An inflation needle includes a first end for insertion into an inflatable object, a second end for connection to a pump and an elongated member having a conduit for air therethrough and connecting the first end and the second end, where at least a portion of the elongated member includes a flexible portion. The flexible portion may include a flexible bellows.

Start-stop engine systems for a turbocharged engine have a bypass with fluid flow from upstream of the compressor or downstream of the compressor to a position between the throttle and the engine, or from between the compressor and throttle to a position upstream of the compressor with a Venturi device in the bypass. A device requiring vacuum is in fluid communication with a suction port of the Venturi device. An electronic vacuum pump is added that is in fluid communication with the device requiring vacuum or with the Venturi device. The electronic vacuum pump is operated during a stop condition of the start-stop engine to replace the vacuum generated by the Venturi device or to provide a pressure drop across the Venturi device so the Venturi device continues to generate vacuum for the device requiring vacuum.

A railroad powered energy cogeneration system and method comprising a plurality of air compressor hoses, a plurality of manifold pipelines, at least one manifold pipeline check valve, a pneumatic air filter, a pneumatic motor-generator set, and a pressure control valve, wherein the plurality of manifold pipelines is configured to connect each of the plurality of air compressor hoses attached to an inner side of each of the rails of an existing railroad system. The plurality of air compressor hoses produces compressed air when a train traverses over them. The at least one manifold pipeline check valve is configured to assure unidirectional air flow through the plurality of manifold pipelines. The pneumatic motor-generator set converts compressed air into electricity and the remaining compressed air is stored in the storage vault and/or other storage means described.

A tube can include a sidewall defining a lumen profile. The sidewall can include a plurality of alternating thin regions and thick regions. The lumen profile can include a plurality of alternating large radius and small radius regions. The thin regions or large radius regions can include elastic instabilities adapted to form an essentially complete closure of the lumen profile at minimal compression.

A tube can include a sidewall defining a lumen profile. The sidewall can include a plurality of alternating thin regions and thick regions. The lumen profile can include a plurality of alternating large radius and small radius regions. The thin regions or large radius regions can include elastic instabilities adapted to form an essentially complete closure of the lumen profile at minimal compression.

A tube pump and a fluid delivery method, the tube pump including a plurality of pressing portions and a tube that delivers fluid. The pressing portions is spaced apart from each other in a rotational direction and provided for a rotation body turned by a drive unit and the tube is provided on an outer circumferential side of the rotation body. The tube pump includes a control unit that turns the rotation body opposite to a delivery direction until the rotation body reaches a predetermined angle so as to restore an area of the tube, pressed by the pressing portion on a most upstream side in the delivery direction, by an increase in pressure within the tube accompanied with a movement opposite to the delivery direction of the pressing portion adjacent to a downstream side in the delivery direction.

A tube pump and a fluid delivery method, the tube pump including a plurality of pressing portions and a tube that delivers fluid. The pressing portions is spaced apart from each other in a rotational direction and provided for a rotation body turned by a drive unit and the tube is provided on an outer circumferential side of the rotation body. The tube pump includes a control unit that turns the rotation body opposite to a delivery direction until the rotation body reaches a predetermined angle so as to restore an area of the tube, pressed by the pressing portion on a most upstream side in the delivery direction, by an increase in pressure within the tube accompanied with a movement opposite to the delivery direction of the pressing portion adjacent to a downstream side in the delivery direction.

An inhalation device (1) comprising a compressor (2), an aerosol generator (3) and a pressure relief valve (4), wherein the compressor (2) is configured to provide a compressed gas for the aerosol generator (3) and the pressure relief valve (4) is configured to limit a pressure in the inhalation device (1).

An inhalation device (1) comprising a compressor (2), an aerosol generator (3) and a pressure relief valve (4), wherein the compressor (2) is configured to provide a compressed gas for the aerosol generator (3) and the pressure relief valve (4) is configured to limit a pressure in the inhalation device (1).

A pump comprises a body portion defining a hollow interior cavity, an inlet port, and an outlet port, and a plunger portion. A distal end of a first outlet hose is coupled to the outlet port, and a proximal end of the first outlet hose is coupled to an inlet port of a diverter valve. A first output assembly is coupled a first outlet port of the diverter valve, and a proximal end of the second outlet hose is coupled to a second outlet port of the diverter valve. A distal end of the second outlet hose is coupled to a second output assembly. A cover assembly is coupled to the diverter valve and configurable between a first position and a second position. In the first position, the cover assembly prevents access to the first output assembly. In the second position, the cover assembly allows access to the first output assembly.