The invention relates to a side-channel compressor (1) for a fuel cell system (37) for conveying and/or compressing a gas, particularly hydrogen, comprising a housing (3), the housing (3) comprising a housing upper part (7) and a housing lower part (8), a compressor chamber (30) located in the housing (3), comprising at least one peripheral side channel (19), a compressor wheel (2) arranged in the housing (3), which is rotatably arranged about an axis of rotation (4), the compressor wheel (2) comprising blades (5) arranged on the periphery thereof in the region of the compressor chamber (30), and respectively a gas inlet (14) embodied in the housing and a gas outlet (16) which are fluidically interconnected by means of the compressor chamber (30), particularly the at least one side channel (19). According to the invention, the compressor wheel (2) comprises a peripheral stop ring (11) on the periphery thereof, which extends around the compressor wheel (2) in a rotationally symmetric manner in relation to the axis of rotation (4).

The invention relates to a side-channel compressor (1) for a fuel cell system (37) for conveying and/or compressing a gaseous medium, in particular hydrogen, comprising a housing (3); a compressor chamber (30) which is situated in the housing (3) and which has at least one encircling side channel (19, 21); a compressor impeller (2) which is situated in the housing (3) and which is arranged so as to be rotatable about a rotational axis (4), wherein the compressor impeller (2) has conveying cells (5) arranged on the impeller circumference in the region of the compressor chamber (30); and in each case one gas inlet opening (14) formed on the housing (3) and one gas outlet opening (16), which are fluidically connected together via the compressor chamber (30), in particular the at least one side channel (19, 21). The housing (3) has a respective first and second end face (32, 34) radially to the rotational axis (4), each end face facing the compressor impeller (2), and a first and second functionally relevant gap dimension (36, 38) is formed in the region of each gap surface. According to the invention, the compressor impeller (2) is designed in multiple parts and has a first impeller shell (10) and a second impeller shell (12). The impeller shells (10, 12) are arranged adjacently to each other axially to the rotational axis (4) in particular, and each impeller shell is at least partly made of a plastic.

Provided is a regenerative blower. According to an illustrative embodiment of the present invention, the regenerative blower comprises an impeller comprising a plurality of blades disposed spaced apart in the circumferential direction, wherein, in the plurality of blades, each blade gap is arranged at an incremental angle (ΔΘi).

The invention relates to a side-channel machine having a housing (4a), located in the housing (4a) a side-channel (28) for guiding a gas, and at least one gas inlet opening (34) which is formed in the housing (4a) and is fluidically connected to the side-channel (28). Furthermore, the side-channel machine has at least one gas inlet pipe (29a) which connects to the at least one gas inlet opening (34), The side-channel machine further comprises at least one gas outlet opening (33) and at least one gas outlet pipe (31a) which connects to the at least one gas outlet opening (33). Furthermore, the side-channel machine has an impeller that can be made to rotate in the housing (4a), with impeller blades, which bound impeller cells arranged in the side-channel (28), for delivering the gas in the impeller cells from the at least one gas inlet opening (34) to the at least one gas outlet opening (33). The side-channel machine further has at least one interrupter (39) arranged between the at least one gas inlet opening (34) and the at least one gas outlet opening (33).

A blower housing, especially for a side channel blower, includes a first housing part (22) with a motor mounting space (25) for a blower motor (14). A rotor shaft (16), rotatable about a shaft axis of rotation (A), of a blower motor (14) is or can preferably be rotatably mounted at the first housing part (22). A housing cover (44) seals the motor mounting space (25). The housing cover (44) has a cover meshing opening (46). A second housing part (50), with a cover meshing projection (52), is positioned or can be positioned in a meshing manner in the cover meshing opening (46). The cover meshing opening (46) is sealed with the cover meshing projection (52) being positioned in a meshing manner in the cover meshing opening (46).

A multipurpose, hand-held device comprises a focused light source and a ducted fan. The device produces and directs light and airflow, for the purpose of illuminating an area while starting and maintaining a fire. The airflow feature rapidly accelerates combustion. With the added safety and convenience of a hand-held, integrated flashlight, the device's controllable airflow delivers the capability to rapidly ignite and maintain fires made with charcoal, wood, coal, fire starters, paper, newspaper, cardboard, dung, etc.

The present invention discloses an airflow accelerating device and an electronic apparatus. The airflow accelerating device comprises: a housing, having a chamber formed therein; at least one vibrating plate, disposed within the chamber; at least one division plate, fixed in the housing, for dividing the chamber into at least two sub-chambers, each of the at least two sub-chambers having at least one air outlet configured to transmit airflow generated by vibration of the vibrating plate to outside of the chamber.

A side channel compressor for compressing a gas includes a housing and at least one impeller which is arranged in the housing and configured to be driven in rotation about a central axis. In addition, the side channel compressor includes at least one seal assembly arranged in the housing and including at least one sealing device configured to seal at least one gap between the housing and the at least one impeller and be forced radially outward with respect to the central axis in order to keep the at least one gap small. The at least one seal assembly also includes at least one sealing-device-holding device configured to hold the at least one sealing device in an axially secured fashion with respect to the central axis and which includes at least one main holding body.

A vertical gas cooler suitable for use as an intercooler in a multi-stage compressor includes an inlet at its upper portion, a tube bundle, a centrally disposed mist eliminator assembly and a side-draw outlet. Optionally provided is a drain pipe from the mist eliminator assembly to a sump located below the side-draw outlet.

The invention relates to a side-channel machine having a housing (4a), located in the housing (4a) a side-channel (28) for guiding a gas, and at least one gas inlet opening (34) which is formed in the housing (4a) and is fluidically connected to the side-channel (28). Furthermore, the side-channel machine has at least one gas inlet pipe (29a) which connects to the at least one gas inlet opening (34). The side-channel machine further comprises at least one gas outlet opening (33) and at least one gas outlet pipe (31a) which connects to the at least one gas outlet opening (33). Furthermore, the side-channel machine has an impeller that can be made to rotate in the housing (4a), with impeller blades, which bound impeller cells arranged in the side-channel (28), for delivering the gas in the impeller cells from the at least one gas inlet opening (34) to the at least one gas outlet opening (33). The side-channel machine further has at least one interrupter (39) arranged between the at least one gas inlet opening (34) and the at least one gas outlet opening (33).