Abstract: A marine engine assembly for mounting to a watercraft is disclosed. The marine engine assembly has an engine unit, an exhaust system fluidly and a propulsion device. The engine unit includes an engine unit housing, an internal combustion engine and an air intake assembly. The air intake assembly, at least one combustion chamber, and the exhaust system together defining at least in part a gas flow pathway. A sealing valve is provided in the gas flow pathway. The sealing valve has an open position permitting flow of gas therethrough. The sealing valve has a closed position preventing flow of gas therethrough for sealing a portion of the gas flow pathway downstream of the sealing valve from a portion of the gas flow pathway upstream of the sealing valve. An air pump is configured for supplying air to the gas flow pathway downstream of the sealing valve.

Abstract: Clearance control systems with electromagnetic actuators are disclosed. An example electromagnetically-actuated clearance control system for a gas turbine engine comprises an electromagnetic coil coupled to a first end of a facesheet, the electromagnetic coil to generate a magnetic field in response to a connection of a power supply, a ferromagnetic sheet coupled to a second end of the facesheet, the ferromagnetic sheet drawn radially-inward toward the electromagnetic coil when the magnetic field is generated, a first end of the ferromagnetic sheet coupled to a first compression spring and a second end of the ferromagnetic sheet coupled to a second compression spring, the first and second compression springs to compress in response to the ferromagnetic sheet being drawn radially-inward.

Abstract: A multi-stage hydraulic rotating machine (MSHRM) maintains near-optimal efficiency over widely varying conditions of service (COS) when controlling a fluid having a gas volume fraction (GVF) greater than 50% and large changes in volumetric flow rate (VFR) between stages. The MSHRM includes separately controlled stages having at least two different designs with different VFR ranges. Stage impellor differences can include impellor diameter, blade pitch, blade width, blade number, inlet diameter, and outlet diameter. Diffusers can differ in similar ways between stages. VFR ranges can be progressively higher or lower in successive stages. The stages can share a common VFR range within which incompressible liquids can be controlled. The MSHRM can function as a pump or turbine, and can be applicable to energy storage and recovery in “green” energy systems.

Abstract: An air cleaner for vehicles includes: a case having an inlet, through which outside air is introduced, and an outlet, through which filtered air is discharged; and a filter installed in an inner space of the case, configured to filter the outside air introduced through the inlet, and including a filtration member, wherein the filtration member is formed in an “?” shape open downwards and is configured to allow the outside air to pass therethrough in a downward direction and in a lateral direction.

Abstract: An oil supply system for supplying oil to a lubricating cavity of a gas turbine engine, the oil supply system has: a de-oiler having a de-oiler air-oil inlet, a de-oiler oil outlet hydraulically connected to the lubricating cavity, and a de-oiler air outlet in fluid flow communication with an environment outside of the oil supply system; and a closed-loop oil circuit including a main pump having a main pump inlet and a main pump outlet, the main pump outlet hydraulically connected to the lubricating cavity, a de-aerator having a de-aerator inlet hydraulically connected to a scavenge outlet of the lubricating cavity, a de-aerator air-oil outlet in fluid flow communication with the de-oiler inlet, and a de-aerator oil outlet hydraulically connected to the main pump inlet.

Abstract: The invention includes methods and devices for preventing excessive NOx formation during the combustion event of a compression-ignition engine with any combustible fuel (diesel, Jet-A, JP8, bio fuel, etc).

Abstract: Disclosed is a cabin air compressor (CAC) of an aircraft environmental control system, the CAC having: a CAC case defining a forward end, an aft end axially spaced apart from the forward end, wherein the forward end defines a compressor inlet; and a supplemental cooling jacket, positioned around at least a portion of the CAC case and at least partially conforming the CAC case, and wherein the supplemental cooling jacket is configured to direct a cooling medium through it.

Abstract: A method for controlling an internal combustion engine cooling system includes pumping coolant in an engine cooling loop with a coolant pump, pumping the coolant in an air cooler loop that includes a liquid-to-liquid heat exchanger with the coolant pump, and receiving a condition signal indicative of at least one condition associated with the internal combustion engine. The method also includes, based on the condition signal, adjusting a position of a flow control valve to modify a flow of coolant to the liquid-to-liquid heat exchanger.

Abstract: Methods and systems to diagnose operation of an engine coolant pump are presented. In one example, the engine coolant pump is operated while an engine is stopped so that operation of the coolant pump may not effect engine operation. The engine coolant pump may be operated at different speeds to assess engine coolant pump operation.

Abstract: A cylindrical filter device of the present invention includes a wavy filter screen, a sealing device, and a connecting device. The wavy filter screen includes a first flexible side strip, a second flexible side strip opposite to the first flexible side strip, and a plurality of wavy structures disposed between the first flexible side strip and the second flexible side strip. The wavy filter screen wraps to form a cylindrical structure with respect to an axis. The opposite ends of the cylindrical structure are respectively wrapped to form a first opening and a second opening by the first flexible side strip and the second flexible side strip. The sealing device is disposed at the first opening and has a first groove. The first flexible side strip is able to engage with the first groove with its elasticity and makes the first opening be sealed by the sealing device. The connecting device is disposed at the second opening. The connecting device has a second groove and a port.

