63results about How to "Increase flow pressure" patented technology

The invention relates to an oil layer three-section block removing technology with excellent block removing effect. A block removing agent will be injected at three sections; then, clear water will be injected after the reaction of 4 to 24 hours at each section; the quantity of clear water will be 1 to 2 times of the sum between the volume of an oil pipe and the volume of the circular space from the bottom of the oil pipe to the top of a perforation interval. Because the composition and function of the block removing agents different from each other, the invention can be applied in a broad scope to adopt to the needs in various stratum, realize excellent block removing effect with the removing rate of over 75 percent, thus satisfying the industrial needs.

There is disclosed a downhole packer for use in a well bore, and in particular, a packer which can be used for downhole testing. In an embodiment of the invention, a packer tool (10) for mounting on a work string to provide a seal against a tubular (32) is disclosed, the packer tool comprising a body (12) with one or more packer elements (18) and a sleeve (14), the packer tool being set by movement of the sleeve relative to the tool body compressing the one or more packer elements, wherein the tool has a plurality of bypass channels (16) to provide a fluid path past the packer elements, the sleeve including at least owe anchoring member (22, 50), the at least one anchoring member being actuate to contact the tubular by fluid pressure from the bypass channels when the packer is set.

A method and a dental implant system for accessing selected intra-cavity locations there-through that includes: (a) a dental implant having a plurality of openings configured for being implanted in an intra-cavity area of a patient, wherein each one of the plurality of openings allows access from an external area of the dental implant to a space in the intra-cavity area between the implant and a jawbone of the patient, when the dental implant is installed in the intra cavity; and (b) one or more directing element that is removably securable to the dental implant, wherein the directing element includes openings and is configured to allow access to one or more specific locations at this space through a selected at least one of the plurality of openings of the dental implant, when secured thereto.

This invention discloses screw tooth shape with unequal tooth number for high flow high pressure triangle screw pump, which contains double-thread male screw slave screw and six-thread female screw active screw. Said invention has shorter seal line, fine seal property, multiple increased output flow and pressure.

A fuel injection valve having a valve body (5), in which a pistonlike valve member (7) is guided longitudinally displaceably in a bore (15) embodied as a blind bore. A conical valve seat (23) and at least one injection port (25) are embodied on the bottom face of the bore (15), and the injection port connects a pressure chamber (11), formed between the portion (107) of the valve member (7) toward the combustion chamber and the bore (15), with the combustion chamber. On the end toward the combustion chamber of the valve member (7), there is a valve member tip (13), on which a first conical face (30), adjacent to the valve member (7), and a second conical face (32), disposed on the combustion chamber side of the first conical face, are embodied. The cone angle (alpha) of the first conical face (30) is less, and the cone angle (beta) of the second conical face (32) is greater, than the cone angle (gamma) of the valve seat (23), so that a sealing edge (40) is formed at the transition of the two conical faces (30, 32). Embodied on the first conical face (30) is an encompassing annular groove (35), which limits an increase in the hydraulically effective seat diameter caused by the plastic deformation of the sealing edge (40) and the valve seat (23) to a precisely defined extent (FIG. 2).

The invention discloses a piston type oil-less air compressor. The piston type oil-less air compressor comprises a machine base, a crank case fixed on the machine base, a primary cylinder I, a primary cylinder II, a primary cylinder III, an intermediate cooler, a primary air-water separator, a secondary cylinder I, a secondary cylinder II, an after-cooler, a secondary air-water separator and an air storage tank fixed on the machine base. The primary cylinder I, the primary cylinder II and the primary cylinder III are fixed on the crank case respectively and distributed in a fan-shaped mode, an included angle between the primary cylinder I and the primary cylinder II and between the primary cylinder III and the primary cylinder II are 40-55 degrees, and the secondary cylinder I and the secondary cylinder II are arranged on the left side and the right side of the crank case respectively. By adopting the technical scheme, the piston type oil-less air compressor is compact in structure, a space occupied by the air compressor is saved, the installing area of a valve is increased, cooling is facilitated, the effective volume flow and exhaust pressure of the piston type oil-less air compressor are improved, an application range is expanded, the service life and the air quality are prolonged and improved, and the working reliability is improved.

