50results about How to "Reduce air pressure loss" patented technology

The present invention describes a method and an arrangement for purifying the intake air of a gas turbine of solid particles and liquid droplets. According to the invention air is taken into the system of intake air passages (1, 2, 4) of the gas turbine and the particles contained in the intake air are collected by means of at least one plate filter (3) to which a collection voltage has been connected. In order to enable and enhance collection, the air is taken into at least one charging chamber (2) arranged at a distance prior to the plate filters (3) in the flow direction of the air, where an electric field is formed between at least two electrodes (5, 7) by connecting a voltage between the electrodes which exceeds the collection voltage, whereby powerful charging of the particles and at least partial removal of the water contained in the air are effected.

The present invention is an electrochemical reactor unit in which a plurality of electrochemical reactor cells constituted by a tube are housed in a porous material body having a heat releasing function and a current collecting function, these are electrically connected in series, and a fuel manifold is mounted to the connected electrochemical reactor cells; an electrochemical reactor module that comprises a plurality of the units which are arranged in fuel supply holes, and a structure supplying air directly to the entire electrochemical reactor module; and an electrochemical reaction system in which such an electrochemical reactor module is utilized.

A dust collector cup working in the principle of fall centrifugal separation, consists of cup body (13), outlet (3) on the cup body (13), inlet (1) tangential to the circumferential wall of the cup body (13), and a separator settled in the cup body (13). The separator is composed of outlet tube (9), inlet (6) on the wall of the outlet tube (9), and the isolating shield (7) under the inlet (6) of the outlet tube (9), with the outlet tube (9) linked to the outlet (3) of the cup body (13). The fall between the horizontal positions of the lower end of inlet of the cup body (13) and the upper end of the inlet (6) of the outlet tube (9) is 0-140 mm.

The invention relates to a pneumatic quick connector which comprises a female connector connected with an air inlet pipe and a male connector connected with an air outlet pipe, wherein an air outlet end of the female connector is fixedly provided with a locking sleeve; the inner holes of the female connector and the locking sleeve are internally provided with a check valve core with an exhaust channel; an air inlet end of the male connector is communicated with the exhaust channel of the check valve core; a guide sleeve is clamped between the locking sleeve and the inner wall of the female connector; the check valve core is movably penetrated in the inner hole of the guide sleeve; a valve core spring is supported between the guide sleeve and the check valve core; the head part of the check valve core is sealed, forms a taper shape and is opposite to the air inlet direction of the female connector; the excircle of the head part of the check valve core is provided with a sealing ring slot, and an O-shaped sealing ring is embedded in the sealing ring slot; and the side wall at the front end of the check valve core is provided with an air inlet communicated with the exhaust channel of the check valve core. The invention can realize the quick on-off of an air conveyer pipeline, has a check function for preventing air leakage during turning off and also has the advantages of less loss and convenient and quick on-off operations.

A tubular air cleaner includes a housing, which has a peripheral wall and a bottom wall, an inlet, which is formed in the peripheral wall, an outlet, which is formed in the bottom wall, a filter element, and a partition wall portion. The filter element has a filtration portion and is accommodated in the housing. The partition wall portion forms the inlet together with the peripheral wall. The filter element is arranged eccentrically with respect to the axis of the housing. An air flow path is formed between the filtration portion and the inner peripheral surfaces of the peripheral wall and the partition wall portion. The air flow path has a gradual change portion, in which the distance between the inner peripheral surface of the peripheral wall and the outer peripheral surface of the filtration portion gradually decreases toward the downstream end.

A cylindrical air cleaner for an internal combustion engine comprises: a cylindrical housing including a circumferential wall having an inlet, a top wall having an outlet, and a bottom wall opposed to the top wall; and a tubular filter element accommodated in the housing. A planar adsorbent filter to adsorb evaporated fuel of the internal combustion engine is located at an inner side of the filter element and extends in an axial direction of the filter element. The adsorbent filter includes a basal end portion fixed to an inner surface of the bottom wall. An inner surface of the filter element is spaced apart from each of opposite planes of the adsorbent filter by a gap that allows air to reach the outlet without passing through the adsorbent filter.

The invention relates to a large-size lightbox ball, comprising a ball body, a support and an inflating device, wherein the ball body is made by clipping a high-strength composite flexible material according to a special spherical surface and then splicing the clipped materials; the support is arranged at the lower part of the ball body and comprises a bottom ring, a bottom beam, a first stand column, a second stand column, a third stand column, a strut, a tying ring and a top ring; and the inflating device is arranged on the support. Compared with the prior art, the large-size lightbox ball disclosed by the invention has the advantages of large spherical angle, a wider information propagation range, high integral lateral stability and wind resistance of a ball body structure, longer service life, and capability of reducing the consumed energy for compensating air pressure losses, and the support can be designed into different shapes according to the requirements on activity styles on the premise of preserving a consistent top ring form.

