187results about How to "Compact layout" patented technology

The invention discloses an antenna structure applied to a mobile phone with metal rings and an all-metal rear housing. The antenna structure applied to the mobile phone with the metal rings and the all-metal rear housing comprises the all-metal rear housing, an antenna holder, an antenna pattern on the antenna holder, a connecting terminal of feeding points, the metal rings serving as an antenna loop and an antenna loop connector on the holder. The mobile phone with the metal rings and the all-metal rear housing comprises a total of three antennas, namely, a main antenna MAIN, an auxiliary antenna AUX and a GPS (Global Position System)/WLAN (Wireless Local Area Network) antenna. A radiation plate of the main antenna MAIN comprises radiation sheets and a metal ring. A feeding point of the main antenna is arranged on the radiation plate, and the radiation plate is in contact with the metal ring to divide the metal ring into a left end part and a right end part. A radiation plate of the auxiliary antenna AUX and the GPS/WLAN antenna comprises radiation sheets and a metal ring. The metal ring is divided into two parts by a grounding point. The antenna structure applied to the mobile phone with the metal rings and the all-metal rear housing is simple in structure, compact in layout and capable of greatly saving antenna space and achieving integrated design of the metal ring and the metal rear housing of the mobile phone to meet the special needs of appearance.

A circuit including an SRAM cell with a set of vertical nanowire transistor columns is provided. Each member of the set includes a vertical nanowire transistor and at least one member of the set is a vertical nanowire transistor column including two vertical nanowire transistors in series. The set can consist of four vertical nanowire transistor columns, a first column including two n-type vertical nanowire transistors, a second column including two n-type vertical nanowire transistors, a third column including one p-type vertical nanowire transistor and a fourth column including one p-type vertical nanowire transistor. EDA tools for such circuits are also provided.

The invention relates to an integrated small-size laser gyroscope inertia measurement device which comprises a case, a cover plate and a body assembly, wherein the body assembly is mounted in the case and is sealed by the cover plate; the body assembly comprises a body seat, three laser gyroscopes, three quartz accelerometers, a functional circuit board and shock absorbers; the body seat is of a hexahedron structure; a plurality of cavities are formed in one side close to the hexahedron structure; the three laser gyroscopes are respectively mounted in the cavity a, the cavity b and the cavity c; the three quartz accelerometers are mounted in the cavity d; the cavity e is formed in the other side close to the hexahedron structure and is used for holding an accelerometer circuit board, a temperature control circuit board, a computer circuit board and a signal transferring circuit board; a power circuit board is mounted on one side wall of the hexahedron structure of the body seat; the shock absorbers are mounted at eight vertexes of the hexahedron structure of the body seat. The measurement device is compact and reasonable in whole layout, novel in style, small in size and light in weight, and has high shock absorption and impact prevention performance.

A variable speed front differential assembly for a vehicle is provided including a first side shaft, a second side shaft, and an input shaft. An offset differential case houses a differential mechanism engaging the first side shaft and the second side shaft. A speed selection assembly is movable from a first speed position to a second speed position. A speed reduction assembly is mounted adjacent the offset differential case. The speed selection assembly directly engages the offset differential case housing when in the first speed position such that a 1:1 drive ratio is achieved. The speed selection assembly engages the offset differential case through the speed reduction assembly when in the second speed position such that an increased drive ratio is achieved.

The invention discloses a forest fire-fighting robot achieving soil throwing and fire fighting by using local materials and a method. The robot solves the problems that fire-fighting equipment in theprior art cannot enter a fire scene, or cannot save energy and is not environmentally friendly, and has the beneficial effect of being good in fire-fighting ability. According to the scheme, the forest fire-fighting robot achieving soil throwing and fire fighting by using local materials comprises a vehicle body, a soil crushing mechanism, a soil excavating mechanism and a soil throwing mechanism,wherein a traveling mechanism is arranged on the bottom of the vehicle body, the soil crushing mechanism is arranged on the vehicle body so as to crush soil blocks, the soil crushing mechanism is provided with a soil discharging opening, the soil excavation mechanism is supported through the vehicle body, the soil excavation mechanism can excavates soil and transports the soil to the soil crushing mechanism, the soil throwing mechanism is arranged on one side of the soil discharging opening of the soil crushing mechanism, and the soil throwing mechanism can rotate, so that soil bodies are thrown to fire sites of the forest.

