摘要:
A valve is disclosed. The valve can be mounted through a wall, for example in the hull wall of a submersible vehicle. The internal components of the valve can be readily removed, serviced and/or replaced without removing the valve body from the wall. A filling assembly is also disclosed, which mates with the valve to deliver a fluid from one side of the wall, through the valve and into a storage tank or other apparatus disposed on the opposite side of the wall. The filling assembly actuates the valve to open a fluid pathway therethrough in order to deliver fluid to a storage tank or other apparatus connected to the valve's exit port.
摘要:
A system, method and program product for that: receives image data from at least one provider such as a drone, on-board vision system, fixed camera, satellite, wearable, smart phone, etc.; processes the image data to identify congestion-based information such as parking spot availability, standby location information, traffic flow information, and line waiting time information; and outputs the information to devices and applications, such as user apps, vehicle fleets, event operators, etc.
摘要:
Provided is a method for increasing proliferation of mesenchymal stem cells. The method entails contacting the cells with 6-bromoindirubin-3′-oxime (BIO). This results in robust proliferation and “sternness” in a dose-dependent fashion, as indicated by the gene expression of two stem cell genes: Sox2 and Nanog.
摘要:
A charging device for a tubular reactor has metering chambers which can be filled with filling material, such as, for example, catalytically coated carrier material, it being possible for a respective tube of the tubular reactor to be filled via a feed device which adjoins the metering chamber. The metering chamber has a sloping surface and an opposing surface for supporting the filling material, which run at an angle to one another.
摘要:
A multi-cylinder internal combustion engine is provided which includes an exhaust gas driven turbocharger. Each cylinder includes at least one inlet port controllable by an inlet valve, at least one outlet port controlled by an outlet valve, and at least one separate additional auxiliary valve arranged in the cylinder head of the engine. A line for gas flow communicates with the additional auxiliary valves. The line from the auxiliary valve of at least a first cylinder is connected directly or indirectly with at least one second cylinder, and the gas flow through that line from the first cylinder to the second cylinder is controllably guided also to a pressure storage device and/or a turbine of the turbocharger.
摘要:
A continuous motion position controlled in-line linear seamer allows a manufacturer or brewery such as a microbrewery to have high speed can seaming (attachment of lids to full cans of beverage) with a single compact, inexpensive, independent and repositionable seaming machine. The seaming is carried out in-line with production, and is done using a linear can path with no need for a large carousel. The motion is continuous because a variable pitch worm drive is constantly operating, driving cans at different speeds for different portions of the can path, including one portion of the path at which the can may remain motionless while being seamed.
摘要:
A vibration isolation system (100) for a payload (102). The vibration isolation system provides a level of vibration isolation for all vibration translational and rotational components, while minimizing the moment of the payload mass relative to the isolation system. The system includes a base (104) and a plurality of vibration isolators (114). Each vibration isolator includes a semi-rigid first support member (202) having first portion (204) positioned below the base and an opposing second portion (206) positioned above the base, and a second support member (208) having a first portion (210) fixed to the base and an opposing second portion (212) extending above the base. An elastomeric coupling (228) couples the first support member to the second support member at a height that is approximately equal to a height of a center of gravity (302) of a combined mass of the base and the payload above the base.
摘要:
A seal for a drive journal of a ball valve. The elements which directly carry out the sealing action are arranged below a thrust collar which is directed against the cover of the ball valve and is displaceable in the axial direction with the aid of set screws which extend through the cover. The sealing ring is a U-ring which abuts the thrust collar and the walls of the drive journal and the housing. The U-ring is provided with an annular slot which is open toward a thrust ring and, at its deepest portion, has a metallic compensating ring followed by a spiral ring.The present invention relates to a seal for a drive journal of a ball valve, according to which the elements which directly carry out the sealing action are arranged below a thrust collar which is directed against the cover of the ball valve and is displaceable in the axial direction with the aid of set screws which extend through the cover.Such drive journal seals require a construction and arrangement of the sealing elements which guarantees a good seal between the drive journal and the housing even with an off-center positioning of the drive journal.It is known to satisfy this requirement by providing so-called cover sleeve-like annular seals with about three to eight sleeves, according to the pressure stage. These seals necessitate a great amount of room and a plurality of parts. With regard to shifts of the drive journal caused by the operating conditions, these seals can accommodate only relatively small deviations from the centered position. The resulting elastic sealing forces of the sleeves are directed at an angle against the walls of the drive journal and the housing, thereby making the smaller radial components of the sleeves operative.It is therefore an object of the present invention to decrease the space occupied by the seal of the drive journal, to reduce the number of individual parts, and to design the seal in such a way that, with relatively little employment of pressure through the thrust collar, an efficient seal is continually achieved, even with extreme deviations of the drive journal from its centered position.This object and other objects and advantages of the present invention will appear more clearly from the following specification in connection with the accompanying drawing, which is a longitudinal cut-away section of a ball valve, showing a portion of the drive journal seal pursuant to the present invention.The drive journal seal pursuant to the present inventon is characterized primarily in that the sealing ring, which is a U-ring and which abuts the thrust collar and the walls of the drive journal and the housing, is provided with a circular slot which is open toward a thrust ring. The slot, at its deepest portion, has a metallic compensating ring followed by a spiral spring.In order to prevent the U-ring, especially with high pressure ball valves, from being damaged as a result of the strong axial pressure load of the drive journal seal, the compensating ring, pursuant to a further embodiment of the present invention, has an approximately semicircular cross section, the rounded portion of which is encircled by the sealing material of the U-ring, while the flat side contacts the spiral spring.In order, if necessary, to have available a particularly broad adjustment possibility for the drive journal seal, the present invention provides that the spiral spring is laterally inserted against the sealing material under preload and has an elliptical cross section, the major axis of which extends parallel to the central axis of the drive journal. The annularly extending flange of the thrust ring, which flange has a rectangular cross section, projects into the slot of the U-ring and continually contacts the spiral spring.
摘要:
A continuous motion position controlled in-line linear seamer allows a manufacturer or brewery such as a microbrewery to have high speed can seaming (attachment of lids to full cans of beverage) with a single compact, inexpensive, independent and repositionable seaming machine. The seaming is carried out in-line with production, and is done using a linear can path with no need for a large carousel. The motion is continuous because a variable pitch worm drive is constantly operating, driving cans at different speeds for different portions of the can path, including one portion of the path at which the can may remain motionless while being seamed.