102results about How to "Increase the projected area" patented technology

The invention relates to a centrifugal pump, especially for blood, comprising a pump rotor which is arranged in a rotational manner and without a bearing in a liquid-tight and gas-tight closed housing, except for at least one inlet opening and at least one outlet opening. The rotor is also the rotor of a drive motor. The rotor is symmetrical with respect to the centre plane thereof and comprises an upper and a lower covering. The rotor and/or the pump housing are formed in such a way that the axial distances between the upper and the lower coverings and the upper and lower housing walls are smaller in the radially inner region of the rotor than in the radially outer region. In the radially inner region of the rotor, each lateral rotor chamber comprises a flow-restrictor gap which, when in operation, influences back flows oriented in a radially inward manner in the lateral rotor chambers, such that during an axial deflection of the rotor above and below the rotor, various pressure distributions appear, enabling forces acting upon the predominant surface of the coverings to be produced, the forces bringing about an axial stabilisation of the rotor and acting, in the same manner, against tilting of the rotor inside the housing.

A fairing system may be assembled about a rotor of a rotorcraft to present an aerodynamically quasi-static region that rotates in an airstream, as well as certain extensions that sweep through the airstream as the rotor hub passes through the air. A spherical interface between the extensions on the rotor hub fairing and the base or root portion of each blade fairing provides three degrees of freedom permitting lead-lag, flapping, and blade pitch pivoting in the blade, while still maintaining an aerodynamic profile that will minimize drag.

The invention provides an improved high power LED streetlight with larger irradiated area and more hermetical sealing. The streetlight comprises a light source module, namely an upper casing body module, a light distribution module, namely a lower casing body module, and a casing body opening and closing module, wherein, the light source module is composed of a driving power source, a high power LED and an upper casing body, and the high power LED is installed on the upper casing body and connected with the driving power source; the light distribution module is composed of a reflection shade, a glass shade, a seal ring with a glass shade and a lower casing body, and the glass shade with the glass shade and the reflection shade are arranged on the lower casing body in sequence; the casing body opening and closing module is composed of a locking piece and a supporting piece, the locking piece connects two ends of the upper and the lower shell bodies as a whole and ensures the upper casing body rotate around a shaft, and the supporting module is connected with the other two ends of the upper and the lower shell bodies and ensures the upper and the lower shell bodies are closed or opened; and when the upper and the lower shell bodies are closed, the high power LED on the upper casing body is positioned at the middle part of the reflection shade which is on the lower casing body. The streetlight is mainly used for lighting a street.

A cost-reduced, downsized automatic opening/closing apparatus for vehicle is achieved by reducing the number of components thereof. A case of a driving unit is provided with a drum housing portion, and a driving drum is rotatably accommodated in the drum housing portion. An electric motor is attached to the case, and the driving drum is driven for rotation by the electric motor. A cable connected to a sliding door is wound around the driving drum. By rotation of the driving drum, the sliding door is opened and closed as being drawn by the cable. The case is provided with a substrate housing portion integrally with the drum housing portion, and a control substrate for controlling an operation of the electric motor is accommodated in the substrate housing portion.

A driving apparatus comprises a movable portion having movable side guide portions; a base portion having fixed side guiding portions; a vibrator having a piezoelectric element; a friction member provided at the other of the movable portion and the base portion; a pressing portion, provided at the one of said movable member and the base portion, for applying pressing force to the vibrator; and rolling portions sandwiched between the movable side guide portions and the fixed side guide portions. The movable side guide portions and the fixed side guide portions extend with a predetermined length in a moving direction in which the movable portion is moved with respect to the base portion, and one of movable side guide portions is positioned within spacing in a direction orthogonal to the moving direction of a pair of movable side guide portions of the movable side guide portions.

The invention discloses a product and waste separation device of a plastic piece. The device comprises a cutting mechanism, a waste material falling mechanism and a product falling mechanism, whereinthe cutting mechanism is provided with a cutter which can cut off a boundary line of products and waste materials; a working table is arranged below the cutting mechanism, a waste material falling port is formed right under the cutter, a sliding plate is arranged on the waste material falling port, a plurality of product containing tanks for containing products are formed in the sliding plate, theproduct containing tanks are arranged in an annular array, a radial hole allowing the waste materials to penetrate and fall into the waste material falling port is formed in the sliding plate, and all the product containing tanks are connected and gathered into one point in the horizontal direction of the radial hole; the sliding plate is connected to the working table through a horizontal sliding rail, the waste material falling port is formed in one end of the horizontal sliding rail, the other end of the horizontal sliding rail is provided with a product falling port, and the working tableis provided with a mechanical arm for transferring the products in the product containing tanks to the product falling port. By adopting the method disclosed by the invention, the separation of the products and the waste materials is realized efficiently, and the products are not easy to mix during material separation.

