56results about How to "Small and compact size" patented technology

A vacuum cleaner having an improved structure capable of enhancing suction performance includes a suction unit provided in a main body, the suction unit including an impeller disposed to suck air by rotating about an axis thereof, and a diffuser disposed to guide air discharged from the impeller. The diffuser includes an inner casing, an outer casing disposed to be spaced apart from an outer circumference of the inner casing and to form a path through which the air discharged from the impeller flows, and a plurality of vanes disposed at the inner casing to guide the air discharged from the impeller to the path, and the plurality of vanes protrude toward the outer casing to cross at least a part of the path.

A pump for a fluid which can be blood has a stator housing and a rotor hub with leading and trailing portions and an intermediate portion disposed therebetween. At least one impeller blade at the leading portion drives circumferential and axial components of a flow into a pump annulus or intermediate pathway portion. At least one stator blade extends radially inward from the stator housing within the intermediate pathway portion and is configured to reduce a circumferential component of the flow.

A rotordynamic pump for delivering continuous flow of fluids, such as blood, is provided. In one embodiment, the pump includes a stator housing having an inlet and an outlet. A rotor hub is disposed within the stator housing having a first, mixed-stage impeller and a second, axial-flow stage impellers. One or more stator vanes and extend radially inwardly from the stator housing. In one particular embodiment, the second stage impeller is disposed nearer to the outlet than to the inlet. The stator vanes may include a first set of stator vanes disposed between the first and second stage impellers, and a second set of stator vanes positioned between the second stage impellers and the outlet.

A method and equipment for dimensional measurement of a micro part based on fiber laser with multi-core fiber Bragg grating probe are provided, wherein a multi-core FBG probe with FBGs (12,29) inscribed in the core or cores out of the center of the multi-core fiber is used to transform the two-dimensional or three-dimensional contact displacement into the spectrum shifts with a high sensitivity. At the meantime, the FBGs in the multi-core FBG probe (12,29) work as the wavelength selection device of the fiber laser, the wavelength of the fiber laser will change thereby. So the contact displacement is finally converted into the wavelength change of the fiber laser. The method and equipment have the advantage of high sensitivity, low probing force, compact structure, high inspecting aspect ratio and immunity to environment interference.

A demolding mechanism of a plastic bottle cap mold provided on a movable portion of the plastic bottle cap mold; the demolding mechanism comprises a supporting and place-giving device; the supporting and place-giving device is disposed corresponding to cores in the movable portion which are used for demolding; each of the cores is fixed at a molding position during injection of a bottle cap and retreats during demolding of the plastic bottle cap mold in order to free the molded bottle cap. A demolding method achieved by the above demolding mechanism is also provided.

A premix burner for a heat generator has partial cone shells (5) which make up a vortex generator, and which encompass a conically widening vortex chamber (6) and mutually define tangential air inlet slots (7), and also with feeds for gaseous and/or liquid fuel, of which at least one is arranged along the air inlet slots (7) on the partial cone shells (5), and at least one other is arranged along a burner axis (A) which centrally passes through the vortex chamber (6). At least n partial cone shells (5) encompass the vortex chamber (6), and define n air inlet slots (7), with n≧3, preferably n≧5, the n air inlet slots (7) each have at least a maximum slot width (10) which is equal to or larger than that slot width (10) which a generic type premix burner (1) of the same size and dimensioning with m≦2 partial cone shells (5) and m air inlet slots (7) has.

A hydraulic control system for a vehicular drive system including a hydraulically operated belt-and-pulley type continuously variable transmission and a hydraulically operated frictional coupling device engaged for running of a vehicle, the hydraulic control system including: a first solenoid valve for regulating a belt-tensioning hydraulic pressure for tensioning a belt of the transmission, a second solenoid valve for regulating a transient coupling hydraulic pressure to be applied to the frictional coupling device in the process of an engaging action, a line-pressure regulating valve for regulating a line pressure used for hydraulically operated devices of the mechanism, and a hydraulic-circuit switching device operable to apply a control pressure of the second solenoid-operated valve to the line-pressure regulating valve after the frictional coupling device has been placed in a fully engaged state, and to apply a first control pressure of the first solenoid-operated valve to the line-pressure regulating valve while the frictional coupling device is in the process of the engaging action.

Machine for punching holes through a longitudinal sheet or wheel rim passing in a horizontal direction, using punches, and also for cutting said sheet to obtain sheet portions or pieces. The machine is characterized in that the punching and cutting operations are performed by a single power unit, such as an oleohydraulic cylinder (2) secured to a frame and positioned at the top in a vertical direction. The shaft of said cylinder is connected to a cutter-holding carriage (4) which, as it moves downwards to cut the sheet (10), brings with it an upper support means (19) that forms part of a punching device (6), the punches of which are guided on a lower front carriage (8) that also forms part of the punching device (6).

An antenna system is provided including a rapidly expandable-collapsible housing which mounts two sections of fabric material each having an array of antenna elements formed of electrically conductive material such as copper thread embedded in the fabric sections. The fabric sections are movable between the expanded and collapsed positions with the housing and are located in different planes.

