摘要:
The present invention relates to a kit for an LPG fuel for petrol run engines and in particular, a kit of electronic and hydraulic components for the realization of a dual fuelling LPG/petrol system (100) particularly suitable for outboard engines of boats navigating in waters with high salt content. Said kit includes a tube-bundle heat exchanger (10) and a pressure regulator (20) separated one from the other and made of antioxidant materials and devices. The heat exchanger (10) is provided at its end with two respective sacrificial anodes (12b, 11b) for the protection from corrosive galvanic currents and with one temperature sensor (11c) placed at one of said ends. The kit also includes a plurality of electrohydraulic LPG injectors (I) and an electronic control unit (CE) set to manage and adjust the operation of such injectors (I), of the pressure regulator (20) and of a plurality of other devices. Said kit also includes an electronic commutator (SW) set for a bilateral electrical connection with the electronic control unit (CE) and includes a switch for the commutation from one feeding mode (LPG) to another feeding mode (petrol) and vice versa.
摘要:
The invention relates to a method for operating a dual-fuel internal combustion engine 100, having - an intake section 30 and an engine 10 with a number of cylinders Ai, Bi, wherein, in the method - the engine 10 is operated with diesel or another liquid fuel in a first operating state in diesel operation DB and is operated with gas BG as fuel in a charge mixture in a second operating state in gas operation ZB, and - is switched over between the diesel operation DB and the gas operation ZB in a switchover range which is defined, in particular predefined, by switchover operating parameters.
摘要:
A fuel system (10) is proposed for an internal combustion engine (12) which can be operated with at least two fuel types (16, 40), wherein the fuel system (10) comprises an electrically driven high-pressure fuel pump (48) for at least one of the two fuel types (16, 40), which high-pressure fuel pump (48) is connected on the output side to a high-pressure line (30) which is common to the two fuel types (16, 40).
摘要:
La présente invention concerne un procédé de contrôle de la combustion d'un moteur à combustion interne à injection directe de carburant liquide à allumage commandé, dans lequel le moteur comprend au moins un cylindre (12) avec une chambre de combustion (14), au moins un moyen d'admission (16), au moins un moyen d'échappement (22), et au moins un moyen d'injection directe (34) de carburant liquide pour réaliser un mélange carburé dans la chambre de combustion. Selon l'invention, le procédé consiste : - à déterminer la zone de fonctionnement du moteur dans laquelle sont émises des particules lors de la combustion du mélange carburé, - pour un fonctionnement du moteur dans cette zone déterminée, à introduire dans la chambre de combustion, un autre mélange carburé résultant d'une injection indirecte d'un carburant gazeux.
摘要:
Methods for controlling an injection process of an engine that is configured to operate with multiple types of fuels are disclosed. The methods may comprise the steps of receiving (40) a fuel amount request indicating a requested amount of fuel to be delivered, receiving at least one physical parameter indicating the type of fuel provided to operate the engine, providing a map comprising a control parameter in dependence of the physical parameter, reading the control parameter associated with the received physical parameter, determining an injection parameter (46) for the injection process based on the control parameter and the requested amount of fuel, and operating (48) the engine based on the injection parameter.
摘要:
Methods are described for operating a two-stroke cycle, compression-ignition, opposed-piston engine using a self-igniting, low reactivity fuel which manages trapped temperature and trapped combustion residue within the combustion chambers of the engine, thereby ensuring fuel ignition timed to avoid misfires at low loads and pre-ignition (knocks) at high loads.
摘要:
When a load on an engine is higher than a predetermined load L3, an engine device 21 brings the opening degree of a main throttle valve V1 to a fully-open opening degree. Further, the engine device 21 performs feedback control on an air supply bypass valve V2 and performs map control on an exhaust bypass valve V3 referring to data table DT2 to allow pressure inside an intake manifold 67 to be adjusted to a target value appropriated to the load.
摘要:
The present invention has been made in view of the above-mentioned problems, and is intended to carry out ignition to a mixture in a more stable manner in a multi-fuel internal combustion engine. In the control apparatus for a multi-fuel internal combustion engine which is able to be operated by mixed combustion of a plurality of kinds of fuels, a mixing ratio of the plurality of kinds of fuels is controlled by a mixing ratio control unit, and ignition timing of a spark plug is controlled by an ignition timing control unit, in such manner that a required discharge voltage is made equal to or less than a voltage which is lower by a fixed value than a voltage to be applied to said spark plug (S104, S108).