Abstract: A belt for an elevator system includes one or more tension members extending along a belt length, and a jacket at least partially encapsulating the one or more tension members. The jacket defines a traction surface configured to interface with a traction sheave of the elevator system, a back surface opposite the traction surface, and two edge surfaces extending between the traction surface and the back surface. The traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces.

Abstract: A lubrication device for a helicopter including: an oil sump in which oil for lubrication is retained; a lubrication pump configured to suck the oil from the oil sump to discharge the oil; and a lubrication passage extending from the lubrication pump to a first lubrication target. The lubrication passage includes: a first supply port that supplies the oil to the first lubrication target; an oil reservoir provided upstream of the first supply port; and an opening provided upstream of the oil reservoir and above the oil reservoir. The first supply port is formed right above the first lubrication target.

Abstract: An oil supply system includes a first oil receptacle collecting oil from a transmission and a second oil receptacle collecting oil from the rest of a drive system using gravity. Oil supply pump(s) supply oil from the oil receptacle(s) to the different consumers. A vacuum pump generates a negative pressure in the first oil receptacle and in the transmission casing connected to the first oil receptacle. A gas check valve prevents gas from flowing between the oil receptacles when a pressure differential is applied to the oil receptacles by the vacuum pump. An oil check valve prevents oil from flowing between the oil receptacles when the pressure differential is applied. An oil regulating valve may control the oil flow between the first and second oil receptacles. The oil supply system provides a simpler configuration without scavenging pump(s).

Abstract: A baffle plate (4) including a body portion (5), a cover portion (8, 9) and a seal member (88, 98), a final gear (25) and a driven sprocket (DS) disposed in an accommodating chamber (Sa, Sb) of the baffle plate (4), an oil pump (OP) serving as a source of oil (OL) for lubrication, and an oil pan (16) are provided. At least one of the body portion (5), the cover portions (8, 9) and the seal members (88, 98) includes a material that shrinks as the temperature of the oil (OL) decreases. The baffle plate (4) is dimensioned such that a gap (CL1, CL2) is sealed by the seal member (88, 89) when the temperature of the oil (OL) is equal to or higher than a predetermined oil temperature and an aperture (CL?) is formed when the temperature of the oil (OL) is less than the predetermined oil temperature.

Abstract: A fluid sump for accommodating a lubricating fluid and transmission housing for a vehicle comprising such a fluid sump. The fluid sump may comprise a first compartment for collecting the lubricating fluid, a second compartment in which the lubricating fluid can be brought in contact with a rotating member, and an intermediate compartment having a first opening for introducing the lubricating fluid from the first compartment into the intermediate compartment, a second opening for introducing the lubricating fluid from the intermediate compartment into the second compartment, and a floating element. In one or more examples, the first opening can be opened and closed by the floating element, and the first compartment, the intermediate compartment and the second compartment are provided with ambient pressure.

Abstract: A system and method for lubrication system are provided. The lubrication system includes a floater container including a floater compartment that contains a buoyant floater, where the floater container is coupled to a housing bulkhead and where the floater container includes an inlet opening in a first wall that is off-axis from a horizontal plane and forms an angle with a second wall. Further, the housing bulkhead includes an outlet opening positioned lower than the inlet opening and provides fluidic communication between the floater compartment and a rotating component compartment that contains a rotating component.

Abstract: An elevator system includes a car that can be moved along guide rails in an elevator shaft and a car apron attached to the car. The car apron is supported on the guide rails. The car apron is collapsible with two flat apron elements hinged together at a horizontal fold line. For the support, the car apron has a support structure that adjoins a lower end of the lower flat apron element and includes guide elements that engage the guide rails.

Abstract: A power assembly and a vehicle. The power assembly includes a housing, and a first drive motor, a first speed reducer, a first oil path, a second drive motor, a second speed reducer, a second oil path, and a third oil path that are located inside the housing. The power assembly further includes a first oil pump and a second oil pump. The housing is provided with an oil pan. The first drive motor includes a first stator and a first rotor. The second drive motor includes a second stator and a second rotor. Both the first oil pump and the second oil pump are connected to the oil pan. The power assembly simplifies the oil paths in the housing and improve an integration level.

Abstract: An industrial truck (2) with a lift mast (4), a hydraulic system (10), and a method for operating a hydraulic system (10). The lift mast (4) of the industrial truck (2) is driven by a mast lift cylinder (12) and includes at least one mast lift stage (42). A free lift stage is present that is driven by a free lift cylinder (8) with which a load receiving means (6) can be displaced along the lift mast (4). The industrial truck (2) includes a hydraulic system (10) for supplying the at least one mast lift cylinder (12) and the at least one free lift cylinder (8) with a hydraulic fluid (14). The hydraulic system (10) is configured to at least at times simultaneously actuate the at least one mast lift cylinder (12) and the at least one free lift cylinder (8) in load lifting operation and/or in load lowering operation.

