An evacuation station for collecting debris from a cleaning robot includes a controller configured to execute instructions to perform one or more operations. The one or more operations includes initiating an evacuation operation such that an air mover draws air containing debris from the cleaning robot, through an intake of the evacuation station, and through a canister of the evacuation station and such that a receptacle received by the evacuation station receives at least a portion of the debris drawn from the cleaning robot. The one or more operations includes ceasing the evacuation operation in response to a pressure value being within a range. The pressure value is determined based at least in part on data indicative of an air pressure, and the range is set based at least in part on a number of evacuation operations initiated before the evacuation operation.

Disclosed is a system for capturing braking particles from a friction braking system, which includes a vacuum source, a pneumatic circuit which connects the friction braking system to the vacuum source, and a particle filtration system located on the pneumatic circuit and including a support and a filter which is mounted on the support and which, during operation, becomes clogged with particles, preferentially on the surface. The capture system further includes a storage container which is able to receive particles that become detached from the filter.

Disclosed is a system for capturing braking particles from a friction braking system, which includes a vacuum source, a pneumatic circuit which connects the friction braking system to the vacuum source, and a particle filtration system located on the pneumatic circuit and including a support and a filter which is mounted on the support and which, during operation, becomes clogged with particles, preferentially on the surface. The capture system further includes a storage container which is able to receive particles that become detached from the filter.

The filtering apparatus includes: a casing having an inlet for a fluid from the outside and an outlet for the fluid having filtered therein; filter elements having opposite-end openings, provided in the casing, and each filtering the fluid by allowing the fluid to flow therethrough in inside-to-outside directions; backwashing pipes sequentially connected to the opposite-end openings at different timings between the opposite-end openings of each filter element so as to backwash the filter element by allowing the fluid to flow therethrough in outside-in directions; removers each axially moved in the corresponding filter element by the filtration or backwashing flow, while sliding in contact with the inner periphery of the filter element so as to remove trapped objects; and a backwashing fluid drain pipe coupled to the discharge side of the backwashing pipes and allowing the trapped objects removed by each remover to be discharged to the outside.

An air filtration system for an operator environment of an agricultural vehicle having at least one external inlet, a first filtration device having a coarser level of filtration located between the external inlet and an HVAC system, a second filtration device having a second finer level of filtration and an associated blower located between the external inlet and the HVAC system 4, where the system selectively connects either the first filtration device to the HVAC system blower or the second filtration device and its associated blower to the HVAC system blower and includes a bypass permanently connecting the HVAC system blower and the second filtration device.

An air filtration system for an operator environment of an agricultural vehicle including at least one external inlet, a first filtration device having a coarser level of filtration located between the external inlet and an HVAC system, a second filtration device having a second finer level of filtration and an associated blower located between the external inlet and the HVAC system, where the air filtration system selectively connects either the first filtration device to the HVAC system blower or the second filtration device and its associated blower to the HVAC system blower and a bypass permanently connects the HVAC system blower and the second filtration device.

A dust collector (1) is provided with a tank section (10) and a head section (20). The tank section (10) has a dust collection chamber (13) for containing dust. The head section (20) has a motor (23) and a dust collection fan (25). The dust collection chamber (13) has a cylindrical filter device (12) which, when air sucked in from the suction opening (11) flows through the filter device (12), separates dust from the air. A passage member (50) forms an air passage by which the outside air and a filter interior space (14) inside the filter device (12) are connected without having the filter device (12) therebetween. A cover body (60) closes the passage member (50) in an openable manner. The passage member (50) has first opening sections (53) facing the filter interior space (14) and located at different positions in the circumferential direction of the filter device (12).

A separator for separating solid particles from a processing gas stream that has been fed repeatedly through a work machine, wherein the separator includes a processing gas inlet through which particle-laden processing gas emitted from the work machine is fed into the separator, and a filterless separator element to reduce the particle content of the processing gas and a processing gas outlet to discharge the processing gas with its reduced particle content to the work machine, the separator including a secondary stream filter, which filters a smaller portion of the processing gas, and a secondary outlet, connected thereto, which ejects the filtered secondary stream of processing gas.

A powder collector including a box including a first opening configured to pass powder therethrough, a bottom portion disposed so as to oppose the first opening, and a side portion that intersects the first opening and the bottom portion, the box being configured to install a bag provided so as to be in communication with the first opening, a second opening provided in the box, the second opening being configured to suction a gas inside the box, a plurality of frames disposed in at least either one of the bottom portion and the side portion, and a flow portion configured to flow the gas therethrough. In the powder collector, the flow portion is a gap formed between a frame among the plurality of frames and another frame among the plurality of frames.

1. Filter device for the filtration of gases contaminated with particles.

2. A filter device for the filtration of gases contaminated with particles, such as welding gases, which are in particular produced in manufacturing processes using 3D printers in a production room (52), having a filter circuit having at least one filter element (55, 56), which filters the particles from the gas, wherein at least a part of said particles get from this filter element (55, 56) into an assignable receptacle (59), is characterized in that the particles within a back-flushing process get into the respective receptacle (59), and in that at least one further filter circuit, having at least one further filter element (NF1, NF2), is present, which filters a fluid, which has the particles obtained at the back-flushing process.