Abstract: A filter device includes a functional element and a filter element arranged in a filter housing. The filter element includes an enclosure positioned about a central axis and below filter material of the filter element. The enclosure includes an enclosure wall that defines an inner volume that is in fluid communication with an orifice of the functional element when the filter element is positioned over the functional element.

Abstract: An equalizing tank for a cooling system of an electric battery for an electric drive train is disclosed. The equalizing tank includes a dimensionally stable housing having at least one opening that is connected to the cooling system of the battery. A flexible fluid-tight casing is arranged inside the housing and connected in a fluid-tight manner to the at least one opening such that a fluid can flow at least one of into and out of the flexible fluid-tight casing. The flexible fluid-tight casing being structured and arranged such that, depending on a degree to which the equalizing tank is filled with the fluid, the flexible fluid-tight casing rests against an inner wall of the housing.

Abstract: A fuel filter element, which may be selectively arranged in a filter housing and may separate in the filter housing an untreated space communicating with an inlet and a return line of the housing from a treated space communicating with an outlet of the housing, may include at least one end disk, and at least one closure element, which in an operationally ready state of the fuel filter may close off the return line. The closure element may protrude eccentrically axially away from the at least one end disk. The closure element may have a seal on a surrounding surface and that, in the operationally ready state, may be in contact with a surface of the return line. In the operationally ready state, a portion of the closure element may be located in a filter chamber of the filter housing and another portion of the closure element may be located in the return line.

Abstract: A liquid filter for a motor vehicle may include a hollow cylindrical housing bowl, a cover that closes the housing bowl, a suspended, hollow cylindrical particle filter arranged in the housing bowl, a catch basin that is opened towards the cover, and an edge overflow. The particle filter may extend parallel to a longitudinal center axis of the housing bowl and may divide the housing bowl into a clean liquid chamber and into a raw liquid chamber. The raw liquid chamber may be fluidically connected to at least one inlet arranged in the cover and the clean liquid chamber to at least one outlet arranged in the cover.

Abstract: A fuel filter for an internal combustion engine may include a filter housing, a filter housing cover detachably connected to the filter housing, a filter space delimited by the filter housing cover and the filter housing, and a ring filter element arranged in the filter space. The filter housing cover may include a head portion and a foot portion. The filter housing cover may have at least one foot inner diameter and at least one head inner diameter that extend transversely to an axial direction. The ring filter element may have at least one outer diameter that corresponds to the at least one foot inner diameter. The at least one head inner diameter may be smaller than the at least one foot inner diameter. The ring filter element may form a venting device, which may form at least one venting channel that leads into the head portion.

Abstract: A fuel filter element, which may be selectively arranged in a filter housing and may separate in the filter housing an untreated space communicating with an inlet and a return line of the housing from a treated space communicating with an outlet of the housing, may include at least one end disk, and at least one closure element, which in an operationally ready state of the fuel filter may close off the return line. The closure element may protrude eccentrically axially away from the at least one end disk. The closure element may have a seal on a surrounding surface and that, in the operationally ready state, may be in contact with a surface of the return line. In the operationally ready state, a portion of the closure element may be located in a filter chamber of the filter housing and another portion of the closure element may be located in the return line.

Abstract: A filter device comprises a filter housing having a filter housing cup and a filter housing cover. An insert insertable into the filter housing comprises an eccentrically arranged and axially projecting first positioning element configured to engage a positioning contour on a side of the filter housing cup. A guide ramp is provided on the filter housing cup and interacts with a guide device arranged on the insert. The guide ramp is formed of at least one ring segment and extends continuously over at most 270°, and the guide device has a second positioning element. At least one web is arranged on the insert and forms the second positioning element, and the at least one web comprises at least two webs with different axial longitudinal extents arranged one of on the lower end plate of the insert and directly on the insert.

Abstract: A filter device may include a filter housing and a ring filter element arranged upright in the filter housing in an installed state. The ring filter element may include an upper end disc, a lower end disc, and at least two projecting pins, each of which in the installed state may engage in an associated draining passage. One of the connecting pins may be arranged offset relative to another of the connecting pins by at least 120° in a circumferential direction of the ring filter element.

Abstract: A fuel filter for cleaning fuel for an internal combustion engine may include a main filter and a prefilter arranged upstream of the main filter, through which a fuel is successively flowable. The prefilter may include a water separator configured to separate water present in the fuel. The water separator may include a water collection chamber structured and arranged to collect the separated water. The prefilter fluidically connected to the main filter via a conveying device structured and arranged to convey the fuel from the prefilter into the main filter. The conveying device may be configured to provide an excess pressure build up. The fuel filter may also include a suction jet pump fluidically connected to the water collection chamber via which at least one of the fuel and the water is dischargeable from the water collection chamber.

Abstract: A filter element includes an upper end disc, a lower end disc, a filter material arranged between the upper end disc and the lower end disc, a dirt pot on the lower end disc, a pin attached at an attachment location and configured to be received within a channel in an installation orientation, the pin extending away from the attachment location along an axis, the pin having a base of a first width at the attachment location, the pin having a free end and a groove defined between the attachment location and the free end, the pin having a second width that defines a circumference of the groove, the second width approximately orthogonal to the axis, wherein the first width is greater than the second width, and an opening in the dirt pot.