The invention relates to an in-situ test device for mechanical properties of high-temperature and high-frequency materials, which belongs to the technical field of material testing machines and precision instruments. It mainly consists of static tension/compression-low cycle fatigue loading module, in-situ monitoring module, temperature loading and monitoring module, static bending loading module, ultrasonic fatigue loading module and position switching mechanism of ultrasonic fatigue and static bending loading module. In the present invention, components such as transducers, horns and probes are used to realize high-frequency loading on the test piece, high-frequency servo hydraulic cylinder components are used to load tension/compression loads and low-frequency alternating loads, and halogen heating lamps are used to apply high temperature Load, and measure the strain of the specimen in real time through the non-contact measurement method through the in-situ monitoring module. The invention has a simple structure and a compact layout, can realize composite loading of bending ultrasonic fatigue and tensile load, and can be coupled with the temperature field, and can more realistically simulate complex working conditions of materials in service in key fields such as aviation and aerospace under the action of high-temperature and high-frequency alternating loads. condition.

The invention relates to a small-sized substrate integrated waveguide band-pass hybrid ring, which comprises a first metal copper-clad layer, a medium layer and a second metal copper-clad layer sequentially stacked from top to bottom, wherein the first metal copper-clad layer comprises a substrate integrated waveguide upper surface area, four ways of microstrip lines located on two sides of the substrate integrated waveguide upper surface area, eight groups of coupling grooves located on two sides of the microstrip lines in the substrate integrated waveguide upper surface area, an S-shaped upper groove located in the substrate integrated waveguide upper surface area and three rows of horizontal metalized through holes and three rows of longitudinal metalized through holes which are all located on the substrate integrated waveguide upper surface area. The metalized through holes penetrate through the substrate integrated waveguide upper surface area and the medium layer to be connected with the second metal copper-clad layer so as to respectively form a first resonant cavity, a second resonant cavity, a third resonant cavity and a fourth resonant cavity. The small-sized substrate integrated waveguide band-pass hybrid ring has the advantages of avoiding the problem of waste of the interior space of the existing hybrid ring, and being capable of greatly reducing the circuit area of the traditional hybrid ring.

The invention discloses a low-temperature vehicle-mounted oil drilling fluid purifying system during drilling and repairing, which comprises a mud tank, a pump pry, solids control equipment, an equipment communicating pipeline, a cleaning hot water tank, a feeding tank and a steam heating pipeline, wherein a sand setting bin is communicated with a degassing bin through a high-level overflow; the degassing bin is communicated with a centrifuge bin and the centrifuge bin is communicated with a mixing bin respectively low-level overflow, communicating ports of all bins are provided with valves which can be closed, a degassing device and a high-speed centrifuge are arranged on the tops of the degassing bin and the centrifuge bin, the high-speed centrifuge is close to one side of the mud tank discharging the solid phase, and the degassing device is arranged on the tank surface the mud tank with far away from one side discharging the solid phase; a mud remover is arranged at the top of the centrifuge bin and one side closes to the degassing bin and is close to the high-speed centrifuge in parallel. The invention has the advantages of integration, compact layout, convenient and rapid disassembly and assembly, rapid movement and concentrated residual removal; and in order to adapt to the cold environment, steam heating pipelines are arranged at the bottom of the mud tank, and on a water tank and the pump pry.

