Abstract: A humidifier has a housing with inlet and outlet for a first fluid and inlet and outlet for a second fluid. A plate stack with channel plates sequentially arranged in a stacking direction is arranged in the housing. The channel plates have flow channels for the first and second fluids, respectively, separated by semipermeable membranes. The plate stack has a first end plate arranged at a first end and a second end plate arranged at a second end, wherein the first and second ends face away from each other in stacking direction. The housing has a receiving device interacting with a counter receiving device at the plate stack for supporting and sealing the plate stack in the housing. The counter receiving device extends in a plane normal to the stacking direction and is arranged at the first or second end plate. A plate stack for the humidifier is provided.

Abstract: A fastening module for connecting a filter system to an arched connecting surface with openings for a fluid has a connecting housing connectable in fluid communication to the filter system. Rigid individual channel pieces are arranged in the connecting housing and channels extend in the channel pieces. The channels correspond with the openings in the arched connecting surface. The channel pieces have connecting flanges to be connected to the openings in the arched connecting surface. The channel pieces are connected by flexible connecting regions with each other; with the connecting housing; or with each other and with the connecting housing. The fastening module is connected in fluid communication to the inlet region or outlet region of the filter system. A filter module for the filter system has substantially free intake across its cross section and enables an intake manifold-type distribution of a volume flow passing through the filter element.

Abstract: A fastening module for connecting a filter system to an arched connecting surface with openings for a fluid has a connecting housing connectable in fluid communication to the filter system. Rigid individual channel pieces are arranged in the connecting housing and channels extend in the channel pieces. The channels correspond with the openings in the arched connecting surface. The channel pieces have connecting flanges to be connected to the openings in the arched connecting surface. The channel pieces are connected by flexible connecting regions with each other; with the connecting housing; or with each other and with the connecting housing. The fastening module is connected in fluid communication to the inlet region or outlet region of the filter system. A filter module for the filter system has substantially free intake across its cross section and enables an intake manifold-type distribution of a volume flow passing through the filter element.

Abstract: An air-guiding component for a charged internal combustion engine has an intercooler provided with coolant connectors that is disposed in a housing of the air-guiding component. The housing has at least two housing parts including a basic housing part. The housing is provided with at least one inlet and at least one outlet for charge air and is further provided with at least one passage for the coolant connectors of the intercooler. The intercooler is arranged between the at least one inlet and the at least one outlet so as to be flowed through by the charge air. The housing has housing walls and at least one of the housing walls has at least one corrugation.

Abstract: An intake pipe for intake gas of an internal combustion engine has an intake pipe channel and a flap unit with a flap shaft and a flap fixedly arranged on the flap shaft. The flap unit alternatingly opens or closes the intake pipe channel. A hollow insert body is disposed in the intake pipe channel, wherein the flap unit is arranged in the insert body and the flap is positioned in a hollow interior of the insert body. The insert body has opposite end faces and the opposite end faces are open. The flap shaft extends through opposite walls of the insert body in a radial direction relative to an insert body axis of the insert body. The insert body is rotatable on the flap shaft. A radial inner circumferential side of the insert body widens toward at least one of the open end faces.

Abstract: A heat exchanger (10) cooling a fluid and a method for manufacturing, the heat exchanger (10) having an outer pipe section (12) in which a plurality of inner pipe sections (36) with channels for the fluid to be cooled are disposed. At least one cooling fluid channel (56) is disposed in the outer pipe section (12). The at least one cooling fluid channel (56) and the at least one channel for the fluid to be cooled are in heat contact and fluidically separated from each other. A plurality of inner pipe sections (36) open on both ends (38, 46) form of a pipe bundle (34) having ends fixed tightly in a corresponding lead-through opening (40) of an upstream end body (42) and fixed tightly with the other end (46) in a corresponding lead-through opening (48) of a downstream end body (50).

Abstract: The invention relates to apparatus (1) for a charging system of an internal combustion engine (31), comprising a housing (2) in which a secondary line (6) of an additional compressor (33) opens at an opening (54) into an air duct (5) of the internal combustion engine (31), a closing device (8) in the housing (2) for closing the air duct (5) upstream of the outlet (54), wherein the closing device (8) is arranged pivotably about a geometric axis of rotation (14), and at least one spring (21) arranged in the housing (2), wherein the spring (21) biases the closing device (8) in the closing direction, and wherein the closing device (8) is moved exclusively by the spring force of the spring (21) and the pressure condition upstream (55) and downstream (56) of the closing device (8).

Abstract: An air distributor for an internal combustion engine is provided with at least two housing parts, wherein a flow channel for combustion air extends through the housing parts. An additional channel is provided that is formed by a gap between the housing parts and opens into the flow channel.

Abstract: A switching device for influencing the air current in at least one air intake channel of an internal combustion engine, wherein the switching device comprises: a housing having an open interior through which the air intake channel extends; at least one switching unit arranged in the housing and having with at least one switching element for at least partially closing and opening the at least one intake channel; wherein the housing is received in a cylinder head of an internal combustion engine and which has a distance corresponding to an air gap between the housing and the cylinder head in a radial direction.

