a compression chamber at least in a single acting mode.
摘要:
An internal combustion engine installation with a carburetor of any of various conventional carburetor types having at least one main jet, optionally a slow running jet, as well as a throttle member controlled by an accelerator lever or pedal wherein are provided valve means for interrupting the fuel supply by blocking the one or several carburetor jets in response to a predetermined rotational speed of the engine or a predetermined degree of vacuum in the intake manifold, and optionally a return or release movement of the accelerator lever or pedal to prevent unnecessary fuel consumption and to reduce the amount of pollutants in the exhaust gases.