The invention aims to provide an integrated containment filtrate exhaust system. A wet filter system serves as a primary filter and mainly comprises a jet-type bubble generation system and a static mixing assembly, and most of radioactive aerosol and molecular iodine in airflow can be removed in a washing manner; gases subjected to wet filtering are subjected to secondary filtration in a metal fiber filter, so that aerosol with a small particle size and entrained liquid drops are removed; and finally the gases enter a silver zeolite filter to remove radioactive methyl iodide gases in the gases. The silver zeolite filtering system is preheated and insulated by utilizing energy of the exhausted gases, and by utilizing a change relationship of the exhaust gas temperature along with pressure, a phenomenon that water vapor is not condensed after the mixed gas enters the silver zeolite filter is ensured, and high filtering efficiency of the methyl iodide gases is ensured. The integrated containment filtrate exhaust system disclosed by the invention has stable high filtering efficiency on radioactive substance, particularly the filtering efficiency of gaseous methyl iodide gases is improved, and the system is compact in structure and low in requirement on space.

The invention relates to a layout structure of transverse power components and belongs to the technical field of semiconductor power components. The power components form a cellular arrangement structure on the transversal section; each cellular has the same structure and is provided with the following elements from inside to the outside: a drain electrode, a light dope drift area, a gate electrode and a source electrode, and the drain electrode is enclosed by the light dope drift area, the light dope drift area is enclosed by the gate electrode, and the gate electrode is enclosed by the source electrode; and the transversal sections of each source electrode, gate electrode, light dope drift area and drain electrode of each cellular are of the same shape, and are round or positive n polygons, wherein n is more than or equal to 3. The invention has the advantages of compact layout without additional curvature terminal design, has low on-resistance, small parasitic capacitance, quick switching speed, strong current capacity and the like, and can be used in the layout structure of the transverse power components such as LDMOS, LIGBT and the like.

A waveguide switch based on alternating short and open loads in a waveguide path. In one embodiment, the switch being made up of four waveguides connected by sections of ridge waveguides where simple short-circuit loads can be activated to control the signal paths. The switch being adapted for the C-, R- and T-type switches. Another embodiment of the same device being adapted for SPT type switched.

The invention is applicable to the technical field of rail transit, and provides a suspension type monorail single-shaft single-beam flat turning turnout. The turnout comprises a supporting assembly and a moving assembly, the supporting assembly comprises a base plate, first guide holes and limiting grooves, the first guide holes are formed in the surface of the base plate at equal intervals, andthe limiting grooves are formed in the surface of the right side of the base plate at equal intervals; by arranging a rotating shaft, a turnout beam and an electric push rod, when the electric push rod works, turnout beams can rotate with the rotating shaft as the center, the ends, away from the rotating shaft, of the turnout beams reach the corresponding positions and are in butt joint with the corresponding track beams, one set of turnout beams can be in butt joint with different track beams, the occupied area is small, when the turnout beams are used in a parking lot, the layout of the parking lot is compact, the occupied area is saved, and therefore engineering investment is saved.

The invention provides a device and a method for detecting reducibility of iron ore. The device comprises an air supply system, a thermogravimetric scale, a tail gas treatment system, a temperature control system, a gas control system and a compute data processing system. In the test process, a test sample 5 is placed in a crucible; a contrastive empty crucible is placed at the other end, and temperature is raised according to a predetermined temperature raising system. The method comprises the following steps: detecting by using a differential thermal scale device mainly based on a thermogravimetry theory; collecting temperature data and quality data in real time in the reaction process; and recording a thermogravimetric curve in the test where weight changes along with the temperature. The device provided by the invention is convenient to operate, small in volume and good in safety because harmful gases produced in the reduction process are discharged after being treated by the tail gas treatment system.

In a motor vehicle comprising an internal combustion engine, a gearbox, an exhaust system and an exhaust system support for securing said exhaust system, said exhaust system (2) passes through said exhaust system support (1, 7, 8) to the engine and/or gearbox (5). According to the invention, said exhaust system support device comprises a support member (1) in the form of a laminated support consisting of two strip-type elastic plates superimposed in a laminated assembly up and displaceable relative to each other over at least a portion of their length.

