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332results about How to "Reduce overall form factor" patented technology

Plug-in type balance valve

The invention relates to a plug-in type balance valve which comprises a valve body, a one-way valve core and a balance valve core, wherein a first oil opening, a second oil opening and a third oil opening are arranged on the valve body; the one-way valve core is arranged at the second oil opening and pushed by a first spring to maintain the trend of axial upward shift; the balance valve core is installed in the valve body and can be matched with a valve opening of the one-way valve core, and a second spring is arranged in a spring cavity of the valve body; the upper part in the balance valve core is provided with an axial passage and a first damping hole; the middle position of the balance valve core is provided with an axial convex shoulder; an annular notch is arranged on the periphery surface of the axial convex shoulder; the inner wall of the valve body is provided with an annular inner shoulder blade; an oil inlet cavity is formed among the annular notch, the inner wall of the valve body and the annular inner shoulder blade; and the third oil opening is communicated with the oil inlet cavity by a second damping hole on the side wall of the valve wall. The balance valve core and the one-way valve core are in an integral structure, and the structure is simple; the balance valve core and the one-way valve core are relatively independent on the relative position relationship, the assembly is convenient, and the requirements on heat treatment and materials of the balance valve core are lowered.
Owner:NINGBO HANSHANG HYDRAULIC

Authentication and communication method of mobile terminal without card, server and mobile terminal without card

The invention discloses a card-free mobile terminal authentication and communication method. The physical object of the traditional SIM (Subscriber Identity Module) card is integrated in an integrated circuit of a card-free mobile terminal, and the card-free mobile terminal stores the subscriber identity information of at least one telephone number in a readable manner. The authentication and communication method comprises the following steps of: authenticating the authentication information sent by the card-free mobile terminal actively and corresponding to the telephone number; and communicating and interacting with the telephone number corresponding to the authentication information after the authentication is passed. The invention also provides a server and a card-free mobile terminal accordingly. Therefore, the card-free mobile terminal can realize communication without SIM card, and the subscriber identity information of more than one telephone number can be stored to realize one machine with more numbers. The subscriber can also modify the authentication information corresponding to the telephone number, so that the operation of the subscriber is more convenient.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Self-powered ultrasonic scale removal tube cleaner

The invention discloses a self-powered ultrasonic scale removal tube cleaner. The self-powered ultrasonic scale removal tube cleaner comprises a body, and an ultrasonic generation apparatus, an electromagnetic induction power generation apparatus, a power supply apparatus and a protection apparatus, which are arranged on the body, wherein the body comprises a barrel and a cone; the ultrasonic generation apparatus comprises an ultrasonic generator; the electromagnetic induction power generation apparatus comprises a transmission connecting rod, an induction coil and a converter; the power supply apparatus comprises a packing cup and an impeller with a runner; and the protection apparatus is a metal protection cover, and the metal protection cover is provided with a leak flow hole. The tube cleaner is adopted as a carrier to be combined with the ultrasonic scale removal apparatus, so that the ultrasonic scale removal effect is more remarkable than the scale removal effect by only adopting the tube cleaner; and meanwhile, the self-powered ultrasonic scale removal tube cleaner carries a self-powered power generation apparatus, the automation degree is relatively high, scales are automatically removed, and the tube cleaner is only required to be transmitted and received by a tube cleaner receiving and transmitting barrel. Compared with a chemical tube cleaning way, the problem of changing the water quality is avoided, the phenomenon that a great amount of scales are dropped is avoided, and the tube cleaner plugging phenomenon is avoided.
Owner:SOUTHWEST PETROLEUM UNIV

Magnetic latching relay capable of resisting short-circuit current

The invention discloses a magnetic latching relay capable of resisting a short-circuit current. The magnetic latching relay comprises a magnetic circuit system, a contact system and a push mechanism, wherein a movable spring part comprises a movable contact, a movable spring plate and a movable spring lead-out plate; the movable spring lead-out plate is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate; a fixed spring part comprises a fixed contact, a fixed spring plate and a fixed spring lead-out plate; the fixed spring lead-out plate also is arranged at one side, departing from the moving contact, in the thickness direction of the movable spring plate, so that the direction of current flowing through the movable spring lead-out plate is opposite to that of the current flowing through the movable spring plate. According to the magnetic latching relay, the electro-dynamic repulsion force generated by single short-circuit current between the movable contact and the fixed contact can be resisted by electromagnetic repulsion force generated by formed double short-circuit current on the movable spring plate on the basis of not increasing the overall dimension of a product or not increasing the power consumption of a coil control part, so that the closing pressure of the movable contact and the fixed contact is greatly improved, the short-circuit current is resisted and the requirements of the product on simple, compact and small structures are met.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS

Two-stage jet nozzles series super-magnetostrictive jet servo valve and operating method thereof

InactiveCN102242742AReliable micro-displacement amplificationEasy to adjust magnificationServomotor componentsSpray nozzleAerospace engineering
The invention relates to a two-stage jet nozzles series super-magnetostrictive jet servo valve and an operating method thereof, which belong to the field of a hydraulic servo control technique. The two-stage jet nozzles series super-magnetostrictive jet servo valve provided by the invention comprises an upper end cover (4), a lower end cover (26), a super-magnetostrictive rod (14), an output rod (21), a coil skeleton (8), a polarization magnetic filed generating unit and a driving magnetic field generating unit, wherein the upper end cover (26) is provided with a left valve core installation cavity (45) and a right valve core installation cavity (46) which are symmetrical relative to the axis of the output rod; a group of valve core components are respectively installed in the left valve core installation cavity (45) and the right valve core installation cavity (46); and wedge-shaped amplification mechanisms are formed in the contact positions of the output rod (21) and the left and the right valve core installation cavities. The two-stage jet nozzles series super-magnetostrictive jet servo valve provided by the invention has the advantages of great pressure gain and rapid response, and the driving part has the obvious characteristics of small heat radiation, adjustable polarization magnetic filed, intelligentized effect and the like.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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