Abstract: A switching assembly (10) having closure elements such as switch valves (18), for example, for closing intake lines (24b) and an intake manifold (28) in which the switching assembly is installed. The switching assembly (10) advantageously is composed of assembly injection-molded valve modules including switch valves (18) and a frame (14b). Alternatively, the switch valves (18) may also be injection molded directly in place in the support component (17). Because it may be pre-assembled, the entire switching assembly (10) may be easily installed in the intake manifold. In addition, the switching assembly preferably has rotational axes (15) which lie at a right angle to the alignment of the valves. It is advantageous that each switch valve (18) has its own rotational axis, thereby avoiding additive tolerances. In this way a part is provided which is economical to produce and which satisfies the sealing requirements for the switching assembly.

Abstract: A liquid filter for removing contaminants from liquids such as lubricating oil, water or fuel, comprising a filter housing (10), a filter element (15), a support body (16) and a slide valve (17), which, when closed, prevents liquid from flowing from an unfiltered liquid area or from a filtered liquid area to a filter outlet (24). When the filter housing is opened, the slide valve moves axially and opens the filter outlet (24) so that the filter housing can empty. The slide valve (17) is detachably snapped together with the support body (16), which in turn is connected to a housing cover (12). This enables the slide valve to be detached from the support body, and reduces the level of maintenance required by the liquid filter.

Abstract: An intake device (1) for an internal combustion engine including a main body (2) and cover element (3; 20) which are securely connected to one another. Main body (2) and cover element (3) form intake pipes (4, 5, 6, 7) of in intake manifold. The cover element (3; 20) includes a plurality of individual shells (14, 15, 16, 17; 24, 25, 26, 27), which are connected to one another. Each individual shell (14, 15, 16, 17; 24, 25, 26, 27) forms a wall section of a respective intake pipe (4, 5, 6, 7) of the intake device (1). A flexible connection element (22) is arranged between two successively adjacent individual shells (25, 26) to compensate for tolerances between the cover element (3) and the main body (2).

Abstract: A filter device having a filter element arranged in a filter housing with a housing port closed by a housing cover with a housing ring. A medium to be purified is supplied to the filter element through an inlet in the filter housing. On the discharge side of the filter element, purified medium is discharged through an outlet in the filter housing. A pressure relief valve is integrated into the housing cover and is subjected to the pressure on the inlet side of the filter element. The housing cover is constructed in two parts and includes an inside cover and an outside cover. The pressure relief valve is mounted in the inside cover, which closes the housing port. A discharge path for discharging medium exhausted from the filter housing through the pressure relief valve is formed between the inside cover and the outside cover.

Abstract: An air filtration system for purifying an air stream, such as the intake air for an internal combustion engine, including a system plate (10), an unfiltered air zone (13), a filter housing (12) containing a filter element (16), and a filtered air zone (19). The filter element hermetically seals and separates the unfiltered air zone (13) from the filtered air zone. The unfiltered air zone (13) is configured by a first half shell (11), which is connected to the system plate (10) in a fixed, hermetically sealed manner. The filter housing (12) is also connected to the system plate in a fixed and sealed manner. The permanent, air-tight connection of the first half shell to the system plate allows the air filtration system to be manufactured in a simpler, more rapid and more cost effective manner by obviating the need for seals and connecting elements, as well as the need to assemble such parts.

Abstract: A mounting arrangement for an intake manifold and a method of making same. The mounting arrangement includes an adapter plate attached to a cylinder head of an engine. The adapter plate has at least one aperture having a smooth inner surface. The intake manifold includes at least one inlet pipe and is mounted to the adapter plate by arranging the at least one inlet pipe in the at least one aperture of the adapter plate. A securing mechanism is arranged between the at least one inlet pipe and the smooth inner surface of the at least one aperture. The mounting arrangement of the present invention substantially isolates the intake manifold from vibrations caused by the operation of the engine, which in the past have been transmitted to the intake manifold by way of mounting flanges.

Abstract: An intake device for supplying combustion air to an internal combustion engine composed of two sealingly connected half shells (10, 11) which form an intake air plenum (13), intake ducts (14), and a cylinder head flange (15) in which there is an insert (20) associated with each intake duct (14). Each insert is provided with a partition (23) for dividing the flow into two flow cross-sections (21, 22). The first flow cross section (21) is provided with a valve flap (24), which can be opened and closed to influence the filling of combustion chambers of the internal combustion engine.

Abstract: A liquid filter is described, which comprises a housing, a cover to seal said housing, a filter element arranged in said housing, and a supporting body for the filter element connected to the cover. The housing has an inflow opening for the liquid to be filtered as well as an outlet opening for the filtered liquid, and a drain opening for the liquid, which is sealed during normal operation of the filter element. For maintenance, this drain opening is opened so that all the liquid inside the housing can drain off. The drain opening is sealed by means of an element, which can be actuated by the supporting body for the filter element.

Abstract: A combined air intake manifold and fuel delivery rail for an internal combustion engine which decreases manufacturing and assembly costs, as well as the weight of the engine. An air channel formed in a hollow portion of the manifold registers with air intake ports in the engine head which lead to the individual cylinders of the engine. An elongated recess in the underside of a mounting flange forms a fuel supply channel which communicates with fuel inlet openings in the engine head leading to fuel injectors for the engine cylinders. Seals may be provided between the manifold and the engine head to seal the air channel and the fuel supply channel.

Abstract: A centrifugal separator (10) for an engine includes a rotor (30) mounted within a housing (12, 14) for rotation on hollow spindle (42) to the end of which oil is supplied at high pressure to enter the rotor. To prevent the rotor from flying from the base and oil spraying if the cover (14) is removed without shutting off the oil supply via optional valve (80), a rotor restraint (90) is provided in the form of a ring (91) which surrounds and overlies a flange of the rotor. The ring may be complete or discontinuous and may also include an interlock to prevent attachment of the cover and/or supply of oil if the ring is not in place.

