摘要:
A method for producing a control valve assembly using a mold comprising an upper mold half (20) and a lower mold half (21). A shaft (11) with premounted bearing blocks (13) or other functional components is placed in the mold, and the control valves subsequently are injection-molded on the shaft (11) in cavities (22) via feeders (23) to produce the control valve assembly. Afterward, the bearing blocks (13) can no longer be detached. Because they are produced separately, the bearing blocks can have a complex geometry. This allows a considerable degree of freedom in the geometric design of the control valve assembly while nevertheless ensuring cost-effective production.
摘要:
A drum controller for use in the induction system of a multi-cylinder internal combustion engine includes an induction distributor and individual induction pipes arranged next to each other and ending in a flange. The controller is arranged in a longitudinal bore hole of the individual induction pipes and is used to pen and close said tubes. The drum controller includes a moveable sleeve and a fixed core. The individual induction pipes are opened or closed when the sleeve is rotated.
摘要:
A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.
摘要:
A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.
摘要:
A switching unit 10 for closing inlet passages 11 in an air intake system having a plurality of inlet passages 11 arranged side by side in an internal combustion engine. The switching unit 10 comprises one switched and one unswitched flow cross section 20 for each cylinder of the internal combustion engine, flap valves 12 and a shaft 27. The switched flow cross sections 20 can be closed and opened by flap valves 12 which are operated with the shaft 27, which is outside of the unswitched flow cross sections.
摘要:
An inertial separator (10) for removing droplets from a gas stream. The inertial separator (10) has a housing (18) which is provided with an inlet (11) for untreated gas and an outlet (12) for treated gas. In the housing (18) are first and second separation lamellae (13), with at least two first separation lamellae (13) being linearly arranged next to one another and separated by an interval A. The separation lamellae (13) each have a concave side (14) and a convex side (15). The first separation lamellae (13) are arranged parallel to the second separation lamellae (13) with the concave sides (14) of the separation lamellae (13) facing one another. The lowest region of the concave side (14) of the first separation lamellae (13) is situated opposite the interval A between the second separation lamellae (13). Viewed in the direction of flow, a drainage slope (16) which extends obliquely to the separation lamellae (13) is arranged on the second separation lamellae (13). This drainage slope (16) projects under the first separation lamellae (13), thereby preventing unpurified gas from exiting through the outlet (12).
摘要:
A fluid feed duct, which may be used for feeding a stream of recirculated exhaust gas into a stream of intake air for an internal combustion engine. The feed duct includes a hollow structure (10) into which a feed connection (12) is introduced via a joint structure (34). A ceramic pipe (16) is used to prevent heat from the exhaust gas stream from being conducted to mounts in the hollow structure (10) which represents the intake duct of the engine. Consequently, the intake duct can be manufactured of a thermoplastic synthetic resin material, since the risk of thermal overstressing is avoided. The feed connection also has a deflecting segment (19) which is provided in its sides with outlet openings (20). This enables the exhaust gas to be introduced in the direction of flow of the intake air, so that optimal mixing is assured and the hot exhaust gas stream is prevented from passing directly to the wall of the thermoplastic intake duct, thereby preventing the intake duct from being melted.
摘要:
An intake manifold (10) for a multi-cylinder internal combustion engine includes a tubular intake distributor (12) from which a plurality of long intake tubes (13) extend and lead to the individual cylinders. Short intake tubes (14) likewise extend from the intake distributor and open into the respective associated long intake tubes (13). The intake distributor (12) and the long and short intake tubes (13, 14) are formed from a one-piece housing (11) which has a cavity (21) which intersects the short intake tubes (14). In this cavity (21) a control element (15) is installed, which includes flaps (16), flap frames (17), a shaft (19) and a control element frame (18). By moving the shaft (19) either rotationally or translationally, the short intake tubes (14) can be opened or closed. In contrast to arrangements known in the prior art, the control element (15) has no sealing elements which can catch or jam during assembly. Additionally, the arrangement of the flaps (16) on a continuous shaft (19) provides a space-saving apparatus.
摘要:
A device for cooling gases in which the gas to be cooled can be fed through channels (5) of a cooling device (1). Adjacent the gas channels (5) in the cooling device (1) are coolant channels (10) for a circulating coolant. In the cooling device, the channels (10) for the coolant are positioned centrally in the interior and the channels (5) for the gas to be cooled are positioned radially outwardly.
摘要:
An air intake system for an internal combustion engine having an air collector into which combustion air is introduced and having at least one intake manifold which branches off from the air collector and which can be connected to the internal combustion engine, in which the intake system additionally includes at least one pressure accumulator which is connected in one piece to the intake system.