31results about How to "Increased flow cross section" patented technology

A hydrostatic axial piston machine defines an adjustable displacement volume and includes a housing, a cylinder drum, a plurality of working pistons, a pivot cradle, and a plain bearing. The working pistons are received in the cylinder drum so as to be axially displaceable, and are supported on a sliding surface of the pivot cradle. The pivot cradle is configured to adjust the displacement volume, and is pivotably mounted on the plain bearing. The plain bearing is fixed with respect to the housing. The hydrostatic axial piston machine is configured to form at least one first hydrostatic relief pressure field between the plain bearing and the pivot cradle.

The invention relates to a centrifugal pump (1), in particular to a centrifugal pump for household appliances, such as washing machines or dishwashers, which comprises a pump housing (2) having an axial inlet (11), an outlet (12) and a heating element, wherein the pump housing (2) incorporates a rotatably mounted impeller (4) and a flow channel (15) enveloping the impeller (4) and heating element. The centrifugal pump (1) according to the invention is intended to have improved efficiency. This is achieved by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet (12).

The invention relates to a method for producing a container (2) filled with a liquid filling medium, wherein a preform (1) made of a thermoplastic material is stretched after thermal conditioning by means of a stretching rod (11) and is transformed into the container (2) in an inflation process, wherein the inflation process comprises a pre-blowing phase, in which a fluid at a first pressure level is used for inflation, and a main blowing phase, in which a fluid at a second pressure level higher than the first pressure level is used for inflation. The invention is characterised in that the fluid used in the pre-blowing phase is a blowing gas, and that the fluid used in the main blowing phase is the filling medium. The invention further relates to a device for carrying out a method according to the invention.

The invention relates to a power train comprising: an internal combustion engine; an exhaust gas utilization turbine arranged in the exhaust gas flow of the internal combustion engine; a crankshaft driven by the internal combustion engine; Connected so that the crankshaft can be driven by the exhaust gas utilization turbine; the hydraulic coupling has a driving wheel and a driven wheel, which form a working chamber with each other, which can be filled with a working medium for torque transmission; the driving wheel and the exhaust gas utilization turbine form a transmission connection; the driven wheel forms a transmission connection with the crankshaft; the relative rotational movement of the driving wheel can be mechanically braked and locked, so that the fluid coupling obtains the function of a hydraulic speed reducer; according to the power transmission system of the present invention The characteristic feature is that a control device is provided, which causes the working chamber of the fluid coupling to be emptied in a targeted manner to a predetermined filling level before and / or while the driving wheel is braked.

The invention relates to an electropneumatic spring brake device (1) of a motor vehicle, including means for generating electric brake actuation signals that represents at least the "brake application" state and the "brake release" state; an electronic controller (8) which receives the brake actuation signals; an electropneumatic valve device (10) which is controlled by the electronic controller (8) dependent on the actuation signals; and at least one pneumatically actuated spring brake cylinder. The electropneumatic valve device (10) aerates the at least one spring brake cylinder by connecting to a compressed air supply (12) or de-aerates the spring brake cylinder by connecting to a pressure sink (3). A maximally aerated state, which can be brought about by the electronic controller (8), of the electropneumatic valve device (10) is produced in that the electropneumatic valve device (10) releases a maximum flow cross-section between the compressed air supply (12) and the at least one spring brake cylinder. According to the invention, the electronic controller (8) is designed to keep the electropneumatic valve device (10) in the maximally aerated state when switching from the "brake application" state to the "brake release" state while the vehicle is traveling until the pressure in the at least one spring brake cylinder is abruptly increased from a starting pressure value lying below a first gradient to a relatively higher first pressure value which still lies below a brake release pressure that fully releases the spring brake cylinder, and after the first pressure value has been reached, the electropneumatic valve device is switched to a state in which the pressure in the at least one spring brake pressure cylinder is increased from the first pressure value lying below a second gradient that is smaller than the first gradient to a second pressure value that is higher than the first pressure value in order to assume a partial release position or a full release position.

An assembly for cooling an exhaust gas stream includes an outlet nozzle capable of being loaded by the exhaust gas stream. The outlet nozzle projects into an open end of an adjacent exhaust gas pipe so that a reduced pressure relative to the surrounding environment is produced in a suction region between the outlet nozzle and the exhaust gas pipe by flow of exhaust gas. Adjusting members vary the flow cross section of the outlet nozzle.