The invention discloses an elution and restoration device for heavy metal contaminated soil. The elution and restoration device comprises a machine frame, a driving device, a crushing device and a soil elution device, wherein the crushing device comprises a crushing rotating cylinder and a crushing mechanism arranged inside the crushing rotating cylinder, the crushing rotating cylinder is transversely arranged and is rotationally arranged on the machine frame, the soil elution device is arranged right below the crushing rotating cylinder, crushed soil particles are transited into the soil elution device through a feeding and discharging port, moreover, an elution solvent is contained in the soil elution device, and the soil elution device is used for eluting and restoring the soil particles. According to the elution and restoration device for the heavy metal contaminated soil and a restoration and treatment method of the heavy metal contaminated soil, the soil particles can be fully crushed, the soil particles can be timely eluted and repaired, and the restoration degree of soil elution restoration can be improved.

The invention provides an ore mill with a grading function. The invention is characterized by comprising a ball mill, a grading device, a bearing seat and a transmission gear, wherein the grading device is connected with the ball mill; the bearing seat is respectively and rotatablely connected with the ball mill and the grading device through bearings; the transmission gear is connected with the ball mill; the ball mill is composed of a barrel body, an ore feed end cover and an ore discharge end cover, and the ore feed end cover and the ore discharge end cover are respectively provided with a hollow shaft and are arranged on both ends of the barrel body; the transmission gear is composed of a main gear ring, a pinion and a motor which are arranged on the outer side of the ore discharge end of the ball mill shell; the grading device is a grading barrel body which is provided with a screen mesh in the circumferential direction; one end of the grading barrel body is provided with an ore feed end cover with an ore feed port; the ore feed end cover is connected with the hollow shaft of the ore discharge end cover of the ball mill barrel body through a flange; the other end of the grading barrel body is provided with the ore discharge end cover with a hollow shaft; the ore discharge end cover is rotatablely connected with the bearing seat through a bearing; a fine fraction ore collection box is arranged under the grading barrel body; and a coarse fraction ore collection box is arranged under the ore discharge end cover of the grading barrel body. The ore mill shortens the technological process and saves the investment.

The invention discloses a natural gas oxygen-enriched combustion based combined circulation and transcritical CO2 circulation coupling power generation system. H2O is used for neutralizing the combustion temperature; a smoke gas circulation system is omitted; in addition, circulation water uses liquid phase pressurization; the energy consumption is reduced. The water content in the smoke gas generated through O2/H2O combustion is high; by using a conventional combined circulation mode, vaporization potential heat of water vapor in the smoke gas is difficult to use. By using the fuel gas-steamcombined circulation and transcritical CO2 circulation coupling mode provided by the invention, the heat energy of the smoke gas can be sufficiently utilized, so that the power generation efficiency of the system is obviously improved. In addition, LNG cold energy can be sequentially used for CO2 capture in smoke gas and work medium condensing in the transcritical CO2 circulation so as to reduce the power consumption of the carbon capture and to ensure the stable operation of the transcritical circulation; the efficient utilization of the cold energy and the obvious improvement of the system power generation efficiency are realized.

The invention provides a hydraulic device of a water turbine speed governing and protection system. The hydraulic device comprises a guide vane control valve group and a vane control valve group which are connected with a pressure oil source; the guide vane control valve group and the vane control valve group are respectively connected with a guide vane servomotor and a vane servomotor. The hydraulic device also comprises a pure mechanical hydraulic over-speed protection device, an accident shutdown circuit and an emergency/accident shutdown control valve group. The accident shutdown circuit is connected in series between the guide vane control valve group and the guide vane servomotor; the pure mechanical hydraulic over-speed protection device and the emergency/accident shutdown control valve group are connected in sequence; the shutdown signal output end of the emergency/accident shutdown control valve group is connected with the shutdown control signal input end of the guide vane control valve group, the accident shutdown signal input end of the accident shutdown circuit and the shutdown control signal input end of the vane control valve group. The hydraulic device provided by the invention is high in applicable pressure, reduced in size, reduced in servomotor and pipeline dimension, simple in layout and attractive in appearance. After the pressure of the system is increased, a medium-pressure air supply system is not needed, and therefore, the cost is greatly reduced and the space is saved. The hydraulic device is in favor of large-scale use and popularization.