Abstract: The invention relates to a fluid drain plug (10) for a fluid reservoir (50) with a drain hole (51), the plug having an extension in an axial direction (A) and comprising a body part (16) rotationally insertable into the drain hole (51), the body part having a proximal axial end (15), a distal axial end (17) and a substantially circular cross section with an outer surface (18), wherein the body part comprises a drain channel (92) having an inlet (91) located at the distal axial end and an outlet opening (94) disposed on the outer surface (18), the body part further comprising a bayonet-type connection slot (40) for accommodating a part of a radial projection (52) of a circumferential surface surrounding the drain hole (51), the bayonet-type connection slot being disposed on the outer surface and comprising an entrance (40a) at the distal axial end, a first path (41) and a second path (42), the first path (41) extending from the entrance, in the axial direction (A) and in one circumferential direction (C), to a

Abstract: A snow bike intake, snow bike conversion kit, and/or air intake pod snow bike conversion kit, having: a throttle body coupling; an elbow-shaped intake duct coupled to the throttle body, a pre-filter body cage coupled at a rear thereof to the duct, and a textile cover fitting about the cage. The duct has an interior angle between 40 and 60 degrees. There are a plurality of flat (interior and exterior surface) sensor mounts disposed about and through the duct, including an octagonal ring of sensor mounts circumscribing the duct body. The cage has a flat front opposite the rear that has a larger diameter than a diameter of the rear. The duct has an aspect ratio of exterior angle length to diameter no greater than 3.5:1 and the duct and prefilter combined has an aspect ratio of exterior angle length to diameter no greater than 4.5:1.

Abstract: An optimized protection against ice on the inner and outer faces of an aircraft engine nacelle air intake with the air intake including an outer face and an inner face meeting at a line at the longitudinally extreme, called extremum line, an acoustic panel being installed on the inner surface of a part of the inner face. An elimination system based on vibration of the ice formed is put in place on at least a part of the outer face and an ice formation prevention system using a hot fluid is put in place on at least a part of the inner face and either an ice elimination system or an ice formation prevention system using a hot fluid is installed on the inner face and on the outer face, a marking line marking the boundary between the two systems.

Abstract: A heat exchange system includes a first thermal circuit, a second thermal circuit, and a controller. A first thermal circuit includes a first device, a first pump, and a first flow path and a second flow path configured to cool the first device. A second thermal circuit includes a second device, a second pump, and a third flow path and a fourth flow path configured to cool the second device. A controller is configured to switch, when the controller switches a flow path of the first thermal circuit from the first flow path to the second flow path and switches a flow path of the second thermal circuit from the fourth flow path to the third flow path, the fourth flow path to the third flow path and the first flow path to the second flow path.

Abstract: A vehicle includes: an electronic device accommodated in an accommodation case of a power storage device; and a signal wiring connected to an electronic device and an in-vehicle device, the signal wiring being a signal wiring in which a signal to be received or transmitted by the electronic device or the in-vehicle device travels. An exhaust pipe is disposed at a position adjacent to a first side surface, and the signal wiring is drawn out from the second side surface to outside of the accommodation case.

Abstract: A straddle vehicle includes: an on-vehicle part disposed behind an engine and including a battery; and a traveling wind passage structure disposed at a lateral side of the on-vehicle part. The battery includes a heat radiator exposed a side surface of the battery. The traveling wind passage structure includes: an inflow port into which traveling wind flows; a outflow port from which the traveling wind flows; and a side wall that is located between the inflow port and the outflow port and defines a passage between the side wall and a side surface of the on-vehicle part. The passage includes: a heat exchange region adjacently located at a lateral side of the heat radiator; and an upstream region adjacently located upstream of the heat exchange region. A passage sectional area of the heat exchange region is smaller than a passage sectional area of the upstream region.

Abstract: The engine oil collection container comprises a collection pan and a perforated cover. The engine oil collection container may be a container for collecting oil. One or more emptied oil bottles may be held in an inverted position by a plurality of bottle apertures located on the perforated cover so that residual oil within the one or more emptied oil bottles may drain into the collection pan. A top aperture located at the top center of the perforated cover may be operable to collect the oil from a non-bottled oil source. As a non-limiting example, the non-bottled oil source may be an oil collection basin or a vehicle oil pan. In some embodiments, the engine oil collection container may comprise a rolling stand that is operable to reduce friction between the bottom of the collection pan and the ground when moving the container.

Abstract: An unducted fan turbine engine comprising an engine core including a first airflow, and a nacelle circumscribing at least a portion of the engine core and having an exterior surface defining a second airflow. The nacelle further comprising an internal passage between the exterior surface and the engine core, the internal passage defining a third airflow. The unducted fan turbine engine further comprising a plurality of rotatable fan blades extending radially beyond the exterior surface of the nacelle, and a cowl door located in the nacelle.

Abstract: A watercraft paddle assembly for enhancing comfort while paddling a watercraft includes a paddle that has a handle portion is elongated and a paddle portion. A roller attachment is coupled to the handle portion and the roller attachment is distally positioned with respect to paddle portion of the paddle. The roller attachment has an attached section that is oriented at an angle with a roller section. A roller is rotatably integrated into the roller section of the roller attachment such that the roller can be gripped by the user. The roller is oriented to rotate about an axis that is oriented perpendicular to a lengthwise axis of the paddle to facilitate the user to grip the roller and the handle portion of the paddle in a preferred manner for paddling.

Abstract: An air induction system includes an air duct and an air permeable membrane. The air duct is configured to deliver intake air to an engine. The air duct includes a cylindrical wall defining a bore and an enclosure projecting from an outer radial surface of the cylindrical wall and defining a cavity therein. The cylindrical wall has an opening extending therethrough that enables airflow from the bore to the cavity in the enclosure. The air permeable membrane is configured to cover the opening in the cylindrical wall.