A fuel filter device includes a filter cloth and a skeletal structural member including an inner flange portion positioned inside the filter cloth and a connecting member including an outer flange portion positioned outside the filter cloth, wherein a peripheral edge portion of an opening of the filter cloth is clamped between the inner flange portion and the outer flange portion, the inner flange portion and the outer flange portion jointly defining a center hole and a center bore serving as a communication passage communicating inside of the filter cloth with outside of the filter cloth, and the inner flange portion is provided with a sealing rib to compress the filter cloth to ensure a sealing performance thereof, a welding rib to join the skeletal structural member and the connecting member with each other by welding, and a shifting preventing rib configured to restrict shifting of the filter cloth.

A fuel filter device includes a filter cloth and a skeletal structural member including an inner flange portion positioned inside the filter cloth and a connecting member including an outer flange portion positioned outside the filter cloth, wherein a peripheral edge portion of an opening of the filter cloth is clamped between the inner flange portion and the outer flange portion, the inner flange portion and the outer flange portion jointly defining a center hole and a center bore serving as a communication passage communicating inside of the filter cloth with outside of the filter cloth, and the inner flange portion is provided with a sealing rib to compress the filter cloth to ensure a sealing performance thereof, a welding rib to join the skeletal structural member and the connecting member with each other by welding, and a shifting preventing rib configured to restrict shifting of the filter cloth.

A filter for hydraulic fluids including a container defining inside a housing compartment fluidically communicating with an inlet and an outlet associated with and a filtering cartridge, and partitioning the compartment in first and second chambers. The cartridge is configured and positioned for determining the filtering of the hydraulic fluid from the inlet which flows from the first to the second chambers. The container exhibits an engagement portion projecting inside the housing compartment and defining a collar having an outer coupling lateral surface, while the filtering cartridge exhibits a respective engagement portion defining a respective collar exhibiting an inner coupling lateral surface configured for engaging outside the outer coupling surface of the container. The coupling surface of the engagement portion of the container exhibits a polygonal cross-section; the inner coupling surface of the engagement portion of the cartridge is at least partially countershaped to the coupling surface of the container.

A filter for hydraulic fluids including a container defining inside a housing compartment fluidically communicating with an inlet and an outlet associated with and a filtering cartridge, and partitioning the compartment in first and second chambers. The cartridge is configured and positioned for determining the filtering of the hydraulic fluid from the inlet which flows from the first to the second chambers. The container exhibits an engagement portion projecting inside the housing compartment and defining a collar having an outer coupling lateral surface, while the filtering cartridge exhibits a respective engagement portion defining a respective collar exhibiting an inner coupling lateral surface configured for engaging outside the outer coupling surface of the container. The coupling surface of the engagement portion of the container exhibits a polygonal cross-section; the inner coupling surface of the engagement portion of the cartridge is at least partially countershaped to the coupling surface of the container.

A filter assembly for separating microcarriers from a fluid medium includes a collapsible container bounding a sterile compartment adapted to hold a fluid. An inlet port is attached to the container through which fluid flows into the compartment. An outlet port is attached to the container through which fluid flows out of the compartment. A filter is disposed within the compartment, the filter dividing the compartment into an inlet chamber that is fluidly coupled with the inlet port and an outlet chamber that is fluidly coupled with the outlet port, the filter allowing a medium to pass therethrough but preventing microcarriers disposed in the medium from passing therethrough.

A filter assembly for separating microcarriers from a fluid medium includes a collapsible container bounding a sterile compartment adapted to hold a fluid. An inlet port is attached to the container through which fluid flows into the compartment. An outlet port is attached to the container through which fluid flows out of the compartment. A filter is disposed within the compartment, the filter dividing the compartment into an inlet chamber that is fluidly coupled with the inlet port and an outlet chamber that is fluidly coupled with the outlet port, the filter allowing a medium to pass therethrough but preventing microcarriers disposed in the medium from passing therethrough.

Disclosed are an oil separation apparatus (70) and a horizontal vortex compressor (1) comprising the oil separation apparatus (70). The oil separation apparatus (1) comprises a support (71) and a filter member (72), wherein the support (71) is generally cylindrical and comprises a cylindrical wall (712), the filter member (72) is arranged on the cylindrical wall (712), and the cylindrical wall (712) is provided with an opening (711, 713) used for working fluid to pass through; and the filter member (72) is generally cylindrical, and comprises an inner and an outer holding member (74, 76) holding inner and outer contours of the filter member (72) and end holding members (75a, 75b) provided on axial ends of the filter member (72). The oil separation apparatus (70) can increase the oil level of lubricating oil in the compressor (1), reducing disturbance in an oil tank and reducing oil circulation efficiency.

Disclosed are an oil separation apparatus (70) and a horizontal vortex compressor (1) comprising the oil separation apparatus (70). The oil separation apparatus (1) comprises a support (71) and a filter member (72), wherein the support (71) is generally cylindrical and comprises a cylindrical wall (712), the filter member (72) is arranged on the cylindrical wall (712), and the cylindrical wall (712) is provided with an opening (711, 713) used for working fluid to pass through; and the filter member (72) is generally cylindrical, and comprises an inner and an outer holding member (74, 76) holding inner and outer contours of the filter member (72) and end holding members (75a, 75b) provided on axial ends of the filter member (72). The oil separation apparatus (70) can increase the oil level of lubricating oil in the compressor (1), reducing disturbance in an oil tank and reducing oil circulation efficiency.

An fluid monitoring system can include a filter having an upstream face and a downstream face and defining a form factor, a sensor package arranged within the form factor of the filter to detect at least one quality factor of a surrounding medium, a transmitter electronically coupled to the sensor package and including an antenna for autonomous wireless transmission of the detected fluid quality information, and a power subsystem coupled to the sensor package and the transmitter to provide access to continuous electrical power thereto.

An fluid monitoring system can include a filter having an upstream face and a downstream face and defining a form factor, a sensor package arranged within the form factor of the filter to detect at least one quality factor of a surrounding medium, a transmitter electronically coupled to the sensor package and including an antenna for autonomous wireless transmission of the detected fluid quality information, and a power subsystem coupled to the sensor package and the transmitter to provide access to continuous electrical power thereto.