Abstract: An air-guiding component for a charged internal combustion engine has an intercooler provided with coolant connectors that is disposed in a housing of the air-guiding component. The housing has at least two housing parts including a basic housing part. The housing is provided with at least one inlet and at least one outlet for charge air and is further provided with at least one passage for the coolant connectors of the intercooler. The intercooler is arranged between the at least one inlet and the at least one outlet so as to be flowed through by the charge air. The housing has housing walls and at least one of the housing walls has at least one corrugation.

Abstract: An intake pipe for intake gas of an internal combustion engine has an intake pipe channel and a flap unit with a flap shaft and a flap fixedly arranged on the flap shaft. The flap unit alternatingly opens or closes the intake pipe channel. A hollow insert body is disposed in the intake pipe channel, wherein the flap unit is arranged in the insert body and the flap is positioned in a hollow interior of the insert body. The insert body has opposite end faces and the opposite end faces are open. The flap shaft extends through opposite walls of the insert body in a radial direction relative to an insert body axis of the insert body. The insert body is rotatable on the flap shaft. A radial inner circumferential side of the insert body widens toward at least one of the open end faces.

Abstract: A heat exchanger (10) cooling a fluid and a method for manufacturing, the heat exchanger (10) having an outer pipe section (12) in which a plurality of inner pipe sections (36) with channels for the fluid to be cooled are disposed. At least one cooling fluid channel (56) is disposed in the outer pipe section (12). The at least one cooling fluid channel (56) and the at least one channel for the fluid to be cooled are in heat contact and fluidically separated from each other. A plurality of inner pipe sections (36) open on both ends (38, 46) form of a pipe bundle (34) having ends fixed tightly in a corresponding lead-through opening (40) of an upstream end body (42) and fixed tightly with the other end (46) in a corresponding lead-through opening (48) of a downstream end body (50).

Abstract: In an intake system of an internal combustion engine, with an inlet duct which includes at least one inlet valve, and with a throttle member for swirling the gas flowing to the inlet valve, the throttle member is movable into the inlet duct in an introduction direction and can be moved into a position in which it bears annularly against a wall section of the inlet duct where the inlet duct has a recess accommodating the throttle member.

Abstract: An air intake, especially for internal combustion engines with a V-shaped cylinder arrangement, which is composed of two units (16a, 16b). From the two units (16a, 16b) extend the intake ducts (19a, 19b), each associated with one cylinder bank (11) of the internal combustion engine. By dividing the air intake device into two units (16a, 16b), the unit (16a) can be mounted first on the internal combustion engine, a free space (20) for the mounting tool being necessary. Then the unit (16b) is placed and bolted on, the air intake ducts (19b) being able to run through the free space (20) in the hatched area (23), since the unit (16a) is already installed. The advantage of this air intake tube configuration is a substantially greater geometric freedom of design.

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: An intake pipe (10) for an internal combustion engine composed of shells (11a, 11b) in which the geometry of the joining surfaces (19) adopts an approximately stepped course in areas with a slight incline relative to to joining force (F). This produces areas with a greater or lesser inclination relative to a joint line (16) indicating the average inclination of the joining surfaces. This results in areas which can be welded with a high degree of stability because of their considerable incline towards the joining force. These areas can then support areas which are less inclined towards the joining force. This allows the shells (11a, 11b) to have strongly curved joining surfaces, which increases the geometric design freedom of the intake pipe and, in particular, makes it possible to manufacture intake pipes with strongly curved intake channels constructed from just two shells.

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 air intake especially for internal combustion engines with a V-shaped cylinder arrangement, which is composed of two units (16a, 16b). From the two units (16a, 16b) extend the intake ducts (19a, 19b), each associated with one cylinder bank (11) of the internal combustion engine. By dividing the air intake device into two units (16a, 16b), the unit (16a) can be mounted first on the internal combustion engine, a free space (20) for the mounting tool being necessary. Then the unit (16b) is placed and bolted on, the air intake ducts (19b) being able to run through the free space (20) in the hatched area (23), since the unit (16a) is already installed. The advantage of this air intake tube configuration is a substantially greater geometric freedom of design.

Abstract: An intake pipe (10) for an internal combustion engine composed of shells (11a, 11b) in which the geometry of the joining surfaces (19) adopts an approximately stepped course in areas with a slight incline relative to to joining force (F). This produces areas with a greater or lesser inclination relative to a joint line (16) indicating the average inclination of the joining surfaces. This results in areas which can be welded with a high degree of stability because of their considerable incline towards the joining force. These areas can then support areas which are less inclined towards the joining force. This allows the shells (11a, 11b) to have strongly curved joining surfaces, which increases the geometric design freedom of the intake pipe and, in particular, makes it possible to manufacture intake pipes with strongly curved intake channels constructed from just two shells.

Abstract: A duct system suitable for use as an intake manifold for an internal combustion engine, including flap valves (13) for selective opening and closing of the ducts. The positions of the valves are continuously adjustable in order to produce a swirl in the flow of combustion air. To achieve this, a high degree of angular precision is required in the positioning of the valves. Intake manifold manufacturing tolerances need to be compensated during assembly of the valves. A valve adjusting mechanism is provided in mechanical couplings (23) of the valve linkage between the position adjusting motor (19) and the flap valves (13).