41results about How to "Reduce structure size" patented technology

The invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine. The injector is actuated by an actuator and is connected to a fuel supply line via which fuel is supplied under system pressure. At least one injection opening can be opened or closed off by an injection valve member, which is activated by a control piston via a control chamber to which the control piston and a piston section of the injection valve member are exposed with respective pressure faces. The control piston is a valve piston of a control valve. The pressure face of the control piston and the pressure face of the piston section of the injection valve member are exposed to the control chamber at the same side. The control piston and the piston section of the injection valve member also enclose a further control chamber which is connected to a fuel return line when the control valve is open and to the fuel supply line when the control valve is closed.

The invention discloses a rocket ramjet wide-speed-range engine based on annular pressurization center body tail confluence. The engine comprises a center body, an air inlet channel, a combustion chamber with a concave cavity and a spray pipe. An embedded rocket in a conventional rocket ramjet engine is arranged on the outer side of the center body, the rocket gas and air are mixed in an annular mixing channel, and the contact area of rocket jet flow and the air is increased, so that the mixing distance of two air flows can be effectively shortened. Meanwhile, annular airflow is converted into central pipe flow through a central body contraction section at the spray pipe, the outlet area of the engine spray pipe can be reduced, and therefore the structural size of the engine is reduced, and the overall thrust performance of the rocket ramjet engine can be effectively improved by adopting the scheme.

The invention provides an electronic card holder assembly, a card taking structure and terminal equipment. The electronic card holder assembly comprises a card holder support, a connector, a card holder, an elastic locking part and a card slot. The card holder support is provided with a containing groove which is provided with an inserting opening. The connector is located in the containing groove. The card holder is used for bearing an electronic card and comprises a card holder body and a card holder cap, the card holder body can be inserted into the containing groove from the inserting opening to enable the electronic card to be connected with the connector, the card holder body comprises an inserting end used for being inserted into the containing groove and a pulling end arranged opposite to the inserting end, and the card holder cap is arranged at the pulling end. The elastic locking part is used for locking and fixing the card holder body into the containing groove. The card slot is formed in the card holder cap, and the card slot is used for allowing the outer card taking structure to be clamped in, so that when external force is applied to the card taking structure, the card holder body is disengaged from the elastic locking part and is pulled out from the containing groove. Accordingly, the structural size of the electronic card holder assembly can be reduced, and theinstalling space of the electronic card holder assembly on the terminal equipment is saved.

The invention discloses a fast solution method for a reachable state of a resource distribution system based on a binary decision diagram. The method comprises the following steps: modeling the resource distribution system by using a Petri network; representing a library in the Petri network by utilizing Boolean variables to obtain an identification vector; based on the identification variable, obtaining a feature function of an identification vector set M, and then performing compressed representation on a base station, an arc weight value and a state identification of a Petri network according to the feature function; solving a characteristic function of the transition enabling condition; and solving a reachable state set of the Petri network through mirror image calculation. According to the method, the state explosion problem existing in system model analysis can be relieved, the system reachable set can be quickly solved with small time and space, and the method has important significance for application of large-scale systems of the type.

The invention discloses a portable type uniformly-cooling first-aid medicine refrigerator, and belongs to the technical field of medical first-aid kits. The portable type uniformly-cooling first-aid medicine refrigerator mainly comprises a body which consists of a plurality of storage cabinets, a base and a cover; the base is in threaded connection with the lower part of the body; each of the storage cabinets comprises a connecting column, an outer frame, a partition plate, a sector drawer and a fixed plate; the inner part of each of the connecting columns is hollow; four averagely-distributedsplicing grooves are formed in the outer walls of the connecting columns; air outlet holes which are uniformly distributed are formed in the outer walls of the connecting columns; the outer frames pass through through holes and are connected with the fixed plates; the four partition plates are arranged and are separately and fixedly connected with the splicing grooves formed in the inner side andthe two sides of the outer frames; a circular ring arranged between the corresponding connecting column and each of the outer frames are averagely divided into four sector areas by the partition plates; the sector drawers are separately positioned in the sector area; and the two-sided partition plates are movably connected. The portable type uniformly-cooling first-aid medicine refrigerator disclosed by the invention has a simple structure, is convenient to carry and is suitable for extensive popularization.

The invention provides a card support assembly of an electronic card and terminal equipment. The card support assembly comprises a card support bracket, a card support and a detection mechanism, wherein an accommodating groove is formed in the card support bracket and comprises an insertion end and a tail end, the card support can be inserted into the accommodating groove from an insertion end, the detection mechanism is arranged in the accommodating groove and is arranged at the tail end, the detection mechanism comprises a detection terminal and a detection elastic piece, the detection terminal comprises a connection guide part and a contact part, the connection guide part is fixedly arranged on a main board of the terminal equipment and is electrically connected with the main board, thecontact part extends to the tail end of the accommodating groove, one end of the detection elastic piece is arranged on the card support bracket and is electrically connected with the main board, andthe other end of the detection elastic piece is arranged at one side, near to the insertion end, of the contact part. Therefore, the installation space of the card support assembly of the electroniccard on the terminal equipment can be reduced.

The inveniton relates to an electrical machine for a wind energy installation. The electrical machine (100) includes a stationary secondary part (21) which is self-excited or externally excited, a stationary primary part (22) with a primary winding element, and a rotatably mounted magnetic modulator, which modulates a magnetic flux density. The magnetic modulator (23) is arranged between the secondary part (21) and the primary part (23) or the primary part (23) is arranged between the secondary part (21) and the magnetic modulator (23).