The invention relates to an air duct (10) for supplying ambient air in an aircraft, comprising an air inlet (12), a duct channel section (16) extending downstream of the air inlet (12) and an air conveying device (22) which is adapted to convey ambient air through the air inlet (12) and the duct channel section (16). A flow control flap (24) closes the air inlet (12) in a first position, releases a first flow cross-section of the air inlet (12) in a second position and releases a second flow cross-section of the air inlet (12), which is larger than the first flow cross-section, in a third position.; The flow control flap (24) is designed and arranged in such a manner that a first surface section (28) of the flow control flap (24) is oriented substantially parallel to an aircraft shell section (18) surrounding the air inlet (12) in the area of the air inlet (12) in the second position of the flow control flap (24) and that the first surface section (28) of the flow control flap (24) is oriented at an angle with respect to the aircraft shell section (18) surrounding the air inlet (12) in an area of the air inlet (12) in the third position of the flow control flap (14).

The invention discloses a nozzle for sandblast fracturing. The nozzle for sandblast fracturing comprises a nozzle body and a reinforcing layer arranged on the inner surface of the nozzle body, wherein the reinforcing layer comprises multiple abrasion-resistant layers with different degrees of abrasion resistance, the abrasion-resistant layers include the first ceramic layer which is directly adjacent to the nozzle body, the alloy steel layer which is adjacent to the first ceramic layer and a second ceramic layer which is adjacent to the alloy steel layer, and the abrasion resistance of the second ceramic layer is higher than the abrasion resistance of the alloy steel layer. According to the nozzle for sandblast fracturing, the nozzle can be abraded properly during sandblast perforation, the strength of the nozzle can not be reduced seriously, and the discharge capacity can be improved during fracturing.

The invention relates to a cylinder, in particular for a motor vehicle hydraulic brake systems comprising at least one case (2) provided with a plunger piston (3) movable therein, at least one angular sealing collar (5) arranged in the snap ring groove (4) of the case (2), an internal lip (6) dynamically applied to the plunger piston (3) by a first sealing surface (8), an external lip (7) statically applied to the bottom of the snap ring groove (4) by a second sealing surface (9) and the back of the collar (17). Said invention is characterised in that the back of the collar (17) is not flat and is provided with at least one peripheral-sealing surface (18, 24).

The invention relates to an adjustable magnetic valve (10A) which includes a magnet assembly (20A) and a guide sleeve (13A) in which a static component (11) is arranged fixedly and a valve armature (17A) is arranged so as to be axially displaceable therein. The magnet assembly (20A) is pushed onto the static component (11) and the guide sleeve (13A). The static component (11) forms an axial stop for the valve armature (17A), which either forces a closing element (17.1A) into a valve seat (15.1A) or lifts the closing element from the valve seat (15.1A) depending on the direction in which the valve armature is driven. The valve armature (17A) and the static component (11) are each formed as plastic components. The valve armature (17A) has a magnet receptacle (17.3A) that receives a permanentmagnet (18A) which is polarized in terms of its movement direction such that the permanent magnet (18A) is arranged within the magnet assembly (20A) regardless of the armature stroke.

The invention relates to a heat exchanger (10), in particular for an exhaust gas cooler of an internal combustion engine. The object of the invention is to achieve a separation of the carrier medium into two partial flows as free as possible of flow leakage by means of a suitable design of the partition ( 40 ). A heat exchanger (10) which can be used as an exhaust gas cooler of an internal combustion engine has a heat exchange line (14) and a bypass line (11), wherein in the flow line (25) the A switching valve (20) is provided upstream, which separates the carrier medium flowing into the heat exchange line and the bypass line. In order to maintain separation between the partial flow through the bypass line (11) and the partial flow through the heat exchange line (14), a partition (40) is provided which, according to the invention, extends from the switching valve (20) to the beginning of the bypass pipe (11).

A solenoid valve for controlling a fluid includes an armature having a base region, a lateral region and a head region. The solenoid valve includes a valve member connected to the armature. The solenoid valve further includes an armature casing component in which the armature is positioned. A flow path is formed between the armature and the armature casing component, the flow path extending from a lower armature space to an upper armature space and back to the lower armature space. A junction region is arranged between the head region and the lateral region. The junction region has at least one groove formed therein to facilitate an overflow between the lateral region and the head region.

