An aspirator for a brake system is provided having integrated functions of a flow bypass and a check valve for automotive applications to achieve various suction flow openings in response to different engine operating conditions to enhance brake boost performance. The brake system includes a brake vacuum booster, an engine having an intake manifold, an aspirator having a movable convergence nozzle, the aspirator being connected to the manifold, and a vacuum line connecting the booster to the aspirator. The aspirator includes a body having an interior end wall. A biasing element such as a spring is provided between the movable convergence nozzle and the interior end wall of the aspirator body. The body of the aspirator has an air flow path having an upstream area and a downstream area. The movable convergence nozzle is positioned in the upstream area of the flow path.

Slip joint clamps seat on a diffuser end via external features of the diffuser, like guide ears, regardless of slip joint wear or damage. The clamps can be opened and closed to surround an inlet mixer forming a slip joint with the diffuser without disassembly. Slip joint clamps drive or bias the inlet mixer in a lateral direction largely perpendicular to the axial orientation and end of the diffuser to achieve a desired preload force in the inlet mixer and clamp connection. Clamp arms include rotatable halves that, when joined, form a complete fill between an inner surface of the diffuser and outer surface of the inlet mixer. A lateral drive pushes the inlet mixer against the clamp and may include a resistive element. An accessible set of guide ear bolts and lateral driving bolts permit exterior manipulation to axially mount or laterally bias the clamp in the slip joint.

A jet and venturi tube arrangement is provided for a fuel delivery module. The arrangement includes a venturi tube 14 having an opening 15, an internal wall 24 and a central axis C. A jet 10′ is provided that has an exit 22. The jet 10′ is constructed and arranged to spray a stream 12 of fuel from the exit 22 into the opening 15 of the venturi tube 14 substantially along the central axis C. The jet 10′ has surface features 20, near the exit, constructed and arranged to divert a portion 12′ of the stream 12 of fuel so that the portion 12′ contacts the internal wall 24 of the venturi tube 14 thereby limiting back flow of fuel through the opening of the venturi tube.

A jet and venturi tube arrangement is provided for a fuel delivery module. The arrangement includes a venturi tube 14 having an opening 15, an internal wall 24 and a central axis C. A jet 10′ is provided that has an exit 22. The jet 10′ is constructed and arranged to spray a stream 12 of fuel from the exit 22 into the opening 15 of the venturi tube 14 substantially along the central axis C. The jet 10′ has surface features 20, near the exit, constructed and arranged to divert a portion 12′ of the stream 12 of fuel so that the portion 12′ contacts the internal wall 24 of the venturi tube 14 thereby limiting back flow of fuel through the opening of the venturi tube.

An assembly for controlling the eductive dispensing of multiple chemical fluids is described. The assembly is designed to detachably engage with existing eductor valve assemblies as either an original part or as a replacement part. The assembly comprises a plurality of selector gears that rotatably engage with eductor valve assemblies. The selector gears are in communication with a control gear. When the assembly is attached to a plurality of eductor valve assemblies an individual can control the rotation of multiple valve assemblies by rotating a single control knob.

A quick-release vacuum pump which is mainly applied to a vacuum transport system. The vacuum pump has a mechanism in which part of compressed air supplied for generating a vacuum state is stored firstly in a chamber, and then the vacuum state within the chamber is released when transportation is completed. When the vacuum state is released, a check valve is moved by the pressure of air that flows backward. The range of movement of the check valve is adjusted by a control means. An air filter is disposed at the lower end of the check valve. The release of the vacuum state is quick and controllable. Also, the filter is naturally filtered and cleaned.

A refrigerant that has flowed out of a liquid ejector radiates heat in a radiator, and a liquid-phase refrigerant that has radiated heat in the radiator flows into an ejection refrigerant passage of the liquid ejector. A discharged refrigerant of a compressor that suctions the refrigerant that has flowed out of a low-pressure evaporator flows into an inflow refrigerant passage of the liquid ejector. An ejector adopted as the liquid ejector is one in which an ejection refrigerant is ejected from the ejection refrigerant passage to a gas-liquid mixing portion, and the ejection refrigerant is ejected on an outer circumferential side of the inflow refrigerant flowing from the inflow refrigerant passage into the gas-liquid mixing portion.

An air outlet cylinder of a bladeless fan is provided, having an air cylinder and a nozzle; the air cylinder is provided with an air inlet for receiving airflows, and an internal channel; the front-end sidewall of the air cylinder is provided with an opening extending longitudinally therethrough; the inner wall surface at each of two sides of the opening in the air cylinder is separately provided with a limiting groove extending longitudinally therethrough; the nozzle has a mouth part embedded in the opening, and two airflow guiding parts respectively embedded in the corresponding limiting grooves; multiple air outlet slits are longitudinally spaced on the mouth part; airflows received in the internal channel are sprayed from the air outlet slits. A bladeless fan having the air outlet cylinder is also provided.

An air outlet cylinder of a bladeless fan is provided, having an air cylinder and a nozzle; the air cylinder is provided with an air inlet for receiving airflows, and an internal channel; the front-end sidewall of the air cylinder is provided with an opening extending longitudinally therethrough; the inner wall surface at each of two sides of the opening in the air cylinder is separately provided with a limiting groove extending longitudinally therethrough; the nozzle has a mouth part embedded in the opening, and two airflow guiding parts respectively embedded in the corresponding limiting grooves; multiple air outlet slits are longitudinally spaced on the mouth part; airflows received in the internal channel are sprayed from the air outlet slits. A bladeless fan having the air outlet cylinder is also provided.

The disclosure provides a bladeless fan, which includes a fan body and at least three telescopic brackets. The fan body includes a base. A plurality of guide members each correspondingly arranged to one telescopic bracket are installed inside the base. The guide member is fixed to the base and provided with a through channel, a bottom of the base is defined with a through hole communicated with the through channel arranged along a height direction of the base, and an inner wall of the through channel is provided with a rubber layer. The telescopic bracket includes a support and a handgrip connected with the support, and the base is provided with a guide groove arranged along the height direction of the base, the handgrip is inserted into the guide groove, the support is installed in the through channel, contacted with the rubber layer.