The invention discloses an automatic type lifting door mechanism. The automatic type lifting door mechanism comprises a supporting plate, a first steel wire, a second steel wire and a firs slide door,wherein the top of the supporting plate is equipped with a first fixed pulley and a fourth fixed pulley; the bottom of the supporting plate is equipped with a second fixed pulley and a third fixed pulley; the supporting plate is equipped with a gas cylinder; the piston rod end of the gas cylinder is fixedly connected to a movable slide wheel; the head end of the first steel wire is connected to the top of the supporting plate; the first steel wire winds across the movable pulley and the first fixed pulley in sequence, and is fixedly connected to the top end of one side of the first slide door; the head end of the second steel wire is connected to the bottom end of the first slide door; the second steel wire winds across the second fixed pulley, the third fixed pulley and the fourth fixedpulley in sequence, and is fixedly connected to the top end of the other side of the first slide door; while the gas cylinder drives the movable slide wheel to move in a height direction of the supporting plate, the first steel wire and the second steel wire drive the first slid door to move in a height direction of the supporting plate. The automatic type lifting door mechanism avoids asynchronism of dual-gas-cylinder drive, so that two steel wires are not stranded together mutually.

The invention discloses a shearing machine capable of being fast adjusted. The shearing machine comprises a support, a shearing platform is arranged on the surface of the support, two guiding and fixing frames are arranged on the left side and the right side of the shearing platform, and guide grooves are formed in the two guiding and fixing frames. The two guide grooves are oppositely formed, a lifting plate is arranged in the two guide grooves, an upper cutter is arranged on the portion, between the two guiding and fixing frames, of the bottom of the lifting plate, and the upper cutter and the front side face of the cutting platform are used in cooperation for cutting. The portions, located on the two sides of the upper cutter, of the bottom of the lifting plate are connected with cam lifting mechanisms, the cam lifting mechanisms are arranged on a rotary shaft, the rotary shaft is connected with a power mechanism, a boss is further arranged on the rear side of the cutting platform, and the boss is sleeved with a locating sleeve. The shearing machine is small in size, stable in operating, high in cutting speed and high in efficiency.

The invention discloses a helicopter total distance control system which comprises a fixing shaft, a supporting base, a first fixing plate, a protective device and a reinforcing device, symmetrically-distributed control rods are arranged on the fixing shaft, symmetrically-distributed connecting rods are installed on the control rods, the connecting rods are connected with the first fixing plate. Symmetrically distributed connecting bases are arranged at the end of the fixing shaft, connectors are arranged at the bottoms of the connecting bases, the supporting base is located under the fixing shaft, penetrating holes allowing the connectors to penetrate through are formed in the surface of the supporting base, the protection device comprises fixing rings and fixing bolts, and the fixing rings are installed in the penetrating holes through the fixing bolts; the reinforcing device comprises a nut and an external thread; the helicopter total distance control system has the beneficial effects that the designed protective device is beneficial to installation of the fixing ring, and the through hole is protected through the fixing ring; and through the designed reinforcing device, the mounting stability of the fixed shaft is improved, and accurate operation of the control system is ensured.

The invention relates to a method for producing a smoking product from a tobacco material, wherein the tobacco material is treated using at least one extrusion process, which comprises compaction with an increase in pressure and temperature and a mechanical treatment and sudden flash drying of the material at an outlet of an extruder (1), wherein a heated process fluid (7) is supplied as a heat transfer medium to the tobacco material in the extruder (1) to supply process heat. The invention further relates to a device for producing a smoking product from a tobacco material using an extruder (1) which performs a compaction of a tobacco material with an increase in pressure and temperature and a mechanical treatment and sudden flash drying of the material at the extruder outlet, wherein the extruder (1) is associated with a heater (11), which heats a process fluid (7) that is supplied to the extruder (1) for supplying process heat as a heat transfer medium.

The invention relates to a method which serves for imaging polarimetry, wherein a chipless, passive transponder (1) which has a plurality of surface regions (T1-T9) having different polarimetric properties is illuminated fully polarimetrically by radar radiation (R), at least one polarization-encoded image (B1-B3) of the transponder (1) is generated using the radar radiation (R) reflected thereby,and the different surface regions (T1-T9) of the transponder (1) in the polarization-encoded image (B1-B3) can be recognized by their at least one polarimetric property. A passive, chipless transponder (1) has at least two surface regions (T1-T9) having different polarimetric structures (2, [alpha]).

The invention provides a low-smoke halogen-free cable three-layer co-extrusion machine head which comprises a machine frame and a machine shell, a conical through hole is formed in the machine shell, a middle-layer feeding port and an inner-layer feeding port are formed in the side wall of the machine shell, an outer die head is connected to the end, penetrating out of a conductor, of the machine shell, an outer-layer die and a forming cavity are inserted into the outer die head, an outer-layer feeding port is formed in the outer circle side of the outer die head, and an inner-layer feeding port is formed in the outer circle side of the outer die head. A middle-layer mold and an inner-layer mold are sequentially inserted in the machine shell, an outer-layer mold is arranged, an outer-layer runner, a middle-layer runner and an inner-layer runner are arranged on the outer sides of the middle-layer mold and the inner-layer mold respectively, and an annular outer-layer discharging port, a middle-layer discharging port and an inner-layer discharging port which are communicated with the forming cavity are formed in the ends, close to the forming cavity, of the outer-layer mold and the inner-layer mold respectively. The outer-layer feed port is communicated with the outer-layer discharge port through an outer-layer runner, the middle-layer feed port is communicated with the middle-layer discharge port through a middle-layer runner, and the inner-layer feed port and the outer-layer feed port are communicated with the inner-layer discharge port through an inner-layer runner. The three-layer co-extrusion machine head for the low-smoke halogen-free cable, provided by the invention, has the function of solving the problem that the production speed of the existing low-smoke halogen-free cable is too slow.