An oil separating device is provided in an intake path through which a cavity of a mold and an intake port of a vacuum pump communicate with each other and the oil separating device is configured to separate oil from a combustion gas flowing through the intake path. The oil separating device includes a first tubular body and a spiral plate accommodated in the first tubular body. The spiral plate and the first tubular body define a spiral flow path.

A filter for a grate of a storm drain, the grate having a plurality of grate slots, includes: (a) a plurality of parallel, spaced-apart chambers dimensioned for being inserted through the grate slots, each the chamber defining an open top and comprising a plurality of apertures in at least one side of the each chamber; and (b) a frame connecting the plurality of chambers to each other, the frame not obstructing the chambers from being inserted through the grate slots such that the filter is removably installable without moving the grate.

A lock inserts through one of the grate slots for locking the filter to at least one of the storm drain and the grate. The lock receives a key with a handle for removing the filter from the grate.

An indicator indicates when the filter is full. A solar panel powers the indicator.

An adaptor device for retrofitting in a filter housing is disclosed. The adaptor device allows the filter to be retrofitted with a plurality of filter elements, thereby improving its filtering efficiency.

Systems are provided for an oil system including a filter with a large surface area. In one example, a system may include an oil filter with a prismatic shape. This shape may include a filter surface area greater than an inlet area of an oil port and the filter surface area may also be located a distance away from the oil port.

A stormwater management system comprising a floor having a drainage opening and a filter. The filter is operatively attached to a portion of the floor adjacent the drainage opening such that the filter covers the drainage opening so that water flowing from the stormwater management system into the drainage opening passes through the filter. The filter has a filter area adapted to permit stormwater to flow therethrough, with the filter area of the filter being at least twice as large as the drainage opening area.

A membrane casing that watertightly houses a membrane element for filtering raw water includes a tubular casing main body, a lid body, and a pressing mechanism. The casing main body houses a membrane element. The lid body fits an opening end of the casing main body and is movable in the axial direction of the casing main body while maintaining the attitude and while securing watertightness with the casing main body. The pressing mechanism and presses the lid body to press and hold the membrane element housed in the casing main body. The membrane casing has a simple configuration capable of watertightly securing using a predetermined pressing force by accommodating variations in size of the membrane element, even if the membrane casing cannot be formed into a cylindrical shape.

A filtration assembly filters diesel fuel used by a diesel engine and includes a filter element disposed within a housing. The housing includes an unfiltered fuel inlet and a filtered fuel outlet. The filter element disposed within the housing receives fuel from the fuel inlet. The filter element defines a peripheral wall sealably engaging filter media defining an unfiltered side and a filtered side of the filter element. The unfiltered side is enclosed with an impermeable barrier affixed to the peripheral wall and the filtered side is enclosed with a permeable water diffuser through which filtered fuel passes. A water separator assembly is disposed externally to the filter element receiving filtered fuel from the water diffuser. The water separator assembly includes water separator media preventing water from passing into the separator. The separator assembly interconnects to the filtered fuel outlet providing filtered, dewatered diesel fuel to the diesel engine.

A filter assembly for filtering diesel fuel used by a diesel engine includes a housing that defines a housing opening, an unfiltered fuel inlet and a filtered fuel outlet. A panel is matable to the housing for sealably enclosing the opening for forming a housing chamber. A panel encloses the opening and defines an inner surface. A filter element formed from a peripheral wall includes filter media defining an unfiltered side and a filtered side of said filter element. The peripheral wall is sealably affixed to the inner surface enclosing the unfiltered side of the filter element from the housing chamber defining an unfiltered chamber. A permeable barrier is affixed to the peripheral wall defining a filtered chamber with the filtered side of said filter element receiving filtered fuel through the filter media. The housing chamber receives filtered fuel through though the permeable barrier.

A wedge shaped filter element for use with a variety of fluids and fluid mixtures is disclosed. Greater in filtration efficiency is provided due to increased filter media and compact arrangement that can be provided with a plurality of filter elements in filter housing. The wedge shaped filter elements can be used for filtration, coalescing fluids and separation of gas from liquid.

Membrane cell stack arrangement and method of manufacturing such a membrane cell stack arrangement. The arrangement has a housing (2) having a central axis, and a stack of membrane cells (4), each membrane cell (6) being arranged inside the housing (2) with a major surface (6a) of the membrane cell (6) oriented substantially perpendicular to the central axis. Each membrane cell (6) has a corner recess (12) between each two adjacent sides of at least four sides (10a-d). Sealing compartments (14) are provided by corner recesses (12) of adjacent membrane cells of the stack of membrane cells (4) in co-operation with a part of an inner surface (2a) of the housing (2).