A passive phase separator includes an inlet to receive two-phase flow into an inner conduit and an outer conduit. An annulus is formed between the inner conduit and the outer conduit. A hydrophobic screen separation device prohibits a flow of liquid from the two-phase flow into the annulus while allowing a flow of gas from the two-phase flow into the annulus, and a gas flow outlet releases the flow of gas from the annulus.

An oil and air separator including a catch can with an inlet and an outlet thereto, the catch can adapted to remove oil from vapors entering the catch can via the inlet, and including an internal reservoir within which oil from the vapors entering the catch can may collect; and a check valve including a first end disposed within the internal reservoir, a second end, and a first fluid pathway therebetween in fluid communication with the internal reservoir, wherein vapors within the internal reservoir may exit the catch can through the first fluid pathway or a second fluid pathway including the outlet.

A device for the treatment of fluid mixtures containing gases, such as in particular hydrogen, air, nitrogen or noble gases, and liquids, such as in particular ionic liquids, hydraulic oil or process liquids, having at least one separating stage (30) for separating the fluid mixture into a gas portion and a liquid portion, which, routed into a collection space (32), results in a float (44) rising, which, at a predeterminable liquid level in the collection space (32), actuates, without contact, a sensor device (42), which preferably actuates a discharge device for the purpose of draining the collection space (32), resulting in the lowering of the float (44), is characterized in that the outer circumference of the float (44) is guided axially displaceably along the inside of the housing wall (54) of the collection space (32), and in that the float (44) has at least one point of passage (50) for gas and/or liquid, which interconnects parts of the collection space (32) in a media-conveying manner, which parts are spatially separated from one another by the float (44).

A phase separator includes an inlet of an inlet duct to receive two-phase flow from a two-phase flow source that is in line with the inlet duct. The two-phase flow includes gas and liquid. The phase separator also includes a liquid permeable membrane arranged at an outlet of the inlet duct to pass the liquid for capture while diverting the gas to result in an annular flow of the gas around the liquid permeable membrane. An outlet of an outlet duct outputs the gas that is separated from the liquid and that results in the annular flow of the gas.

A dust filter is configured to filter air drawn into a vehicle canister. The dust filter includes a first portion including a first engaging portion and a second portion including a second engaging portion. The second portion is attached to the first portion by engagement of the second engaging portion with the first engaging portion. The first portion includes a filtration member and a case. The case includes an inner chamber within which the filtration member is disposed. The case includes a drainage port configured to drain liquid that has infiltrated the inner chamber. The second portion is attached to the first portion to form a cover that covers the drainage port together with the first portion. The cover has an outlet that opens to the outside at a position lower than the drainage port.

The invention relates to a separation unit for separating off liquid components from a gas stream comprising liquid components, the separation unit (1) comprising a metallic tube (3) and a baffler (19), the metallic tube (3) having a first end (5) and a second end (7) and being closed at the first and second ends (5, 7), the baffler (19) being placed inside the metallic tube (3), the metallic tube (3) having a side feed (35) at the first end (5) and a gas outlet (13) at the second end (7). The invention further relates to the use of the separation unit and a process for determining the amount of liquid components in a two phase stream comprising a gaseous phase and liquid components.

A dust filter includes a filter medium configured to filter foreign substances, such as dust, from atmospheric air. The dust filter also includes a case within which the filter medium is disposed. A first chamber in the case on one side of the filter medium defines a clean side, and a second chamber in the case on the other side of the filter medium defines a dirty side. The case includes a first port that provides fluid communication between the first chamber and the air passage, and a second port that provides fluid communication between the second chamber and the surrounding atmosphere. The second port is configured to allow water accumulated in the case to drain to the outside of the case by gravity while the case is mounted on the vehicle.

A filter element assembly (10) is disclosed comprising: a filter element (11) for location in a housing (12) of a filter (14), comprising a wall (15) of a filtration medium which defines a hollow space (16), for a gas stream to flow from the space through the wall, the filtration medium including a filtration layer (18), and a drainage layer (20) located outside the filtration layer, first (22) and second (24) end caps at opposite ends of the wall, one including a port (26) for a gas stream which communicates with the space; and a drainage promoter (56) comprising a fin (58) which can be fitted to the filter element so that it extends at least part way along the element, and compresses the drainage layer along at least part of its length, to promote drainage of liquid which has collected in the drainage layer.

A coalescence separator for separating liquid droplets from a gas flow has a gas inlet and a gas outlet. A multi-layer structure of a plurality of individual layers of a coalescence filter medium is arranged between the gas inlet and the gas outlet, wherein the coalescence filter medium is provided with a glass fiber paper with glass fibers. The individual layers of the coalescence filter medium each have an individual layer thickness of more than 0.8 mm and maximally 5 mm, a grammage of greater than 80 g/m.sup.2 and less than 500 g/m.sup.2, and an air permeability of 350 l/m.sup.2s to 1,800 l/m.sup.2s. The multi-layer structure has between 2 and 80 of the individual layers.

A dust reduction device for a vehicle includes an inlet aperture for receiving airflow created as a result of forward movement of the vehicle. The dust reduction device provides a primary airflow path leading from the inlet aperture to a vehicle opening, and a secondary airflow path leading from the inlet aperture to a ventilation exit. During forward movement of the vehicle, the primary airflow path is substantially blocked by airflow from the secondary airflow path such that airflow from the primary airflow path is provided to the vehicle opening and into the vehicle thereby minimising dust ingress in the vehicle.