Abstract:
본 발명은 가변 밸브 개구 횡단면을 갖는 밸브 장치에 관한 것으로, 상기 밸브 장치는 내연기관의 유출개구에 배치되고 밸브 스프링력에 의해 작동되고, 가이드 소자 내부에서 밸브제어 유닛에 의해 축방향으로 왕복 운동할 수 있는 가스 교환 밸브를 구비하며, 가이드 내부에서 밸브 조절유닛에 의해 왕복 운동 가능하다. 밀봉 슬라이드(10)는 가스 교환 밸브(24)에 대해 축방항으로 배치되고, 상기 밀봉 슬라이드는 커플러 스프링(24)력에 의해 작동되고 밸브 제어 유닛에 의해 축방향으로 왕복 운동할 수 있다. 밀봉 슬라이드(10)의 위치는 가스 교환 밸브(24)에 대해 상대적으로 축방향으로 조절유닛에 의해 변경 가능하다.
Abstract:
The invention relates to a valve arrangement for supplying air to an internal combustion engine. The valve arrangement comprises a first valve and a second valve arranged within the first valve. The invention also relates to a valve guide for use in a valve arrangement.
Abstract:
An internal combustion engine (10) includes at least one cylinder (12) having a piston, and a cylinder head containing an inlet duct (3) incorporating an inlet valve 1 to allow flow in only one direction and an exhaust duct incorporating no mechanical flow restricting device and at least one chamber valve (2) through which both inlet and exhaust fluids pass from the ducts (3,4) into and out of the cylinder (12), and a combustion chamber (6) in the cylinder (12) that allows the chamber valve (2) to be significantly open when the piston (5) is at top dead centre enabling a transfer of fluid, fluid flow pressure and pressure waves between the cylinder, and the inlet (3) and exhaust ducts (4).
Abstract:
A four-stroke piston internal combustion engine is constructed in classic form and comprises a cylinder 1 with a piston 2, and an intake disc compression valve 3 and a discharge disc compression valve 4, which valves are arranged in the cylinder and are actuated by the cams 5 of a camshaft 6. The piston 1 rotates a crankshaft 8 via a connecting rod 7. The special characteristic is the very early start of opening of the intake valve 3, well before the upper dead centre of the discharge stroke (40° and above). A valve flap 11 is mounted in front of the intake valve 3 in the intake conduit, said valve flap being raised and lowered by an electromagnet (EMZ 11 below) upon commands from a complex control system 12. Said system also controls a spark plug 13 and an injector 14. The opening and closing phases of the intake valve 3 are selected to be of maximum width to ensure maximum charging at high revolutions and are not adjusted. The engine is controlled (the charging changed) with the aid of the EMZ, which is also charged with the operation of the system for changing the gas distribution phases. The electric power for controlling the EMZ is insignificant (about 20 watts).
Abstract:
Поршневой четырехтактный двигатель внутреннего сгорания выполнен по классической схеме и включает цилиндр 1 с поршнем 2, впускной 3 и выпускной 4 тарельчатые компрессионные клапаны, которые расположены в цилиндре и приводятся кулачками 5 распредвала 6. Поршень 1 через шатун 7 вращает коленчатый вал 8. Особенностью является очень раннее начало открытия впускного клапана 3, задолго до верхней мертвой точки такта выпуска (40° и более) Перед впускным клапаном 3 во впускном трубопроводе установлен клапан- заслонка 1 1, которая поднимается и опускается электромагнитом (далее ЭМ31 1) по командам комплексной системы управления 12. Эта же система управляет свечой 13 и форсункой 14. Фазы открытия и закрытия впускного клапана 3 выбраны максимально, широкими для обеспечния максимального заряда на высоких оборотах и не регулироуются. Управление двигателем (изменение заряда) осуществляется с помощью ЭМЗ, на нее же возложены функции системы изменения фаз газораспределения. Электрическая мощность для управления ЭМЗ незначительна (около 20 Вт).
Abstract:
Dual fuel compression ignition engines and methods that allow compression ignition on gaseous fuels like compressed natural gas, hydrogen and ammonia, yet will run on liquid fuels, including diesel fuels for such purposes as starting or when the gaseous fuel is not available or has been consumed and greater range or operating time is needed. Ignition of fuels having a high self ignition temperature is assured by recirculating high temperature exhaust gas back into the intake charge before compression. Existing engines may be converted to run as a dual fuel engine by replacement of the engine head or heads. Various embodiments are disclosed.
Abstract:
Die Erfindung betrifft einem Ventilmechanismus mit einem variablen Ventilöffnungsquerschnitt, wobei der Ventilmechanismus an einer Durchlassöffnung einer Verbrennungskraftmaschine angeordnet ist und ein Gaswechselventil aufweist, das von der Kraft einer Ventilfeder beaufschlagt und innerhalb einer Führung über eine Ventilsteuereinheit in axialer Richtung hin- und hergehend verschiebbar ist. Es ist vorgesehen, dass koaxial zum Gaswechselventil (12) ein Dichtschieber (10) angeordnet ist, der von der Kraft einer Koppelfeder (24) beaufschlagt und durch die Ventilsteuereinheit in axialer Richtung hin-und hergehend verschiebbar ist. Die Position des Dichtschiebers (10) ist relativ zum Gaswechselventil (12) in axialer Richtung durch eine Verstelleinheit veränderbar. (Figur 3)
Abstract:
An internal combustion engine, wherein an intake valve (9) for opening and closing an intake valve hole (7) formed in a cylinder head so as to face a combustion chamber (5) is formed hollow, an exhaust valve hole (22) formed in the intake valve (9) is opened and closed by an exhaust valve (18) stored coaxially inside the intake valve (9), the intake valve hole (7) facing the combustion chamber (5) communicates directly with an intake port (8) and the exhaust valve hole (22) facing the combustion chamber (5) communicates with an exhaust port (14) through an exhaust gas passage (21) formed inside the hollow intake valve (9), whereby the intake air charging efficiency can be increased by largely assuring the opening area of the intake valve (9), and the lowering of temperature of the exhaust gas can be minimized to effectively use waste heat since the exhaust gas just after leaving the combustion chamber (5) is not brought into direct contact with the cylinder head (3) having a large heat capacity.
Abstract:
The present invention relates to a new gas distributor for an internal combustion engine that essentially comprises a mobile gas-distribution plunger, an inlet valve mounted in conjunction with a mechanism for adjusting the position thereof, as well as a fuel pump mounted together with the inlet valve and operating according to pressure of the air compressed in the cylinder. It is thus possible to simplify the realisation process, to reduce the production costs as well as the amount of metal used and the noise during the operation, and to improve the reliability as well as the economical features of the engine.
Abstract:
A valve control arrangement for internal combustion engines in which a hydraulic valve actuator with integral fluid reservoir is interactive with two camshafts (110, 120) to continuously and independently vary the valve duration. A modified intake system is provided to increase the effective area of the valves.