The present invention discloses electrolysis hall and electrolyzing maintenance dock configuration mode. Said configuration mode is electrolysis hall operating plane with electrolyzing maintenance shop operating plane being same horizontal plane, setting one vestibule between electrolysis hall with electrolyzing maintenance shop, electrolysis hall with electrolyzing maintenance shop connecting through vestibule, wherein vestibule length being 3-6 m, width being 6-12 m, capable of turning arrange according to floor status.

The invention provides a liquid nitrogen cooling dehumidification device. The liquid nitrogen cooling dehumidification device comprises a heat exchanger, a liquid-collecting chamber and a liquid nitrogen liquid inlet pipe, wherein the heat exchanger includes a plurality of liquid nitrogen heat exchanging pipes, and a gap is formed between every two adjacent liquid nitrogen heat exchanging pipes; the liquid-collecting chamber communicates with the multiple liquid nitrogen heat exchanging pipes and is arranged at the bottoms of the multiple liquid nitrogen heat exchanging pipes; and the liquid nitrogen liquid inlet pipe communicates with the liquid-collecting chamber. The liquid nitrogen cooling dehumidification device is compact in layout and simple in structure and has no complex parts; the heat exchanging temperature of the liquid nitrogen cooling dehumidification device is low, air can be made to reach a very low dew point, and the dehumidification effect is good; nitrogen produced after liquid nitrogen is evaporated further dilutes water vapor in the dry air, and the mixing ratio of the water vapor is further reduced; and the temperature of the dry air sent back to a room can becontrolled, and requirements of different conditions are met accordingly.

The invention discloses a novel flue gas denitrification device of a CO waste heat boiler. A discharged material concentrator is used for discharging and compressing liquid ammonia transported by a truck; an ammonia storing tank is positioned below the discharged material concentrator; an ammonia evaporator is connected with the ammonia storing tank by virtue of a pipeline; an ammonia gas buffering tank is connected with the ammonia evaporator by virtue of a pipeline; an inlet of an ammonia gas diluting tank is connected with the ammonia storing tank, the ammonia gas buffering tank and the ammonia evaporator; an ammonia/air mixer is positioned below the ammonia gas buffering tank and connected with an ammonia spraying grid; the CO waste heat boiler is connected with the ammonia spraying grid by virtue of a pipeline; an SCR reactor is positioned above the CO waste heat boiler and communicated with the CO waste heat boiler. According to the novel flue gas denitrification device, the SCR reactor is firstly combined with the waste heat boiler for denitrifying of an FCCU; an SCR catalytic reactor module is directly placed at the upper layer of the waste heat boiler, so that the whole SCR reactor is compact in arrangement, the occupation area is reduced, and the investment is lowered; the denitrifying efficiency is high, the technical maturity is high, the utilization rate of a reducing agent is high, oxygen in waste gas rarely involves in a reaction, the heat release is small, and no side products and no secondary pollution are caused.

