Aircraft engine oil tanks, lubrication systems, and associated methods are provided. The oil tank includes a first tank portion defining a first volume for holding oil and a second tank portion defining a second volume for holding oil, in fluid communication with the first volume. The first tank portion includes an oil outlet for delivering oil to a lubrication load via a pump. The first volume is in fluid communication with a vent opening for venting the oil tank. At least part of the second tank portion is disposed higher than the vent opening for retaining a quantity of oil inside the oil tank during a negative-g force flight condition and facilitate the recovery of the lubrication system following the negative-g force flight condition.

Magnetic chip detectors and associated for detecting metallic chips in engine fluid of an engine are provided. A magnetic chip detector includes first and second magnetic chip capture zones. The first magnetic chip capture zone includes a first electrically conductive terminal spaced apart from a second electrically conductive terminal to define a first chip-receiving gap therebetween. The second magnetic chip capture zone includes a third electrically conductive terminal and either the second electrically conductive terminal or a fourth electrically conductive terminal to define a second chip-receiving gap therebetween. The magnetic chip detector includes an electric circuit including both the first chip-receiving gap and the second chip-receiving gap. The electric circuit provides an output indicative of a chip detection by one or both of the first magnetic chip capture zone and the second magnetic capture zone.

Magnetic chip detectors and associated for detecting metallic chips in engine fluid of an engine are provided. A magnetic chip detector includes first and second magnetic chip capture zones. The first magnetic chip capture zone includes a first electrically conductive terminal spaced apart from a second electrically conductive terminal to define a first chip-receiving gap therebetween. The second magnetic chip capture zone includes a third electrically conductive terminal and either the second electrically conductive terminal or a fourth electrically conductive terminal to define a second chip-receiving gap therebetween. The magnetic chip detector includes an electric circuit including both the first chip-receiving gap and the second chip-receiving gap. The electric circuit provides an output indicative of a chip detection by one or both of the first magnetic chip capture zone and the second magnetic capture zone.

A cleaning system of a vehicle oil circuit is provided, including a filter unit, an oil storage unit and a flushing unit. The filter unit includes a filter chamber, a first oil inlet tube and an oil outlet tube. The first oil inlet tube is communicated with a first opening of the vehicle oil circuit. The oil outlet tube is communicated with a second opening of the vehicle oil circuit. The oil storage unit includes a waste oil chamber and a second oil inlet tube communicated with a third opening of the vehicle oil circuit. The flushing unit includes a flushing chamber and a flushing tube. The flushing chamber receives a washing oil. The flushing tube is communicated respectively with the flushing chamber and a fourth opening of the vehicle oil circuit. The flushing tube guides the washing oil to enter the vehicle oil circuit.

An expandable engine fluid catcher that is configured to attach to an engine fluid filter, such as an oil filter, and catch engine fluid as the fluid filter is removed from the engine. An engine may be part of a vehicle and the engine fluid filter may be an oil filter. An expandable engine fluid catcher has a retainer portion having a retainer band that is secured around the engine fluid filter. Most engine fluid filters are cylindrical in shape and therefore a band, and in particular an elastic band, may be used to attach the expandable engine fluid catcher to the fluid filter. A pleated portion of the expandable engine fluid catcher has a plurality of pleats that extend from the retainer band upward to an expandable end that can be flared out, or expanded, to provide a larger diameter for catching engine fluid therein.

An expandable engine fluid catcher that is configured to attach to an engine fluid filter, such as an oil filter, and catch engine fluid as the fluid filter is removed from the engine. An engine may be part of a vehicle and the engine fluid filter may be an oil filter. An expandable engine fluid catcher has a retainer portion having a retainer band that is secured around the engine fluid filter. Most engine fluid filters are cylindrical in shape and therefore a band, and in particular an elastic band, may be used to attach the expandable engine fluid catcher to the fluid filter. A pleated portion of the expandable engine fluid catcher has a plurality of pleats that extend from the retainer band upward to an expandable end that can be flared out, or expanded, to provide a larger diameter for catching engine fluid therein.

A device for passing lubricant out of a lubricant collecting container to a lubricant pump, in particular for an oil circuit of an internal combustion engine. The device including a lubricant intake pipe and a sedimentation container, which is connected fluidically to the lubricant intake pipe.

Oil jet device including a main body and having a fluid communication passage held in fluid communication with an oil passageway, a nozzle pipe having an oil ejection port, a check valve opening and closing the fluid communication passage when a check ball and a valve seat which are disposed in the main body abut against each other, and a filter having a fluid communication hole and being disposed upstream of the check valve, wherein the inside diameter of the valve seat is smaller than the inside diameter of the filter, and the valve seat has an upstream end wall surface facing at least some of the fluid communication holes, and the upstream end wall surface includes a slanted surface arranged such that the cross-sectional area of an oil channel is progressively smaller in a direction from an upstream region toward a downstream region of the oil channel.

Oil jet device including a main body and having a fluid communication passage held in fluid communication with an oil passageway, a nozzle pipe having an oil ejection port, a check valve opening and closing the fluid communication passage when a check ball and a valve seat which are disposed in the main body abut against each other, and a filter having a fluid communication hole and being disposed upstream of the check valve, wherein the inside diameter of the valve seat is smaller than the inside diameter of the filter, and the valve seat has an upstream end wall surface facing at least some of the fluid communication holes, and the upstream end wall surface includes a slanted surface arranged such that the cross-sectional area of an oil channel is progressively smaller in a direction from an upstream region toward a downstream region of the oil channel.

A vent for a machinery enclosure such as an automotive axle comprises a vent body having passageway between the interior of the enclosure and the exterior of the enclosure and an ePTFE membrane covering the passageway. The membrane and a fibrous sorbent are disposed within the passageway between the interior of the enclosure and the membrane.