An active surge chamber for use in a paint supply system comprising a paint channel, a fluid chamber connected to a pressurised fluid supply, a diaphragm, a spring, and means responsive to movement of the diaphragm for effecting connection and disconnection of the pressurised fluid supply to the fluid chamber and for relieving pressure of fluid in the chamber. The paint channel is sealingly separated from the fluid chamber by the diaphragm. The spring has a spring rate such that the force exerted on the diaphragm by the spring restricts movement of the diaphragm over a selected range of pump outlet pressures in order to attenuate the movement of the diaphragm and reduce the susceptibility of the system to unwanted oscillation. Pressure fluctuations in a paint flow induced by usage of a reciprocating pump upstream of the active surge chamber are minimised.

Provided is a heat exchanger, and more particularly, a heat exchanger including a pair of header tanks formed in parallel, spaced apart from each other by a predetermined distance, a plurality of tubes having both ends fixed to the pair of header tanks to form a channel for a heat exchange medium; a plurality of fins fixed to abut between the tubes, and a plurality of louvers formed at the fins to contact air passing through the circumference of the fins, in which the louvers are formed to be asymmetrical to each other based on a center in a width direction of the fin or louver columns formed at one side or the other side of the fin in an asymmetrical form are alternately formed in a length direction of the fins to improve a flow of cooling air, thereby improving a heat radiation performance.

The invention discloses a power generation device capable of applying wave energy. The device comprises an integration water level system, a generator set and an adjusting unit; the integration waterlevel system comprises a wave energy acting plate, a water flow pressurizer, a check valve, a flow inlet pipeline, a flow outlet pipeline and an impounding reservoir; the generator set comprises a flow outlet pipeline, a check valve and a bulb-type water-turbine generator set, and the adjusting unit is an extremely-low-head mixed flow reversible pump turbine. During work, unstable wave energy canpush the acting plate, the water flow passes through a fluid pressurizer, then flows to the impounding reservoir and serves as a water source of the generator set and the adjusting unit to be used foracting, and finally, the water flow is converted into electric energy. Traditional power generation and new energy power generation are combined, the device is a green and environment-friendly powergeneration device and has stability, the device has the wide application prospect and popularization value, and the device is of great significance in new energy development of the China.

The embodiment of the invention provides a vehicle temperature control system which comprises a vehicle-mounted control unit temperature control flow path for controlling the temperature of a vehicle-mounted control unit by passing two or more temperature control branches, wherein at least one temperature control branch passes through the interior of the vehicle-mounted control unit; a battery temperature control flow path which is used for carrying out temperature control on the plurality of battery units, and is shunted to a plurality of parallel branches to respectively carry out temperature control on the plurality of battery units, wherein each parallel branch corresponds to one battery unit; a heat exchange unit which comprises an output port and a backflow port and is used for providing temperature control fluid for the vehicle-mounted control unit temperature control flow path and the battery temperature control flow path; and a control valve unit which is used for controllingthe vehicle-mounted control unit temperature control flow path and the battery temperature control flow path to be connected in parallel or in series. Through the vehicle temperature control system, layout of the temperature control flow path can be optimized, and the temperature control efficiency of the vehicle-mounted control unit and the battery is improved.

The invention relates to a semi-automatic torque coupling device in the field of a petroleum and gas well drilling device. The device is mainly composed of an upper shell, a protection device, a pressure transfer hole, a pressure sensing device, a stepping motor, a fixed rib plate, a transmission shaft, a seal device, a bypass hole, a spline shaft, a bearing, a lower shell and a spline leading-in body. In the drilling process, torque generated by a ground device is transmitted to a well bottom drill bit along a drill combination, the semi-automatic torque coupling device is mounted in the drill combination according to drill well design, an operator uses opening and closing of a motor in a drilling fluid remote control part so as to control the spline shaft to stretch out of or retract and be locked, torque connection and disconnection are achieved, the semi-automatic torque coupling device can effectively solve the pressure dragging problem commonly existing in the drilling process of complex structure wells of long horizontal segment horizontal wells, large displacement wells and the like, and the device has the important significance in further reducing sliding friction resistance between the drill combination and the well wall, improving the well hole smoothness and improving the drilling efficiency of the complex structure wells.

