Abstract: A method and device for removal of solid contaminants from an air-containing, contaminated oil by leading the oil to the inlet of a filter separating the contaminated oil in a solid phase, which is retained by the filter, and a liquid phase, which passes the filter and leaves as a filtrate through the outlet of the filter. An increased pressure is added on the filtrate outlet. The filtration is more efficient as disturbing air bubbles are avoided.

Abstract: The present relates to an oil filtration system (1) comprising an oil filtration unit (2), an oil filter (13) having a central opening (15) extending along a central axis (B) of the oil filter (13), the oil filtration unit (2) being provided with at least one first physical structure (18,18?,18?) having a first cross-sectional shape and a predefined longitudinal length (x) in relation to the central axis (A) of the oil filtration unit (2), the oil filter (13) being provided with at least one second physical structure (23,23?,23?) having a second cross sectional shape and a predefined longitudinal length (y) in relation to the central axis (B) of the oil filter (13) and an inner or outer periphery of the second physical structure (23,23?,23?) being arranged to mate with the outer or inner periphery of the first physical structure (18,18?,18?) allowing the oil filter (13) to reach its correct insertion position in the oil filtration unit (2), where at least one of the end surfaces (28,29,31) of the oil filter (

Abstract: A device (200) for processing of a liquid comprises a device-input (202) for receiving the liquid to be processed at an input-pressure (p1), a device-output (216) for returning the processed liquid at an output-pressure (p4), a process chamber, and vacuum generating means communicating with a gas filled portion of the process chamber via a vacuum port for reducing the pressure therein to a vacuum-pressure. The process chamber further has a chamber-inlet (208) and a chamber-outlet (210), the chamber-inlet (208) being connected to the device-input (202) via a feed-line (203, 207), and the chamber-outlet (210) being connected to the device-output (216) via a discharge-line (211, 215).

Abstract: A device for processing of a liquid that includes a device-input for receiving the liquid to be processed at an input-pressure, a device-output for returning the processed liquid at an output-pressure, and a process chamber having a chamber-inlet and a chamber-outlet, and a feed-line for connecting the chamber-inlet to the device-input. The feed-line includes a multi-stage pump for increasing the pressure of the liquid from the input-pressure to a feed-pressure at the chamber-inlet, a discharge-line for connecting the chamber-outlet to the device-output which discharge-line includes back-pressure means adapted to maintain a discharge-pressure at the chamber-outlet upstream of the back-pressure means at an excess-pressure above the output-pressure, and to reduce the pressure of the liquid from the discharge-pressure to the output-pressure downstream of the back-pressure means. The pump in the feed-line is a first stage of a multiple-stage gear pump.

Abstract: A method and device for removal of solid contaminants from an air-containing, contaminated oil by leading the oil to the inlet of a filter separating the contaminated oil in a solid phase, which is retained by the filter, and a liquid phase, which passes the filter and leaves as a filtrate through the outlet of the filter. An increased pressure is added on the filtrate outlet. The filtration is more efficient as disturbing air bubbles are avoided.

Abstract: A device for purifying liquid in a reservoir and including a vacuum chamber (1) having an inflow opening (2) and an outflow opening (3) adapted to communicate with the liquid in the reservoir through a feed conduit (4) and a return conduit (5), respectively. The return conduit (5) is provided with a pump (6) and the vacuum chamber is connected with a vacuum pump (7). The device further includes a filter cartridge (8) provided with a plurality of filter elements, each having a flow side communicating with a central passage (26) and a flow side opening into the periphery of the filter cartridge (8). The filter cartridge (8) is arranged inside the vacuum chamber, the central passage (26) of the filter cartridge communicating with the inflow opening (2) of the vacuum chamber.

Abstract: In a filtering device comprising one or more filtering elements (1) having in principle co-axially disposed through-going apertures (4) for the passage of fluid, the individual filtering element (1) consists of two identical filtering discs (2, 3) which abut each other closely along their outer peripheral edges, and which at the sides facing away from each other are formed in such a way that several filtering elements (1) abut each other closely along the inner edges adjacent to the aperture (4).