Abstract:
A port injection valve injects fuel to an intake passage. In multiple injection processing, a demanded injection quantity of the fuel is divided into a synchronous injection quantity and a non-synchronous injection quantity in accordance with at least one of: the load, which is a physical quantity having a correlation with the amount of air to be filled; and the temperature of an internal-combustion engine. The fuel is injected through intake non-synchronous injection and intake synchronous injection in this order. In the intake synchronous injection, the fuel is injected synchronously with a valve-open period of an intake valve. In the intake non-synchronous injection, the fuel is injected at a timing more advanced than in the intake synchronous injection.
Abstract:
A device and corresponding methods for applying a coating material are disclosed. The method may include applying a first coating material on a threaded region of an opening in a multi-piece assembly, and inserting at least one fastener to the threaded region. The fastener may include a mating thread selectively secured to the threaded region of the opening to create a first friction interface between the fastener and the multi-piece assembly. The method may further include tensioning the fastener between a load surface of the multi-piece assembly and the mating thread. In one example, the load surface may define in part a second friction interface between the fastener and the multi-piece assembly that is spaced away from the threaded region such that the first coating material does not influence the second friction interface. In another example, the first coating material may be applied in a substantially uniform thickness.
Abstract:
A method and a system for providing vacuum via an engine are described. In one example, introduction of a gaseous fuel is ceased in response to a request for the engine to provide vacuum to a vehicle vacuum system.
Abstract:
The disclosure relates to heat engines that operate using low temperature differentials. A Stirling engine is modified to provide a new heat engine that has no contained working fluid. The new heat engine flexible cylinders and the pistons are moved vertically upward by cables and vertically downward by gravity.
Abstract:
A dual injection type internal combustion engine including an injector for in-cylinder injection and an injector for intake manifold injection includes a learning device for learning a background noise level based on an output signal of a knock sensor, and a knocking suppression control device for performing, while learning the background noise level, knocking suppression control by controlling fuel injection of the injector for in-cylinder injection or the injector for intake manifold injection. Alternatively, the engine includes a fixing device for fixing, while learning the background noise level, a start timing or end timing of fuel injection by the injector for in-cylinder injection at a basic timing determined by an operating state of the engine.
Abstract:
A microwave combustion system is presented that can replace the conventional spark plug in an internal combustion engine. One or more microwave pulses are provided to a microwave feed in a plug that sits in the cylinder. A microwave generated plasma generated by the plug in the vicinity of a fuel mixture can provide for highly efficient combustion of the fuel-air mixture.
Abstract:
Heat differential power systems and apparatus for powering liquid cooling systems and/or generating electrical power in a data processing system or a telecommunication system are presented. A number of embodiments are presented. In each embodiment a heat differential power system is implemented which utilizes the heat created a heat-generating component such as a microprocessor within the data processing or telecommunications system and the resulting heat differential created with other parts of the system as power to operate the heat differential power system and convert thermal energy into mechanical and/or electrical energy for powering a liquid cooling system, fans, other electrical components, and/or extending the battery life in a portable data processing or telecommunications system.
Abstract:
A process, device and system are provided for utilizing waste heat from a waste heat source, especially from an internal combustion engine, by a coolant being heated and by this heat being used to drive a turbine. The device utilizes waste heat with a waste heat source (10, 20) cooled by a coolant, with a turbine (11) and with an evaporating device (16) for the coolant. To increase the efficiency of such a process and such a device and system, and to reduce the design effort and the maintenance effort, the coolant is evaporated after it leaves the waste heat source (10, 20) and the evaporating means is provided after the waste heat source (10, 20) when viewed in the direction of flow of the coolant.
Abstract:
A method of operating an internal combustion engine employs exhaust gas recirculation (EGR) in combination with directly injected gaseous fuels that are burned within the engine in a stratified combustion mode. An engine that employs EGR includes an injector adapted to provide a high pressure quantity of fuel into a combustion chamber within a given pressure range, at a given angle and through a nozzle hole size to help provide for EGR tolerance and, consequently, reduce emissions.
Abstract:
A turbo-charged internal combustion cylinder assembly includes a combustion chamber which may be communicably connected to a compressor via an intake port through an intake manifold and aftercooler so the compressor may provide pre-combustion gases to the combustion chamber when the intake valve is open. An exhaust port communicably connects the combustion chamber to an exhaust manifold. An exhaust valve may open to exhaust post-combustion gases to the exhaust manifold while an intake valve is substantially closed, and the exhaust valve may open to admit post-combustion gases to the combustion chamber while the intake valve is substantially open and an exhaust port pressure in the exhaust port is higher than a combustion chamber pressure in the combustion chamber. A fuel injector may admit fuel to the combustion chamber. A spill valve may control a rate of fuel injection to the combustion chamber, the spill valve having a first position providing a maximum fuel injection rate, a second position providing a substantially zero fuel injection rate, and at least one intermediate position providing an intermediate fuel injection rate between the maximum fuel injection rate and the zero fuel injection rate.