The invention discloses a projection combining type 3D printing method and a 3D printing device. The 3D printing method comprises the following steps that a to-be-printed 3D model is subjected to slicing treatment firstly, then each layer is sliced according to equal proportions based on the size, the length and the width of the 3D model, and a plurality of rectangular arrays with the same size and arranged in sequence are formed; image data of all layers of the to-be-printed 3D model are obtained; rectangles are arranged according to the sequence of the rectangular arrays in a set time period, and the rectangles of the rectangular arrays are gradually exposed until images of all the rectangles of the layer are exposed; and after the images located on the layer are exposed, an image exposing plane declines to the printing height of a next layer, images of the next layer are exposed, and layer-by-layer printing is performed until product printing is completed. By means of the projectioncombining type 3D printing method and the 3D printing device, the problem that the size of a product printed by 3D printing equipment adopting a digital light processing technology is not big enoughis solved.

A golf club head includes a striking face having a face center, a bottom portion, a top portion including an exterior surface, a hosel including an imaginary vertical hosel plane, a forwardmost point, and a rearwardmost point. In an imaginary vertical plane perpendicular to the hosel plane and passing through the face center, the exterior surface includes a path having a first point and a second point rearward of the first point. An imaginary infinite straight line passes through the first point and the second point, but does not penetrate the exterior surface. A segment of the imaginary straight line is delimited by the first point and the second point. A maximum distance between the segment and the exterior surface of the top portion is no greater than 0.70 mm and a distance between the first point and the second point is no less than 22 mm.

The invention discloses a vegetation scene rendering method. The vegetation scene rendering method comprises steps that for each facet of a to-be-rendered object in a vegetation scene, vertex offset is carried out according to a principle that a vertical distance to a bottom portion of the facet is in direct proportion to offset amount of vertexes, and an offset direction is perpendicular to a plane of the facet; the facet after offset is utilized to render the to-be-rendered object. The method is advantaged in that a facet sense problem during scene rendering can be avoided, and rendering trueness is improved.

The invention relates to a gear mechanism based self-rotation blade impeller. The gear mechanism based self-rotation blade impeller is mainly formed by a rotating cross support, four blades, a center shaft, a base, a primary bevel gear, four secondary bevel gears, eight transmission gears and four transmission shafts.

The invention discloses a fish feeding boat, and belongs to the field of fishery. The fish feeding boat is composed of a first motor, a stirring bucket, a boat outer shell, a propeller, a solar cell panel, a storage battery, an air pump, a controller, a feeding control device, a second motor, a feed put-in device and a third motor. The stirring bucket can contain various types of feed or medicines, the stirring shaft can evenly mix the feed and medicines, and the labor intensity of workers is well relieved; a feeding control plate can be moved left and right through an electromagnet and a spring, the feeding and stopping of the feed are realized, and the friction to the feeding control plate during moving can be relieved through a rolling body; a first cylinder moves to compress the feed,the compressed feed is located in a compression blocking hole, then a second cylinder moves, the compressed feed is projected to a far place with aid of the movement of a second piston rod, the compressed feed can enlarge the projection area, and multi-area feeding is realized.

The invention discloses an oil screen used for a range hood. The oil screen comprises a frame and multiple blades arranged in the frame. Each blade is arranged in the width direction of the frame. All the blades are arranged in parallel in the length direction of the frame to form a grating shape. The oil screen is characterized in that the blades include at least two first blades located in the middle and at least two second blades located on the two sides of the first blades; and the air inlet area, at the positions of the second blades, of the oil screen is larger than the air inlet area, at the positions of the first blades, of the oil screen. The invention further discloses the range hood applying the oil screen. The blades of the type are arranged, the angle of the blades on the two sides is large, the angle of the blades in the middle is small, the interval of the blades on the two sides is large, the interval of the blades in the middle is small, and therefore the negative pressure moves towards the two sides, and the lampblack suction effect is improved.