A solenoid valve for controlling a fluid includes an armature having a base region, a lateral region and a head region. The solenoid valve includes a valve member connected to the armature. The solenoid valve further includes an armature casing component in which the armature is positioned. A flow path is formed between the armature and the armature casing component, the flow path extending from a lower armature space to an upper armature space and back to the lower armature space. A junction region is arranged between the head region and the lateral region. The junction region has at least one groove formed therein to facilitate an overflow between the lateral region and the head region.

The invention relates to a drive train, comprising an internal combustion engine, an exhaust gas turbine, arranged in the exhaust system of the internal combustion engine, a crankshaft, driven by the internal combustion engine, switchably connected by means of a hydrodynamic coupling to the exhaust turbine with a drive direction such that the crankshaft is driven by the turbine, said hydrodynamic coupling comprising a primary rotor and a secondary rotor which together form a working chamber which may be filled with a working medium for torque transmission, the primary rotor being in driven connection to the exhaust turbine. The primary rotor may be mechanically braked and locked with relation to a rotational movement such that the hydrodynamic coupling assumes a hydrodynamic retarding function. Said drivetrain according to the invention is characterised in that a controller is provided which, before and / or during a braking of the primary rotor, empties the working chamber of the hydrodynamic coupling to a given level.

The invention relates to a furniture hinge (4), including: at least two positioning members (5, 6) which are hinged and fixed on furniture members (2, 3); a buffer device (10) for buffering the relative movement of at least two positioning members, wherein the buffer device has a first fluid chamber (16) and a second fluid chamber (21) which are filled by buffer fluids; a channel (19) for connecting two fluid chambers; a piston (16a) inserting into the first fluid chamber in two fluid chambers and changing the volume of the first fluid chamber (16); and a device (25) arranged in the second fluid chamber, deforming or moving through inlet and outlet of the buffer fluid into / from the second fluid chamber to chamber the volume of the second fluid chamber, wherein at least one connection sheet (20) having at least one port (20a) is arranged behind the channel (19) along a flowing direction set in a buffer process, and the buffer fluids can flow in the second fluid chamber through the port.

A machine proposed for use in energy producing industry as an engine, a pump and a compressor. The machine has a crankcase 1, a cylinder 2, and a piston 3 and a piston rod 4, two crankshafts 6 and 7 rotating in opposite directions. An inner hollow 12 of the piston communicates with a throughgoing axial passage 13 of the piston rod 4 located in the crankcase with the possibility of a reciprocating movement in a suction pipe 14; wherein the passage 13 of the piston rod is formed with a diffusor 27 from the side of the hollow 12 of the piston 3 and with a confusor 28 from the side of the suction pipe 14. Pumping valves 18 are arranged on the cover 5 of the cylinder, and suction valves 16 are arranged on the front wall of the piston; wherein the piston rod 16 and the connecting rods 10 and 11 of the crankshaft 6 and 7 are hingedly connected with a traverse 29. The invention provides a reduction of a waste space and reduction of hydraulic losses.

The invention relates to an indirectly heated fluidized bed dryer (1) for drying moist fine-grained bulk material. The fluidized bed dryer (1) comprises a housing (2) with an aerated bottom (6), heat exchanger inners extending above the aerated bottom (6) and at least one (6) The lower discharge device for the dried loose material. The fluidized bed dryer (1) according to the invention is characterized in that the available flow cross section of the housing (2) in the region of the heat exchanger inserts is constant over the entire height of the heat exchanger inserts in the cross section of the housing The case increases in the flow direction of the fluidized medium. Inadmissible expansion of the steady-state fluidized bed is reliably prevented in this way.

A machine recommended for use in the energy generation industry as an engine, pump and compressor. The machine has a crankcase 1 , a cylinder 2 with a piston 3 and a piston rod 4 , two crankshafts 6 and 7 rotating in opposite directions. The internal cavity 12 of the piston communicates with the through axial passage 13 of the piston rod 4, which is arranged in the crankcase and has the possibility of reciprocating movement in the suction pipe 14; A diffuser 27 is formed on the side of the cavity 12 and a stirrer 28 is formed from the side of the suction tube 14 . The pumping valve 18 is arranged on the head 5 of the cylinder, the suction valve 16 is arranged on the front wall of the piston; wherein the piston rod 16 and the connecting rods 10 and 11 of the crankshafts 6 and 7 are hingedly connected with the beam 29 . The present invention provides a reduction in wasted space and a reduction in hydraulic losses.

