Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

999results about How to "Stable separation" patented technology

Attitude control system for space vehicle and method thereof

The invention discloses an attitude control system for space vehicle and a method thereof. The control system has only one biased momentum wheel, one set of tri-axial magnetic torquer and one attitude controller loaded with algorithm. The method comprises a step of rate damping controlling, a step of initially capturing controlling and a step of stationarity controlling. At the rate damping stage, geomagnetism change is used to control the magnetic control of three passages of a satellite by B-dot; at the initially capturing stage, the magnetic control is realized, PD control is performed by pitching and the passages are rolled and yawed to carry out nutation and precession composite control; at the stationarity controlling stage, the magnetic control is realized, PD control is performed by pitching and the passages are rolled and yawed to carry out nutation and precession composite control. The capturing stage and the stationarity controlling stage fully depend on magnetic torquer to perform positive magnetic control, thereby changing which a satellite only uses a magnetic torquer to carry out unload of the momentum wheel or auxiliary magnetic control, so as to refine system configuration to further improve reliability of the system. Momentum of a satellite is biased to rotate on the ground, so as to ensure stable separation of the satellite without performing air injection control. Therefore, the magnetic torquer can be used for realizing fast and stable initial rate damping.
Owner:SHANGHAI ENG CENT FOR MICROSATELLITES

Gel-filled seismic streamer cable

A gel-filled seismic streamer containing a hydroplane housing which isolates a hydrophone element from shear waves and mechanical forces but sensitive to pressure waves. In one embodiment, the gel-filled streamers contains a hydrophone housing with an air pocket at each end for isolating a pressure sensitive hydrophone element from mechanical noise generated by cable movement during seismic data acquisition operations. The hydrophone housing further provides a protective case to isolate a pressure-sensitive hydrophone element from shear waves. An inlet formed in the protective hydrophone housing enables pressure waves to be communicated to the pressure sensitive hydrophone element inside of the housing. In one embodiment, the pressure sensitive hydrophone element is a hollow gel-filled cylinder that expands radially outward into a second air gap formed in the housing. A protective case is also provided to isolate the hydrophone housing from shear waves. An alternative hydrophone housing for deployment inside of a streamer is also disclosed which fixably positions a positioning hydrophone or seismic hydrophone within the housing using rubber supports.
Owner:WESTERNGECO LLC

Intensive processing method for stalk articles or agricultural castoff

The invention provides a method for intensive processing of straw-type materials or wastes of agriculture and forestry. The method has the following steps: the straw-type materials or the wastes of agriculture and forestry are first ground and then soaked in hot water; hydrolyzation is carried out by diluted acid or monopotassium phosphate solution, the hydrolyzate is used for producing furfural or xylose, solid content after the hydrolyzation is washed and added with alkali substances for neutralization, then cellulase and feruloyl esterase are added to synergetically hydrolyze cellulose in solid content, the cellulose is broken down into 6-carbon monosaccharide and exists in sugar liquor; adsorption filtration is carried out on the sugar liquor by activated carbon, then high-temperature sterilization and cooling are carried out on the sugar liquor before inoculation of fermentation strain to produce acetone, butanol and ethanol by fermentation; the method of the invention maximizes the application of the straw-type materials or the wastes of agriculture and forestry, thus turning existing wastes into the valuables while finding new raw material sources and a new method for producing acetone, butanol and ethanol and bringing more economic and social benefits to the enterprises and the society.
Owner:ZHENGZHOU DAYANG GREASE CHEM EQUIP

Full automatic unpacking unloader

The invention relates to a solid material unpacking machine, in particular to a full automatic unpacking and unloading machine, which is characterized in that: all stages of mechanisms are connected through flanges; a bag breaking mechanism, a screening mechanism and a material output mechanism are arranged on a main body frame; the outer surface of the main body frame is connected with a surface panel in a splicing mode; the surface panel on the top of the main body frame is provided with a main dust removal outlet; and a channel formed from the feeding inlet end of a feeding mechanism to the outlet end of the material output mechanism and the outlet end of a waste bag output mechanism is a one-way communication channel. The full automatic unpacking and unloading machine has the advantages that the machine has high work efficiency, energy conservation, environmental protection, small volume, light weight and the like, can safely and stably separate solid materials from packages in automatic high-speed running, and convey the materials to downstream equipment, while the waste packages enter a waste bag recovery device for recovery, and the machine can particularly meet the requirements of unloading, separating and collecting toxic and corrosive powder, and particle materials.
Owner:HANRUI PUZER BULK HANDLING TECH SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products