摘要:
Dieses Verfahren ermöglicht, im drucktechnischen Bereich des Kernreaktorbaus, wo hohe Sicherheitsstufen verlangt werden, Armaturen, wie Schieber, von bis etwa 1000 mm Nennweiten zu verwenden, und zwar durch Herstellung des Schiebergehäuses (1) aus schmiedbarem Stahl. Der warme Block wird zuerst in einer Matrize zu einem einseitig offenen, rohrförmigen Ausgangskörper nahtlos verformt. Am offenen Ende wird dann eine Materialverdickung (6) aufgestaucht, um dort einen zylindrischen Teil (39) mit größerem Durchmesser herzustellen. Der darunterliegende Teil wird abgeflacht, so daß zwei parallele Wände (23) entstehen. Diese sind mit je einer zueinander koaxialen Durchbrechung versehen, die durch Kragen (10, 11) von Gehäuserohrstutzen (8, 9) verschlossen werden. Am Kragenumfang erfolgt die Verschweißung (12, 13) der Stutzen (8, 9) mit dem Gehäuse (1). Die symmetrisch in das Gehäuseinnere ragenden Stutzenenden (14, 15) bilden die Dichtungsflächen (16, 17) für den Absperrkörper (3). Dank der Gehäuseabflachung und der dadurch bedingten guten Zugänglichkeit der Schweißnähte (12, 13) können diese auch während des Betriebes durch Ultraschall- und Röntgengeräte geprüft werden.
摘要:
Certain aspects of the present invention are directed to a distributed inflow control device that can be disposed in a wellbore through a fluid-producing formation. The distributed inflow control includes a shroud that can be disposed in the fluid-producing formation. The shroud circumferentially covers a section of a tubing string. The shroud includes a profile having multiple flow paths between the fluid-producing formation and an inner volume of the section of the tubing string. Each flow path restricts a fluid flow through the flow path and is independent of each other flow path. The distributed inflow control device also includes a seal over the profile including the flow paths. The seal causes fluid to flow from an inlet to an outlet of each flow path and prevents fluid from entering or exiting each flow path at a point other than the respective inlet or the respective outlet.
摘要:
A liquid injector for injection of liquids into internal combustion engines is provided. The injectors have a plurality of jets aimed at a common collision point, where at least two jet streams collide to create a finely atomized liquid due to kinetic energy dissipated by the impact of the liquid streams. The angle formed by the jets, the pressure applied and the distance at which the jets collide is such that the loss of forward momentum is greater than the energy required to create particles smaller than 5 microns. Liquids injected may include gasoline, diesel-type fuels, or water. The injectors may be employed for port injection or direct injection.
摘要:
The invention relates to a method for joining a first housing component (2) to a second housing component (3) by means of welding, the first housing component (2) and the second housing component (3) being respectively formed as hollow bodies with a closed hollow cross-section. The form of the hollow cross-section of the second component (3) corresponds to the form of the hollow cross-section of the first component (2). Said method comprises the following steps: the first housing component (2) with an inner dimension (II) is provided; the second housing component (3) with an outer dimension (A2) is provided, the outer dimension (A2) of the second housing component (2) being smaller than the inner dimension (II) of the first housing component (2); and the second housing component (3) is arranged in the first housing component (2) such that a peripheral gap (6) is formed between an inner wall of the first housing component (2) and an outer wall of the second housing component (3), the region of the gap between the two housing components (2, 3) being a joining region (4). The first housing component (2) is welded to the second housing component (3) in the region of the gap (6) between the first and second housing components (2, 3). The invention also relates to a housing for an injection valve which is produced by said method.
摘要:
The invention relates to a method for producing a solid housing, in particular a valve housing for an electromagnetic actuatable valve. Said invention is characterised in that the method comprises the following steps: a) a strip of sheet metal (60), which is made of a magnetic and/or magnetisable material, is prepared b) an additional material is introduced into the central area of the strip of sheet metal (60) and is melted there in order to form a non-magnetisable structure, c) the strip of sheet metal (60) is cut to a desired width in order to form a desired piece of sheet metal, d) the piece of sheet metal is deformed into the shape of a sleeve, e) the now opposing section edges, which extend in the longitudinal direction of the sleeve in order to form a sleeve blank, are mutally fastened, f) the sleeve blank is finally machined until the desired dimensions of the housing (66) are obtained. The housing (66) is particularly suited for use in fuel injection valves in fuel injection systems of mixture-compressing spark-ignition combustion engines.
摘要:
A lid configured for use with a fluid container includes a body member and a valve. The body member includes a central body that extends to an outer periphery configured to couple to a rim of a fluid container. The body member defines an aperture therethrough and has top and bottom surfaces. The valve has a first portion directly secured to the bottom surface and a second portion that extends from the first portion. The second portion includes a protuberance and is movable relative to the first portion between free and depressed states in response to deflection of at least a portion of the central body relative to the outer periphery. The protuberance is configured for sealed engagement with the aperture while the second portion is in the free state and is spaced from the aperture while the second portion is in the depressed state.
摘要:
A liquid injector for injection of liquids into internal combustion engines is provided. The injectors have a plurality of jets aimed at a common collision point, where at least two jet streams collide to create a finely atomized liquid due to kinetic energy dissipated by the impact of the liquid streams. The angle formed by the jets, the pressure applied and the distance at which the jets collide is such that the loss of forward momentum is greater than the energy required to create particles smaller than 5 microns. Liquids injected may include gasoline, diesel-type fuels, or water. The injectors may be employed for port injection or direct injection.