A hydrostatic axial piston machine defines an adjustable displacement volume and includes a housing, a cylinder drum, a plurality of working pistons, a pivot cradle, and a plain bearing. The working pistons are received in the cylinder drum so as to be axially displaceable, and are supported on a sliding surface of the pivot cradle. The pivot cradle is configured to adjust the displacement volume, and is pivotably mounted on the plain bearing. The plain bearing is fixed with respect to the housing. The hydrostatic axial piston machine is configured to form at least one first hydrostatic relief pressure field between the plain bearing and the pivot cradle.

The invention relates to the field of diaphragm valve intelligent control, in particular to a pneumatic diaphragm valve intelligent control system and method based on the Internet of Things. The pneumatic diaphragm valve intelligent control system based on the internet of things is large in circulation amount, long in service life, relatively stable in sealing retentivity and convenient for replacing parts in advance. A pneumatic diaphragm valve intelligent control system based on the internet of things comprises a valve body, a valve cover and a diaphragm assembly, wherein the valve body is in bolted connection with the valve cover, a flow sensor is arranged at the fluid outflow end of the valve body, a flow module is arranged on the flow sensor, the flow sensor is electrically connected with the flow module, and the diaphragm assembly is arranged between the valve body and the valve cover. The flow cross section of fluid is increased through the design of the arc-shaped groove in the valve body, the adhesive force between the valve body and the diaphragm is increased and the service life of the valve body is prolonged through the design of the connecting piece, so that problems generated during fluid filling are displayed through the field control panel, and the service lives of parts are reminded.

The invention relates to an electro-pneumatic spring energy storage brake device (1) for a motor vehicle, comprising means for generating an electric brake operating signal (the electric brake operating signal represents at least "brake applied" and "brake applied"). device, the electronic control device (8) receiving the brake operation signal, the electropneumatic valve device (10) controlled by the control electronic device (8) according to the operation signal, and at least one pneumatically operated spring storage An energy braking cylinder, wherein the electro-pneumatic valve device (10) is connected to a compressed air source (12) to inflate the at least one spring energy storage brake cylinder or ventilated by connecting to a pressure relief port (3) , and wherein there is a maximum inflation state of the electropneumatic valve device (10) that can be caused by the electronic control device (8), in which state the electropneumatic valve device (10) opens at the compression The largest flow cross-section between the air source (12) and the at least one spring-charged cylinder. It is provided according to the invention that the electronic control unit (8) is configured such that the solenoid valve unit (10) is activated by the The electronic control unit (8) is controlled in the maximum charging state for a long time in this way until the pressure in at least one spring storage brake cylinder starts from the output pressure value with a first gradient and jumps to a level higher than that At a first pressure value that is higher, but still below the brake release pressure for fully releasing the spring-loaded brake cylinder, and is controlled in a state after reaching the first pressure value, In this state, starting from a first pressure value, the pressure in at least one spring accumulator brake cylinder is increased with a second gradient, which is smaller than the first gradient, to At a second pressure value higher than the first pressure value.

The invention relates to an adjustable solenoid valve (10A) having a magnet assembly (20A) and a guide sleeve (13A) in which a non-movable part (11) is fixedly arranged and a valve armature (17A) is axially displaceable arranged in the guide sleeve, wherein the magnet assembly (20A) is pushed onto the immovable part (11) and the guide sleeve (13A), wherein the said non-movable part (11) forms an axial stop for said valve armature (17A), wherein said valve armature (17A) can be driven by a magnetic force generated by an energized magnet assembly (20A), And pressing the blocking element (17.1A) into the valve seat (15.1A) during the movement in the blocking direction; and lifting the blocking element from the valve seat (15.1A) during the movement in the opening direction. In this case, the valve armature (17A) and the immovable part (11) are each formed as a plastic component, wherein the valve armature (17A) is in its second position facing the immovable part (11). At one end face there is a magnet housing (17.3A) which accommodates a permanent magnet (18A) polarized along its direction of motion so that the permanent magnet (18A) is arranged on the Inside the magnet assembly (20A).