The invention discloses a novel PVC super-transparent thin film coiling device. The Novel PVC super-transparent thin film coiling device comprises a rack, rollers connected to the two ends of the rack correspondingly, lifting tables symmetrically arranged on the two sides of the rollers, and cross beams located above the rollers. Pressurization rollers are arranged above the rollers. Two bearing seats are symmetrically arranged at the two ends of the rollers. A first synchronizing shaft and a second synchronizing shaft are connected to the two bearing seats correspondingly in a sleeved mode. The ends, far away from the rollers, of the two bearing seats are symmetrically provided with a first swing device and a second swing device correspondingly. A first holding frame and a second holding frame are symmetrically connected to the first synchronizing shaft and the second synchronizing shaft through the first swing device and the second swing device correspondingly. A sliding rail is arranged between a first synchronous gear and a bear and slidably connected with an L-shaped hook plate. Lifting devices are symmetrically arranged on the side, far away from the L-shaped hook plate, of the rack and are connected with pipe hook plates. One sides of the lifting devices are provided with lever mechanisms. An inclined plate with a limiting switch is arranged between the L-shaped hook plate and the pipe hook plates. A first cylinder is arranged above the inclined plate. A controller is arranged above the first cylinder.

A sealing system for a rotor assembly in a gas turbine engine is disclosed. The sealing system may include a seal formed from a side block and an upper seal that seals a gap between a radially outward extending first rotor supply channel in a rotor assembly terminating at an inlet of an axially extending second rotor supply channel that is in fluid communication with an internal blade cooling system of a turbine blade. The seal may include components that enhance the flow of cooling fluids over conventional configurations. In another embodiment, the sealing system may include an integrated sealing block configured to seal a gap between adjacent turbine blades at an intersection between the first and second rotor supply channels. The integrated sealing block may be formed from a radially inward extending leg and central body.

The invention belongs to the technical field of agricultural machinery, and in particular relates to a synchronous low-pressure peripheral air-aspiration type precise seeding device which comprises a rear casing (1), a rear air chamber disc (2), a chain wheel (3), a bearing (4), an air inlet tube (5), a seeding disc (6), a front air chamber disc (7), a front casing (8), a seed cleaning cutter (9), a seed box (10), a seed storage box (11), a seed discharge pressing plate (12) and a seed discharge cutter (13). As the seeding disc of the synchronous low-pressure peripheral air-aspiration type precise seeding device is fixedly connected with an air chamber, pressure loss and member abrasion caused by relative rotation can be reduced; the seeding device is used for feeding seeds by virtue of seed gravities and air pressure, the seed feeding property can be improved, and the air pressure requirements can be met; as the air inlet tube is of integral design, air can be directly fed into the air chamber, and air flow loss caused by connection can be avoided to the maximum extent.

The invention relates to the technical field of cathode closed type fuel cells, and provides a fuel cell and a fuel cell power generation system. The fuel cell comprises a gas distribution plate and a cathode closed type electric pile, the first end face of the gas distribution plate makes contact with the first end face of the cathode closed type electric pile, the first end plate is provided with a cathode air inlet and a cathode air outlet, the first end face is provided with a cathode air inlet groove and a cathode air outlet groove, and the cathode air inlet and the cathode air outlet are communicated with the cathode air inlet groove and the cathode air outlet groove respectively. According to the fuel cell disclosed by the invention, the cathode gas inlet groove and the cathode gas outlet groove are formed in the gas distribution plate, so that the use of a cathode gas distribution pipeline is reduced, the length of the pipeline in a power generation system is reduced, the pipeline structure is simplified, and the gas pressure loss is reduced; and risks caused by complex processes such as gas pipe out-of-phase sealing and the like which must be adopted for achieving insulation between the electric piles when multiple piles of gas circuits are connected in the system are avoided, and integration of a power generation system is facilitated.

This invention relates to a kind of arrangement structure of cooling fin that can smoothly discharge condensed water that condense on the surface of the cooling fin. The feature of the superthin tube heat-exchanger is that hollow level header can make refrigerant flow through; several refrigerant tubes insert in the level header, so it can distribute the refrigerant that flow in the level header; cooling fin that set between the vertical refrigerant tubes said above. In this heat exchanger, several cooling fins are fixed between the above vertical refrigerant tubes with a certain distance. This invention can discharge the condensed water flow from top of the refrigerant tube more easy. This invention can achieve another effect that it can reduce the air pressure losing of the flowing air on the effect of the fan, and prevent the heat reducing.

The invention discloses an air conditioner face blowing air pipe for a pickup truck, relates to the technical field of automobile refrigeration, and aims to solve problems that in the actual use of an existing air conditioner face blowing air pipe, a mixed flow transition section is generally connected to an outlet of an air conditioner box, air blown by an air conditioner is sent to different air outlets in four positions through different branches. Therefore, in the design process, in order to balance air volume distribution, a large amount of design optimization work needs to be conducted on different branch results and pipe type thicknesses, and large design errors always exist when the design target of air volume distribution is achieved. A first face blowing air pipe and a second face blowing air pipe are arranged at the upper end of an air pipe connecting piece, a first side face blowing air pipe is arranged on one side of the second face blowing air pipe, and a second side face blowing air pipe is arranged between the first face blowing air pipe and the second face blowing air pipe. A first side face blowing air pipe opening is formed in one end of the first side face blowing air pipe.