The invention relates to a needle head cleaning mechanism. An installing plate is arranged on the bottom plate through supporting columns. A set of stepping motor is arranged on the left side of the lower portion of the installing plate, and a set of stepping motor is arranged on the right side of the lower portion of the installing plate. A material coiling assembly is arranged at the upper end of a spindle of each stepping motor. Rubber belt rolls are arranged on the left side and the right side of the upper portion of the installing plate through rubber belt fixing clamping claw assemblies correspondingly. A clamping claw air cylinder is arranged in the middle of the upper portion of the installing plate. Foam cotton is symmetrically arranged on two clamping claws of the clamping claw air cylinder through foam cotton fixing blocks. A detection assembly capable of detecting the position and the height of a needle head is arranged at the upper portion of the installing plate. Two sets of front wheels and two sets of rear wheels are arranged at the upper portion of the clamping claw air cylinder, and the foam cotton is located between the corresponding front wheels and the corresponding rear wheels. A rubber belt on each set of rubber belt roll sequentially passes the corresponding rear wheels, the corresponding foam cotton and the corresponding front wheels and is bonded to the corresponding material coiling assembly. The clamping claw air cylinder drives the foam cotton to move, the two foam cotton sets clamp the needle head, the needle head is slowly drawn out upwards, and the rubber belts between the two foam cotton sets clean away foreign matter on the needle head at the same time.

The invention provides a neodymium-doped langasite self-frequency-doubling ultra-short pulse laser. The self-frequency-doubling ultra-short pulse laser is used for directly outputting fundamental-frequency laser and doubled-frequency laser, and comprises a laser self-frequency-doubling crystal which serves as a gain medium and a frequency-doubling crystal of the laser; the laser self-frequency-doubling crystal is an Nd ion-doped La3Ga5SiO14 crystal. The laser provided by the invention has high operability and stability, and has the advantages of compact and small structure, simple system, relatively low cost, fundamental-frequency laser and double-frequency ultra-short pulse laser output, high repetition frequency, pulse width of pico-second order, high light beam quality, and the like, is widely applied to the fields of display, medical treatment, information transmission, scientific research and the like, and has a very good application prospect and a commercial value.

The invention provides a soft-clad lithium battery module applied to an electric vehicle, the module comprises a soft-packed lithium battery, Side panel, foam, Heat sink, battery holder, Connecting tabs, bus tabs, fastening parts and other structures. The use of unique safety-type tabs improves electrical connection safety and reduces battery positioning accuracy requirements. The flexible busbarcan be bent freely to enlarge the use condition of the connecting piece, the module expansion can be realized relatively easily by using the modular bracket, the module structure is simplified by using the composite radiating plate, and so on, so that the soft-packaged lithium battery module has the advantages of compact structure, safety, stability, easy expansion and higher energy density.

The present room heater includes a housing supporting internal electric heat sources. The housing surrounds the heat sources with an interconnected serial series of chambers made from heat-conducting material. Air is motivated by an electric fan through the series of chambers to effect stepped uniform heating, as well as optimal heating as the air moves through preheat chambers and then closely past the heat sources to an outlet opening. The chambers are made using modular and relatively simply-made components that interfit to form the chambers, such that multiple configurations are possible, including stacked and laterally-adjacent versions. The modular components include a flat part, hat-shaped part, and U-shaped part that interfit to define a first elongated chamber and a second elongated chamber that wraps onto three sides of the first elongated chamber, the hat-shaped part having end-located notches to permit flow of air between the chambers.

An adapter configured to connect a switch device to a data bus, wherein the switch device has a box-like body which houses a switching unit for switching an electric circuit, wherein the adapter includes a case having a first opening and a second opening and an electronic control unit housed in the case and having a first connection element adapted to be connected to the switching unit through the first opening and second connection element adapted to be connected to the data bus through the second opening to convert the electric signals generated by the switching unit into data signals and vice versa.

A self-closing device is for sliding doors of the type including at least one sliding leaf (2) which is hung from an upper profile (3). The device (1) includes a drive belt (10) configured to be joined to the sliding leaf (2); a closing pulley (20), provided with an elastic device (30), which is arranged on a first rotation axis (4) integral to the upper profile (3) and which engages with a first end (11) of the drive belt (10); and a brake pulley (40), provided with a stop (50), which is arranged on a second rotation axis (5) integral to the upper profile (3) and which engages with a second end (12) of the drive belt (10) opposite to the first end (11). The rotation movement of both pulleys (20, 40) is connected by the drive belt (10).

The invention discloses a two-way controllable ratchet clutch transmission device. An output shaft sleeve is sleeved on a fixing shaft in a hollow mode, an input gear is arranged on the output shaft sleeve, a plurality of tooth sockets are arranged on an inner periphery of the input gear, one or more forward ratchets and reverse ratchets are arranged inside the tooth sockets in a fit mode, forward ratchets and reverse ratchets can rotate round ratchet shafts of forward ratchets and reverse ratchets, one ends of forward ratchets and reverse ratchets can be clamped in one tooth socket of the input gear or separated from the tooth socket, a shifting sleeve which can move axially is arranged on the fixing shaft, the shifting sleeve is in inclined plane fit with lower ends of reverse ratchets, when the shifting sleeve moves axially, reverse ratchets are pushed to rotate round ratchet shafts of reverse ratchets, upper ends of reverse ratchets are exposed out of holes of the output shaft sleeve and clamped in tooth sockets of the input gear or rotate to holes of the output shaft sleeve. According to the device, reverse transmission is achieved through ratchet opening and closing, gears are not required to move axially, the structure of the device is more compact and smaller than that of a traditional primary/secondary shaft shifting system, the sliding and reserve transmission are achieved through a set of forward ratchets and a set of reserve ratchets, the drive displacement is small and the device is simple and reliable.

The invention relates to the field of fibers, and discloses an integrated SC fiber connector comprising an adapter, a sleeve, an insertion core, an insertion core tailstock and a stop seat, wherein the adapter is connected with the stop seat to form a cavity. The sleeve, the insertion core and the insertion core tailstock are installed in the cavity. Through adoption of the technical scheme, the problem of space inside a communication module can be effectively solved, and processing and manufacturing cost is lower.