Abstract: A filter device may include a ring filter element arranged in a filter housing in an upright manner. The ring filter element may have an upper end disc, a lower end disc, a filter material arranged therebetween, and a dirt pot provided on the lower end disc. The dirt pot may be provided on the lower end disc, a protruding pin, and an opening on a base side of the dirt pot. The filter device may include a functional element having a channel configured to receive the protruding pin. A portion of the functional element may be configured to penetrate the opening of the dirt pot such that the ring filter element is sealed at the opening. The portion of the functional element may have at least one water discharge opening. The filter device may be operational when the pin engages into the channel.

Abstract: A filter element includes an upper end disc, a lower end disc, a filter material arranged between the upper end disc and the lower end disc, a dirt pot on the lower end disc, a pin attached at an attachment location and configured to be received within a channel in an installation orientation, the pin extending away from the attachment location along an axis, the pin having a base of a first width at the attachment location, the pin having a free end and a groove defined between the attachment location and the free end, the pin having a second width that defines a circumference of the groove, the second width approximately orthogonal to the axis, wherein the first width is greater than the second width, and an opening in the dirt pot.

Abstract: A filter device may include a filter housing and a ring filter element arranged upright in the filter housing in an installed state. The ring filter element may include an upper end disc, a lower end disc, and at least two projecting pins, each of which in the installed state may engage in an associated draining passage. One of the connecting pins may be arranged offset relative to another of the connecting pins by at least 120° in a circumferential direction of the ring filter element.

Abstract: A filter device comprises a filter housing having a filter housing cup and a filter housing cover. An insert insertable into the filter housing comprises an eccentrically arranged and axially projecting first positioning element configured to engage a positioning contour on a side of the filter housing cup. A guide ramp is provided on the filter housing cup and interacts with a guide device arranged on the insert. The guide ramp is formed of at least one ring segment and extends continuously over at most 270°, and the guide device has a second positioning element. At least one web is arranged on the insert and forms the second positioning element, and the at least one web comprises at least two webs with different axial longitudinal extents arranged one of on the lower end plate of the insert and directly on the insert.

Abstract: A double-armature solenoid valve may include an adjustable first armature and an adjustable second armature arranged axially opposite each other along a common adjustment axis, and a coil mechanism configured to provide a magnetic flux. The valve may also include a first restoring spring, a second restoring spring, an inlet opening arranged on an axial side of the first armature opposite the second armature, and an outlet opening arranged on an axial side of the second armature opposite the first armature. The inlet opening and the outlet opening may be connected via a fluid duct. The first armature and the second armature may respectively have a different closing time such that when an energization of the coil mechanism is at least one of interrupted and reduced the inlet opening is closable more quickly via the first armature than the outlet opening via the second armature.

Abstract: A filter element includes an upper end disc, a lower end disc, a filter material arranged between the upper end disc and the lower end disc, a dirt pot on the lower end disc, a pin attached at an attachment location and configured to be received within a channel in an installation orientation, the pin extending away from the attachment location along an axis, the pin having a base of a first width at the attachment location, the pin having a free end and a groove defined between the attachment location and the free end, the pin having a second width that defines a circumference of the groove, the second width approximately orthogonal to the axis, wherein the first width is greater than the second width, and an opening in the dirt pot.

Abstract: The invention relates to a fuel filter (1) for cleaning fuel (K) for an internal combustion engine (20), having a main filter (3) and a prefilter (2) which is arranged upstream of the main filter (3), through which fuel (K) can successively flow, wherein the prefilter (2) has for separating water (W) present in the fuel (K) a water separator (4) which comprises a water collection chamber (5) for collecting the separated water (W), wherein the prefilter (2) is connected in fluid terms to the main filter (3) by means of a conveying device (18) which conveys the fuel from the prefilter into the main filter (3), having a suction jet pump (6) which is connected in fluid terms to the water collection chamber (5) in order to discharge water (W) from the water collection chamber (5).

Abstract: A fuel filter element, which may be selectively arranged in a filter housing and may separate in the filter housing an untreated space communicating with an inlet and a return line of the housing from a treated space communicating with an outlet of the housing, may include at least one end disk, and at least one closure element, which in an operationally ready state of the fuel filter may close off the return line. The closure element may protrude eccentrically axially away from the at least one end disk. The closure element may have a seal on a surrounding surface and that, in the operationally ready state, may be in contact with a surface of the return line. In the operationally ready state, a portion of the closure element may be located in a filter chamber of the filter housing and another portion of the closure element may be located in the return line.

Abstract: A filter device may include a filter housing and a filter element defining a longitudinal axis disposed in the filter housing. The filter element may be configured to be penetrated by a fluid flow in a radial direction from a raw end to a pure end of the filter element. A water separator may be disposed at the pure end of the filter element and arranged axially spaced from the same. The water separator may have a hydrophobic and annular diaphragm extending in an axial direction of the filter element configured to be penetrated by the fluid flow from a raw end of the water separator in a radially outward to a radially inward direction with respect to the longitudinal axis to separate water from the fluid flow.

Abstract: A filter device may include a filter housing and a filter element defining a longitudinal axis disposed in the filter housing. The filter element may be configured to be penetrated by a fluid flow in a radial direction from a raw end to a pure end of the filter element. A water separator may be disposed at the pure end of the filter element and arranged axially spaced from the same. The water separator may have a hydrophobic and annular diaphragm extending in an axial direction of the filter element configured to be penetrated by the fluid flow from a raw end of the water separator in a radially outward to a radially inward direction with respect to the longitudinal axis to separate water from the fluid flow.