The invention discloses an ultrahigh-temperature steam power cycle system adopting hydrogen injection burning mix heating. Two stages of hydrogen injection burning mix heaters are adopted for replacing a power station boiler system, pure hydrogen serves as fuel, and pure oxygen serves as a combustion improver; high-pressure supplied water coming from a water supply preheating system is sprayed into the first-stage hydrogen injection burning mix heater, and heat released by hydrogen and oxygen combustion is absorbed and mixed with a combustion product to form high-temperature and high-pressure steam; then the steam is fed into a turbine, a high-pressure cylinder does expansion work, then the steam returns to the second-stage hydrogen injection burning mix heater, and high-temperature preheating steam is obtained through hydrogen and oxygen combustion and mix heating; and then the preheating steam is fed into the turbine, a low-pressure cylinder continues to do expansion work, steam is exhausted by the low-pressure cylinder to be fed into a condenser to be condensed into water, and the water returns to the water supply preheating system. A steam system is simplified, high-temperature metal materials are saved, the initial temperature of steam can rise to above 700 DEG C, and the power generation efficiency of a steam power cycle is greatly improved.

The invention provides an integrated converter cabinet, comprising a cabinet body, a cooling system, a traction converter, an auxiliary converter and a train power supply unit. The cooling system comprises a cooling component and a cooling tower. The traction converter, the auxiliary converter, the train power supply unit and the cooling component are arranged inside the cabinet body, and the cooling tower is arranged outside the cabinet body. The cooling component is used for cooling the traction converter, the auxiliary converter and the train power supply unit. By integrating the train power supply unit into the converter cabinet, the space occupied by vehicle assembly is reduced, the vehicle layout is more compact, the vehicle weight is reduced, and the requirement for a light vehicleis met. Moreover, the train power supply unit is cooled by the cooling component of the converters, and the heat dissipation effect is better.

The invention relates to an ectoskeleton knee joint of artificial limb, pertaining to a rehabilitation engineering technical field, which comprises a servo motor, a drive mechanism and a four-bar linkage. The four-bar linkage comprises a thigh ectoskeleton, a crus ectoskeleton, a back link and a worm wheel; the drive mechanism comprises a main drive gear, a driven gear and a worm; the thigh ectoskeleton consists of two plates (an inner plate and an outer plate) between which the servo motor is fixed; the main drive gear is fixedly connected with an output shaft of the servo motor and meshed with the driven gear; the driven gear is positioned on one shaft end of the worm; the worm is fixed between the two plates of the thigh ectoskeleton; the worm is meshed with the worm wheel; the other end of the worm wheel is connected with the crus ectoskeleton through a bearing; a rotation centre of the worm wheel is connected with the thigh ectoskeleton through a support shaft of the worm wheel; the back link is connected with the thigh ectoskeleton and a support shaft of the crus ectoskeleton. The ectoskeleton knee joint of artificial limb of the invention has compact structure and the whole drive system is completely positioned in interior sides of the crus ectoskeletons in two thighs, thus preventing suffers from the impact of mechanical structure.

The invention relates to an automatic man-machine integration production line of a miniature circuit breaker and a working method thereof. The production line comprises an assembly line and a packaging line, all steps of the assembly line and the packaging line are on the same production line, and a production mode of 'one flow-production' is formed; through the layout and the flow design, the assembly line conducts production by adopting two lines and a mode of the symmetric U-shaped layout, the assembly line is combined with the packaging line in the U-shaped layout behind, the whole line iscompact in layout, the use rate of the field area is high, and the production takt of 1.5 seconds of the whole line is achieved; units are assembled in a coil system, two artificial assembly lines are separated out, an automatic mechanism conducts automatic distribution on products, and front-back seamless connection of the process is achieved.

The invention discloses an above-water movable type river sediment treatment system which comprises a movable comprehensive guarantee ship for being matched with a cutter suction type dredger and a sand carrier, and a movable mechanical dewatering ship for being matched with a dry mud outward-transport ship. The above-water movable type river sediment treatment system in the technical scheme is reasonable in arrangement; through the comprehensive utilization of the movable barge comprehensive guarantee ship, the mechanical dewatering ship, a conventional dredger, the sand carrier and the dry mud outward-transport ship, river sediment can be reduced and stabilized. The above-water movable type river sediment treatment system is compact in layout, small in occupied area and easy to establish on site without a fixed place. The above-water movable type river sediment treatment system has a remarkable effect on standard treatment of river sediment.