Abstract: A filter device, especially for filtering the intake air of an internal combustion engine, which includes a housing with an unfiltered air inlet and a clean air outlet, and a substantially cylindrical, replaceable filter insert disposed in the housing, which separates an unfiltered air zone within the housing from a clean air zone. An axial seal is provided on at least one end disk of the cylindrical filter insert, which seal interacts with a sealing surface on the housing to seal the unfiltered air zone from the clean air zone. A clamping wedge is also provided, which exerts a force on the filter insert to urge the axial seal reliably against the sealing surface of the filter housing.

Abstract: 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.

Abstract: An intermediate flange system for an internal combustion engine with direct fuel injection. The intermediate flange system is mounted between the intake device and the cylinder head and includes two subunits (10, 11). The first subunit includes a basic body (12) and is responsible for conducting the fuel. The other subunit includes a basic body (13) and serves to conduct the intake air. Both basic bodies can be optimally designed as a function of demands to which they are subjected. Thus, basic body (13) is preferably made of synthetic resin material, and basic body (12) of aluminum. Consequently, the overall intermediate flange system is lighter than prior art systems, which heretofore have been made entirely of aluminum.

Abstract: A separator for liquid, in particular for removing oil from crankcase gases, having a cover (11) into which a mount (13) for a cylindrical separating cartridge (14) is incorporated. The separating cartridge is composed, for example, of a non-woven separating material (20) wound around a support body (22) having end plates (33) on the end faces (32) of the support body. The end plates (33) may be composed, for example, of a two-component synthetic resin material. This results in a stable component which can be sealed utilizing the elasticity of the end plate (33) when pushed into the mount (13). This results in a cost effective exchangeable part in which several seals are saved in the complete structural component and yields a structural unit having increased economic effectiveness.

Abstract: A releasable fastening device that includes a rivet (3) that can be inserted in through openings (5, 6) of components (1, 2) that are to be mounted. The rivet (3) is provided with a projection at one end and with spreadable expansion elements (4) at its other end. A threaded bolt (8) is axially pushed into an internal counter-thread of the rivet (3) to spread the expansion elements (4). When the fastening device is assembled, the walls of the components (1, 2) or of an intermediate element (7) engage radial recesses on the circumference of the rivet (3) to hold the components securely. Bolt (8) can be unscrewed from the rivet (3) to facilitate disassembly.

Abstract: A control unit comprising at least one electric motor with rotary magnets and optionally a control element, in which arresting elements ensuring the end positions of the control element are provided between movable and stationary parts of the control unit. The drive shaft 11 of the motor 10 is provided, for instance, with radial depressions 18, which engage with a snap connection 19, 20 on the stator. Switching the position of the drive shaft 11 between the two radial depressions defines the control range of the control element. The arresting elements have the advantage that no switching current needs to be applied to the rotary magnet motor except for switching the control element between the two locking positions. This reduces the current consumption of the control unit, while at the same time, enabling high switching speeds to be achieved by the rotary magnet motor.

Abstract: A filter for filtering liquids, especially fuel, which includes a concentric housing, an unfiltered liquid inlet, and filtered fluid outlet, and a backflow member. A concentric filter element, with a dirt collecting chamber in the lowermost part thereof, is disposed in the housing, which is closed with a cover. The housing also contains a riser pipe having a return bore hole in the uppermost part thereof, as well as a return pipe. An intermediate pipe, which is sealingly closed by the cover, is disposed above the riser pipe, and the filter element is removably attached to the intermediate pipe.

Abstract: A method and apparatus for monitoring service-intensive replaceable parts in an assembly in which information regarding a replaceable part (1), such as specifications, physical dimensions, physical properties, functions and/or other data for the replaceable part, is stored on a suitable memory component (5) in and/or on the replaceable part (1). The stored data is read with a reading device at a predetermined time or at predetermined time intervals and transmitted to an evaluation unit. The read data can be compared in the evaluation unit with preset data and, after evaluating the results of the comparison of the data, an appropriate change in the replaceable part or in the operation of the assembly may or may not be carried out.

Abstract: A fuel filter 10, particularly for diesel fuel, which is formed by a filter housing 11 with a filter head 12 and a filter enclosure 13. The filter head 12 has a fuel inlet 14 and a fuel outlet 15. The housing enclosure 13 has a water accumulation chamber 25, which is connected to a water outlet 16. A cylindrical filter element 17 and a water discharge device 27 are arranged in the filter housing 11. The filter element 17 separates an unfiltered side 19 from a filtered side 20 so as to form a seal. The water discharge device 27 seals the water outlet 16 in the housing enclosure 13. The water outlet 16 can be mechanically opened from the outside via an actuating element 29, which is is appropriately connected to the filter head 12 on the one hand and to the water outlet 16 on the other hand.

Abstract: An air intake system for intake air of an internal combustion engine comprising a filter insert (19) in a housing (10) connected to the air conducting system by a plurality of inlets (13) and an outlet (22). The air inlets are provided with individual intake nozzles or fittings and lead to a single common air chamber (20) in the filter housing. The inlets (13) can be individually opened and closed by flap valves (24), thereby allowing the acoustics to be influenced favorably and enabling, for example, the respective intake fittings to be connected or disconnected depending on the temperature. The intake system requires only a limited number of components, and the design of the preferably wedge-shaped air chamber minimizes flow losses in the housing, which in turn decreases the intake noise. Shunt resonators (28) can also be formed using cover elements (29) and (30).