摘要:
An atomizer nozzle (1) for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body (2) containing spray-discharge orifices (3) that discharge into a metering space, and has at least one metering aperture (6). The spray-discharge orifices (3) are situated at elevation levels (4) so as to have a radial directional component with respect to a center line (10) of the nozzle body (2), each elevation step having at least one spray-discharge orifice (3), and the spray-discharge orifices (3) of at least one elevation level (4) being connected to at least one channel (14) of a nozzle-body insert (5) that has at least one flow-through opening (11).
摘要:
An atomizer nozzle for fuels, particularly for charging a chemical reformer for obtaining hydrogen, features a nozzle body, having spray-discharge orifices discharging into a metering space, and at least one metering aperture, The spray-discharge orifices are situated with a radial directional component with respect to a center axis of the nozzle body at elevation levels, each elevation level having at least one spray-discharge orifice. At least one nozzle body insert, having at least one flow-through opening, is situated in the nozzle body in front of the first elevation step in the direction of fuel flow and/or between the elevation steps.
摘要:
An atomizer nozzle for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body containing spray-discharge orifices that discharge into a metering space, and has at least one metering aperture. The spray-discharge orifices are situated at elevation levels so as to have a radial directional component with respect to a center line of the nozzle body, each elevation step having at least one spray-discharge orifice, and the spray-discharge orifices of at least one elevation level being connected to at least one channel of a nozzle-body insert that has at least one flow-through opening.
摘要:
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, having an inflow nipple for the connection to a fuel-distributor line, a nozzle body disposed downstream from the inflow nipple, a magnetic circuit element, which includes a solenoid coil an inner pole, and an outer pole, as well as an armature, which is in force-locking connection with a valve needle such that a valve-closure element disposed at the valve needle lifts off from a valve-seat surface when solenoid coil is energized, the inflow nipple and the nozzle body being produced as deep-drawn components, and the inflow nipple and the nozzle body being fixed in place on the magnetic circuit element.
摘要:
A fuel supply system of an internal combustion engine that has fuel injection is described. The fuel supply system has a fuel rail, from which injectors are supplied with fuel via valve seats. The damper element has an elastic tubular body arranged in the fuel rail. The tubular body sealingly separating an inner fuel chamber, through which fuel flows, from an outer fuel chamber, through which fuel flows and which is connected to the valve seats. Walls of the tubular body are made of an elastic material. The elastic tubular body is arranged upstream of a pressure regulator.
摘要:
A liquid filter (10) with a built-in pressure regulator (11) for fuel is proposed, wherein the pressure regulator (11) with its diaphragm (41) is built on the housing (12) on a component (18) on the front with at least one connection (19). The disk-shaped diaphragm (41) has a single clamping site (39) on its external circumference and a centrally arranged movable closure closure member (42). The diaphragm (41) is acted upon by pressure in a pressure chamber (45) connected with the clean side against the force of a spring (49) in a gas-filled spring chamber (48). The integration of the pressure regulator (11) in the housing (12) permits a simple, compact, cost-effective construction of the liquid filter (10), through whose valve (44) in the pressure regulator (11) only cleaned fuel flows and which is insensitive to backpressure in the tank connection (17).
摘要:
The present invention relates to a pressure damper for a pressure vessel, in particular for a fuel distributor for an internal combustion engine, with a damper bellows that is connected to a sealing cap for closing an opening of the pressure vessel. In order to obtain a pressure damper that can be installed as easily as possible and can be manufactured as inexpensively as possible, the provision is made according to the invention that the sealing cap is embodied of one piece as a deep-draw part made of metal.
摘要:
The device has a feed pump arranged in the supply tank (12), which can be inserted through an opening (20) in the supply tank (12). The opening (20) is closed by means of a closure element (22) on which a pressure regulator is disposed, which is connected with the pressure side of the feed pump and with the internal combustion engine, and which can be connected with a relief chamber (12). The closure element (22) has a base body (30) made of plastic, in which a depression (40) has been formed, which is closed by means of an elastic diaphragm (52), so that a pressure chamber is formed. A connector (45) projects into the depression (40), which is connected with the relief chamber (12) and whose front end (51) can be closed by means of a flattened ball (74), which is movably seated in a support element (70) connected with the diaphragm (52). The diaphragm (52) is clamped between a retaining element (54) and the base body (30), and the ball (74) is pressed with its flattened area (75) against the front end (51) of the connector (45) by means of a pre-stressed spring (60) acting on the diaphragm (52). When a defined pressure is exceeded in the pressure chamber, the diaphragm (52) is lifted and the ball (74) clears the connector (45) and fuel can flow out of the pressure chamber.
摘要:
A control unit (50) makes a single control signal available for driving the through-flow control valves (TEV1, TEV2) (51, 52). Through-flow valve (TEV2) has a larger maximum through flow than through-flow control valve (TEV1). A delay circuit is indicated by the phantom outline (52′) and is mounted at the valve stage TEV2 (52). The delay circuit includes an electric delay element (53) with the aid of which the original control signal is delayed in time by an amount &Dgr;t1 relative to the control signal of control valve (TEV1). The resulting delayed signal is supplied to an AND-gate (54) together with the original control signal. Accordingly, a control signal is present at the output of the AND-gate for the control valve (TEV2). The time delay makes possible the exclusive activation of the through-flow control valve (TEV1) (51) at low pulse duty factors. In this way, a high small quantity meterability is achieved. Starting at a specific pregivable switch-in time, the control valve (TEV2) (52) is switched in so that a very large through flow is possible. The invention thereby makes possible excellent meterability at low as well as at high through flows.
摘要:
A liquid filter (1) with a built-in pressure regulator (11) for fuel is proposed, in which the pressure regulator (11) with its diaphragm (32) is mounted on the inside of a cap (14) that has the inflow connector (16) and the tank connector (17). The diaphragm (32), which experiences a flow on its inside, is acted upon by the pressure of the fuel on the clean side (25) of the filter element (21), and the flow through the filter element is radially from the outside inward. Integrating the pressure regulator (11) in the cap enables a simple, compact, economical design of the liquid filter (10), through whose valve (36) in the pressure regulator (11) only cleaned fuel flows.