The invention belongs to the technical field of fluid delivery, and relates to a fluid pump and an excitation element. The fluid pump comprises a piezoelectric vibrator, a vibration diaphragm and a planar part, wherein the piezoelectric vibrator comprises a vibration substrate and a piezoelectric element which is arranged on one side of the vibration substrate; the vibration diaphragm is arrangedon one side of the vibration substrate; the vibration diaphragm is arranged on the other side of the vibration substrate, and one side, close to the vibration diaphragm, of the vibration substrate isprovided with a sunk cavity; and the planar part is arranged on one side, far away from the vibration substrate, of the vibration diaphragm in a manner of being close to and opposite to the vibrationdiaphragm, and at least one vent hole is formed in the area, opposite to the sunk cavity, of the plane part; and a certain frequency of alternating voltage is applied to the piezoelectric element, thevibration substrate is bent and deformed to enable the vibration diaphragm to generate resonance, the vibration diaphragm is bent and deformed along with the vibration substrate in the same direction, and then the fluid pump sucks the fluid from the vent hole and is discharged from the circumferential direction of the vent hole. According to the fluid pump and the excitation element, higher output pressure and output flow can be obtained, great market value is achieved, and the fluid pump and the excitation element is worthy of popularization.

The present invention relates to the field of internet data transmission, especially to a data transmission method and device, a mobile terminal and a storage medium. The method comprises the steps of: constructing a front-end page having a cross-platform feature and configured to perform interaction with rear-end systems; deploying a set of encryption and decryption rules supported by the rear-end systems, and cooperating with the encryption and decryption rules to set a key generation system configured to generate keys and management keys; employing the key generation system and the encryption and decryption rules to generate ciphertext, and taking the ciphertext as transmission parameters and transmitting the ciphertext to the front-end page as a data destination; and receiving the ciphertext sent by the front-end page, and employing the key generation system and the encryption and decryption rules to decode the ciphertext to plaintext. The data transmission method and device, the mobile terminal and the storage medium achieve decoupling of data interaction between the rear-end systems, avoid occupation of transmission channel resources and relieve the flow pressure and improvethe safety of the data transmission, and the data are not easy to be broken by brute force.

The embodiment of the invention provides a filtering device and a water cooling system, the filtering device comprises a filter body, wherein the filter body defines a cavity, the cavity is internally provided with a filtering structure, a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline and the liquid outlet pipeline are communicated with the cavity, and the filtering structure is located at the joint of the liquid outlet pipeline and the filter body; a liquid discharging hole which is formed in one end of the filter body and communicated with the cavity, wherein a liquid flowing path between the liquid inlet pipeline and the liquid discharging hole is different from a liquid flowing path between the liquid inlet pipeline and the liquid outlet pipeline; a liquid discharging pipe which is connected with the liquid discharging hole; and a first valve which is mounted on the liquid discharging pipe to control the liquid discharging pipe to be opened or closed. According to the embodiment of the invention, the filter structure can be cleaned without manually disassembling the filter body, the cleaning process is simple, and the physical output of cleaning personnel is small, so that the consumed time is short, the labor cost is low, and the cleaning efficiency is high.

The invention relates to the field of gear grinding machining processing equipment, and discloses a driving gear fixing and machining device. The device comprises a base and a rotating table rotationally connected to the base, wherein a sliding block is arranged on the base in a sliding mode, a grinding part is arranged on the sliding block, a driving rod is further rotationally connected to the position, on the outer side of the rotating table, of the base, a driving gear which can mesh with a gear to be machined is fixedly connected to one end of the driving rod, an air bag capable of abutting against the sliding block is further arranged on the base, the air bag is connected with an air inflation pipe and an air suction pipe, a one-way pressure valve which only allows airflow to enter the air bag is arranged on the air suction pipe, a one-way pressure valve allowing the airflow to be discharged out of the air bag is arranged on the air inflation pipe, the end, far away from the airbag, of the air inflation pipe is connected with an air inlet pipe, a turbine is rotationally arranged in the air inlet pipe, and the end, away from the driving gear, of the driving rod penetrates into the air inlet pipe and is fixedly connected with the turbine. According to the device, the problem that an existing gear grinding device is tedious to operate due to the fact that a rotating table is required to be rotated by hands, and the machining efficiency is influenced is solved.