The invention discloses an unloading system of a two-way feeding ore bin and aims to solve the problem that in the prior art, a two-way feeding ore bin is loose in structure. The unloading system of the two-way feeding ore bin comprises a belt type conveyor and two material distributing and unloading carts matched with the belt type conveyors; each material distributing and unloading cart comprises a cart frame and a material distributing device and a material unloading device which are opposite in direction; each material distributing device comprises a material distributing hopper, and each material distributing funnel comprises two unloading outlets and a material distributing plate arranged at the intersecting position of the two unloading outlets; each unloading device comprises an unloading funnel, the material distributing funnels are flush with the material unloading funnels, and a reversible belt type conveyor is arranged below the material distributing funnels and the material unloading funnels; the belt conveyor is matched with one material distributing device and one material unloading device, and the material distributing devices are arranged in front of the material unloading devices. The unloading system is compact in structure, good in production interchangeability, high in production safety, less in one-time investment and low in operation and maintenance cost.

The invention discloses an electric industrial vehicle integrated power system and a control method thereof. The technical problem that an existing electric forklift driving and hydraulic power systemis single in technical route is solved. The problems that a connecting cable in a system is too long, assembly of a whole vehicle is not facilitated, the cost is increased and the use efficiency of electric energy is affected due to the fact that the cable is too long, the heat dissipation efficiency and functions are not easy to achieve, each unit needs to be cooled or dissipated independently,the structure is very complex, and the cost is greatly increased are solved. The system comprises a driving power subsystem, a hydraulic power subsystem and an upper power control subsystem, the device is highly integrated, compact in arrangement, simple in structure and convenient to install the whole vehicle, and the structure is completely integrated into a unified whole; the high-voltage wireharness and the low-voltage wire harness are directly connected in a short distance, so that the connection length of external cables among all parts of the integrated power system is greatly reduced,and the length of the cables is reduced; and a cooling fan is arranged.

The invention relates to a pinion unit for engines, which is characterized in that a bottom plate is fixed on the engine body; a center shaft, a first idle gear shaft, a cam shaft, a second idle gear shaft, an output shaft, a driving shaft for a water pump and a driving shaft for an oil pump; a gearwheel and a pinion are coaxially arranged on the center shaft; the gearwheel is engaged with a crankshaft timing gear; a driving gear for the cam shaft is arranged on the cam shaft; a gear of the fuel injection pump is fixed on the output shaft; the gearwheel is engaged with a driving gear for the water pump; the driving gear for the water pump is arranged in a gear chamber and is arranged on the driving shaft for the water pump; the crankshaft timing gear is engaged with a driving gear for the oil pump; and the driving gear for the oil pump is arranged on the driving shaft for the oil pump. The pinion unit fully utilizes the space of the gear chamber, ensures that the axial size of the engine is utilized to the utmost extent, decreases the axial size of the whole engine, is more compact in arrangement, and simultaneously improves transmission reliability as well.

The invention is concerned with a kind of aeromodelling copter steering mechanism, relating to leaning tray, airframe connecting axis crossing the whole leaning tray, cover of lathe-hedd, leading head inside of cover of lathe-hedd, some hauling pole and airscrew system. The airscrew system relates to balancing pole and vane turning block and there is hauling pole between the vane turning block and balancing pole. The leaning tray relates to bearing of airframe connecting axis, leaning tray main body base seat covering the said bearing, leaning tray main body upper cover covering on the said leaning tray main body base seat, leaning ball crossing on the airframe connecting axis and on the said leaning tray main body upper cover, leaning tray main body down cover covering the said leaning ball. The leaning tray main body down cover having some connecting heads, and some heads connecting with leading bal through hauling pole, while the other heads connecting with vane turning block through hauling pole. The leaning tray main body base seat has some connecting heads connect with rudder of aeromodelling copter through hauling pole, and the rudder affords power to turning framework.