Abstract:
An apparatus for measuring temperature comprises a housing and an actuator pressure sealed to the housing and having a shaft. The actuator is configured to be in pressure communication with a volume of gas or liquid. Upon a change in pressure, the actuator is displaced at least partially in the axial direction. A sensor detects axial displacement of a magnetically encoded target upon the change in pressure in the volume. A device for measuring pressure and temperature in an engine cylinder comprises a valve in pressure communication with an engine cylinder. The valve stem has a magnetic coding located adjacent a sensor. Axial displacement of the stem under cylinder pressure and temperature changes are detected.
Abstract:
A poppet valve assembly is disclosed for use in an internal combustion engine which includes a valve stem (12) having an axis and a valve head (13) mounted at one end thereof and wherein the stem is inclined relative to the front face of the valve head. A valve guide (14) is provided for receiving the stem (12) for axial movement of the stem. The stem (12) and the guide (14) have cooperating formations (25, 26) for causing rotational movement of the stem (12) and, hence, the head (14) during axial movement of the stem.
Abstract:
A method of operating an internal combustion engine includes moving an exhaust valve to a first open position to enable an exhaust product to flow through an exhaust port of the internal combustion engine. The method also includes maintaining the exhaust valve at the first open position for a predetermined time period. The method also includes moving an intake valve to a second open position during the predetermined time period to enable an intake product to flow through an intake port of the internal combustion engine. Additionally, the method includes preventing at least a portion of the intake product from flowing through the exhaust port during the predetermined time period with a first blocking member and a second blocking member.
Abstract:
Mit Verdichtern hoch-aufgeladener, umweltfreundlicher Zweitakt-Verbrennungsmotor, dadurch gekennzeichnet, dass der pneumatische Ventiltrieb aus wenigen und geometrisch einfachen Einzelteilen besteht und der mit vielen Schlitzen versehene Zylinderkopf von innen zum größten Teil mit einem Membran-Einlassventil zum Aufbau des Luftdrucks bedeckt ist.
Abstract:
The invention relates to a piston engine comprising at least one cylinder (1 2), and a cylinder head (1 6) arranged in connection with the cylinder provided with at least one inlet valve (1 8) and at least one exhaust valve (20), a piston (14) arranged in the cylinder movably between its top dead center (TDC) and bottom dead center (BDC), in which the piston (14) is provided bowl (142) provided with rotationally symmetrical top surface in respect of the longitudinal axis thereof. The bowl (142) comprises a middle region (143), and radially after the middle region a conical region (144) extending radially towards the periphery of the piston at an angle (D) such that the depth of the bowl increases towards the periphery of the piston (14) and that the valves provided with a bottom surface comprising an extension (1 81, 201 ) which extends from a plane formed be the rim of the valve edge (1 82) to a direction opposite to the stem of the valve.
Abstract:
A modification of the-two-cycle engine with the installation of combined valve with a piston (1 and 2) completely washes away the cylinder, helps the suction of the air-fuel mixture from the crankshaft housing, there is no releasing of unburned gases and a part of the air-fuel mixture and with the application of a programmed electronic injection of the lubrication oil, this engine is suitable for powering of trucks, locomotives and ships, where engine with low RPM is used.
Abstract:
A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve.
Abstract:
An engine has a crankshaft. A compression piston within a compression cylinder is connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke. An expansion piston within an expansion cylinder is connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and an exhaust stroke. A crossover passage interconnects the compression and expansion cylinders. The crossover passage includes a crossover compression valve and a crossover expansion valve. A runner section is in a downstream portion of the crossover passage, and a helical end section is integrally connected to the runner section. The helical end section has a funnel spiraling about a valve stem of the crossover expansion valve. The funnel forces incoming air to rotate about the valve stem prior to entering the expansion cylinder to promote turbulent kinetic energy in the cylinder air/fuel charge.