Abstract: A grease gun comprising a body having first and second chambers, first and second pistons within those first and second chambers, primary and secondary grease channels, a grease outlet and an actuator, is provided. Actuation of the actuator by a user causes first and second pistons to move within first and second chambers. The body may further comprise a pressure sensitive spool which allows the grease gun to move from a high flow/low pressure operation to a high pressure/low flow operation when there is a grease blockage that causes an increase in the pressure in the body.

Abstract: A transmission lubricating structure includes a power transmitting shaft, a main lubricating circuit, and an auxiliary lubricating circuit. The power transmitting shaft includes an ejection hole communicating an inside with an outside of the power transmitting shaft. The main lubricating circuit includes: a main nozzle having a nozzle hole through which lubricating oil supplied from a main tank is discharged to the internal space of the power transmitting shaft; and a hydraulic pump configured to supply the lubricating oil by pressure from the main tank to the main nozzle. The auxiliary lubricating circuit includes an auxiliary nozzle arranged lower than an auxiliary tank and higher than a lubrication target at the outside of the power transmitting shaft, the auxiliary nozzle being configured to drop the lubricating oil, supplied from the auxiliary tank by an own weight of the lubricating oil, toward the lubrication target.

Abstract: In order to improve and in particular to more economically manufacture and/or assemble and/or maintain a sump device comprising a sump body particularly for an oil supply in a commercial motor vehicle having a pipe unit comprising a pipe body wherein the sump body is an injection moulded part of plastics material, it is proposed that the pipe unit be arranged on the sump body with play.

Abstract: A fluid pump system for an aircraft has a rotatable component having first and second fluid ports, each port in fluid communication with a selected interior portion of the component, the portions being spaced from each other. A valve controls allows a first flow rate through the first fluid port and allows a second flow rate through the second fluid port when the component is in a first angular orientation. The valve allows a third flow rate through the first fluid port and allows a fourth flow rate through the second fluid port when the component is in a second angular orientation.

Abstract: A roller-type chain for a bicycle is configured with asymmetrical chain link plates, the chain link plates applicable for use with a chain with reduced chain width as in use on chain drives with a high number of gear ratios. The chain link plates are configured at the inner side of the chain loop for engagement on the teeth of the rear sprocket and of the front chain wheel. The chain link plates are further configured at the outer side of the chain loop for interaction with the chain-guiding roller on the rear gearshift mechanism.

Abstract: A gearbox for a gas turbine engine. The gearbox including a rotor and a gutter. The oil system is configured to supply oil to the gearbox. The rotor is rotatable about a rotation axis. The rotor expels oil radially outward when the rotor rotates. The gutter is positioned radially outward of the rotor to collect oil expelled by the rotor when the rotor rotates. The gutter is positioned eccentrically with respect to the rotor.

Abstract: An assembly is provided for rotational equipment. This assembly includes a first rotatable body and an injector. The first rotatable body extends axially along and circumferentially about a rotational axis. The first rotatable body includes a first scoop with a first scoop aperture that extends obliquely through the first rotatable body. The injector includes a first nozzle orifice and a second nozzle orifice. The injector is configured to direct a first fluid jet from the first nozzle orifice into an inlet of the first scoop aperture. The injector is further configured to direct a second fluid jet from the second nozzle orifice into the inlet of the first scoop aperture.

Abstract: A drive system for an aircraft such as a tiltrotor aircraft. The drive system includes first and second gearbox assemblies in mechanical communication with each other. A first lubrication system is associated with the first gearbox assembly and includes a bifurcated tank configured to contain a lubricant in an operating chamber including a lower sump and in an emergency chamber including an upper sump. A second lubrication system is associated with the second gearbox assembly. An emergency pump is in fluid communication with the emergency chamber. The emergency pump is configured to supply the lubricant to the first gearbox assembly from the emergency chamber responsive to a failure in the first lubrication system. In addition, the emergency pump is configured to supply the lubricant to the second gearbox assembly and to the operating chamber from the emergency chamber responsive to a failure in the second lubrication system.

Abstract: A device for lubricating a hinge includes a housing, a first elongated opening, and an absorption element. The first elongated opening allows the housing to be placed over at least a portion of a hinge. The first absorption element entirely disposed within the housing such that the first absorption element is positioned to engage a portion of a hinge when the housing is placed over the portion of the hinge.

Abstract: Electromagnetic actuators for an elevator systems and encapsulated components thereof are described. The encapsulated components include an encapsulating body and a component assembly is arranged within the encapsulating body, wherein at least some parts of the component assembly are contained within a material of the encapsulating body.

Abstract: A method for installing an elevator system in an elevator shaft of a building in its construction phase uses a machine platform displaceable in the shaft along car guide rails and having a drive machine for moving a suspended elevator car to adapt a usable lifting height of the elevator car to an increasing height of the building by lifting the machine platform to a higher level. The method includes lowering a pre-assembled elevator unit into the shaft by a lifting device, using guide devices that are either mounted on the elevator unit and cooperate with stationarily fixed alignment elements in the shaft, or are fixed in the shaft and cooperate with alignment elements on the elevator unit, to align the unit in a position suitable for fitting guide shoes on the elevator unit and the car guide rails into one another.