The invention relates to a support table radio frequency identification read-write device, comprising a read-write device carrying main body and a radio frequency label read-write platform; a radio frequency identification antenna is arranged in the read-write device carrying main body; the radio frequency label read-write platform is positioned above the read-write device carrying main body and is used for placing an electronic label; a limiting support table is arranged at the upper surface of the radio frequency label read-write platform; when being moved, the electronic label is limited by the limiting support table. According to the support table radio frequency identification read-write device adopting such a structure, the mistuning of response frequency caused by the direct contact between the electronic label and the surface of the read-write device is reduced; the limiting platform can be arranged according to the size of the electronic label; the positions of the radio frequency identification antenna and the limiting support table can be adjusted, so the electronic label works in an optimized near field radiation area; the structural parameters of the limiting platform are set according to the size of the electronic label, and meanwhile, the projection area of the electronic label at the reader-writer device antenna is maximum; the electronic label can be conveniently fast taken down due to an easy-to-take support part.

The invention provides a gas-liquid-solid stirring device. The gas-liquid-solid stirring device comprises a drive piece, a rack and a stirring mechanism, the drive piece, the rack and the stirring mechanism are sequentially arranged, wherein the stirring mechanism comprises a stirring barrel and a stirring shaft, the stirring shaft is axially provided with paddles, the rack comprises a trapezoid rib plate used for installing of a motor and a rectangular frame used for installing of a speed reducer, the top of the stirring shaft is connected with the speed reducer, the bottom end of the stirring shaft is not connected with the bottom of the stirring barrel, the stirring shaft is a hollow shaft and is internally provided with a gas guide tube extending from the top end to the tail end of the stirring shaft, a first paddle and a second paddle are sequentially axially arranged on the stirring shaft from bottom to top, and the bottom end of the first paddle is connected with a gas distribution cover with an elastic self-closing jet exhaust. The novel design and layout of the paddles are adopted, the projected area of the rotating circumference of the paddle on the horizontal plane is increased, a bubble is disintegrated more effectively, the upward diffusion speed of the gas is slowed down, the contact area of gas and solid is increased, the reaction time of gas in the liquid is prolonged, the reaction efficiency of the gas is improved, and the elastic self-closing jet exhaust prevents the liquid from flowing backward into the gas guide tube.

The invention discloses a detachable cleaning device for a ship, and aims at providing the detachable cleaning device which is simple in structure, convenient to use and excellent in cleaning effect for the ship. The cleaning device comprises a main frame, and the left and right sides of the main frame stretch outward and are both provided with side plates, wherein the front end of the main frame is provided with a filter screen, the upper end of the main frame is provided with a main vertical pipe the lower end of which is fixedly connected to the middle part of the main frame, and meanwhile, the upper end of the main vertical pipe is hinged to a ship head; during cleaning, the bottom of the main frame and the bottom of the filter screen are both submerged in water. The detachable cleaning device for the ship is applied to the technical field of operation tools at sea.

The invention provides a light guide device comprising a first stage rotary reflection component, a second stage rotary reflection component and a rotating control component. The rotating control component is used for controlling the first stage rotary reflection component and the second stage rotary reflection component to rotate around the own rotary shafts respectively or controlling the first stage rotary reflection component to rotate with the second stage rotary reflection component, and the rotary shafts are perpendicular to each other and are crossed in a crossed point; the optical axis of a final light beam and the optical axis of an incident light beam are perpendicular to the optical axis of a first reflection light, and the optical axis of the final light beam and the optical axis of the first reflection light penetrate the crossed point. The light guide device is convenient to install and is capable of being adaptive to the change of positions of the light source or target flexibly and positioning and tracking the light source or target, the light source acquiring efficiency is improved, and light weakening is avoided effectively.

The invention discloses a steering gear control system and method of a flapping wing aircraft vehicle. The steering gear control system includes a flapping wing reversing detecting module, a central processing unit and a steering gear control module, wherein the flapping wing reversing detecting module is used for detecting flapping wing reversing information of the flapping wing aircraft vehicle,and when a flapping wing is detected to locate in the lowest position and the highest position, and different reversing signals are sent to the central processing unit; according to the reversing signals from the flapping wing reversing detecting module, a steering gear rotating control instruction is generated by the central processing unit and transmitted to the steering gear control module; and the steering gear control module is used for controlling steering gear rotating of the flapping wing air craft vehicle according to the steering gear rotating control instruction of the central processing unit. According to the steering gear control system and method of the flapping wing aircraft vehicle, during flight of the flapping wing aircraft vehicle, negative lift force brought by upwardflapping the flapping wing is effectively lowered, and forward pushing force can be significantly increased.