293results about How to "Improved ease of maintenance" patented technology

A high capacity pumper for liquefied gas incorporates multiple pumping systems distributed in a parallel arrangement and in opposing orientation on a transportable platform such as a trailer. Vaporizers incorporate a burner control system utilizing a primary set of burners operating a baseline and a secondary set of burners providing fine regulating control. A system for fracturing formations is now possible using a minimum number of components including the high capacity pumper, a coiled tubing rig and a source of liquefied gas. An improved manifold for a cryogenic plunger pump includes unions and angled connectors between a supply conduit and each of a plurality of pump heads.

In a gas turbine power generation system having a gas turbine engine and a generator connected to the engine, maintenance ease is enhanced by forming the housing to have openable maintenance faces at two of its faces. Installation space is reduced and a compact configuration is achieved by providing a partition that divides the interior space of the housing into two regions into an upper bay and a lower bay, mounting the engine in the upper bay and mounting air intake duct in the lower bay at a location directly under the engine. Noise is reduced by using a partition to define two separate spaces (bays) and mounting the engine and the air intake duct in the upper and lower bays. Noise is also reduced by preventing engine rotation noise from escaping to the outside through the air intake duct. Moreover, it achieves a reduction in the amount of dedicated space required by constituting the air intake duct of a duct section having an air inlet at a plane coincident with that of the maintenance opening and a filter-housing section for removably housing an air filter, thereby enabling a common space to be utilized for that required in front of the maintenance opening and the air inlet.

An object is to provide a combustor that requires a small mounting space for an acoustic damper, that can achieve size reduction, and that can improve the ease of maintenance. A combustor (5) of the present invention includes a combustion cylinder (19) that defines a combustion area (23) therein and an acoustic damper (31) that has a damper cover having an acoustic-damper resonance space communicating with the combustion area (23). The damper cover is provided along the combustion cylinder (19) so as to extend in a direction intersecting an axial direction (L) of the combustion cylinder (19).

Brackets received in an elongated base support both lens portions and internal light bar components. Lens portion longitudinal edges penetrate the outer portion of a gasket channel to engage a gasket member. Lens retainer straps sandwich gasket layers to seal the longitudinal butt ends of lens portions. The lens retainers also penetrate the gasket channel to engage the gasket member. The brackets provide multiple locations for mounting warning light units and related light bar components within the space defined between the base and the lens portions.

A gatherer device of wireless ad-hoc network meter reading system comprises a processor unit, a 485 bus interface unit, a wireless transmitting-receiving unit, and a power supply managing unit; wherein the processor unit is responsible for operation and control of the whole device, the 485 bus interface unit is used for connecting one or multiple electric meters, the wireless transmitting-receiving unit is responsible for interacting data and commands with a concentrator of the wireless ad-hoc network meter reading system, and the power supply managing unit supplies power for the whole device. An operation method of the gatherer device comprises that a command is received by the wireless transmitting-receiving unit and transmitted to the processor unit for processing, that the processor unit sends a request frame to an electric meter, that the processor unit receives a response frame from the electric meter and analyzes the response frame to acquire information of electricity consumption, and that finally the information of electricity consumption is returned to the concentrator through the wireless transmitting-receiving unit. The device and the method in the invention solve problems that the prior micropower wireless communication meter reading manners have much channel interferences, and are relatively low in security, relatively short in communication distances and not well in penetrating capabilities. Furthermore, the device has the advantages of low cost, high cost performance, good instantaneity, safety and reliability, and use and maintenance conveniences.

Disclosed herein is a device for housing a plurality of electrochemical cells, wherein the housing provides stability, temperature control and maximum packing density. The battery module housing comprises a first semi-enclosure and a second semi-enclosure, wherein the first and second semi-enclosure are aligned to form compartments there between. Each compartment is designed to accommodate at least one electrochemical cell, such as a cylindrical battery or a prismatic battery. Each semi-enclosure comprises an interior wall and an exterior wall. The interior and exterior wall align together to form a flow path between the walls through which coolant or any other thermal management medium may flow. The coolant enters the semi-enclosure through a coolant inlet, flows between the interior and exterior walls; then flows out of the semi-enclosure through a coolant outlet.

The invention provides a feature extraction method and a machine learning method and a device thereof. The feature extraction method comprises the steps that data records are acquired; feature extraction configuration items used for limiting how to extract preset features from the data records are acquired, wherein the feature extraction configuration items of each preset feature comprise the source field item and the processing method item, the source field items are used for limiting fields of the data records relevant to each preset feature into source fields, the processing method items are used for assigning quotation on data processing functions which are pre-programmed into executable codes, and the data processing functions are used for executing data processing for extracting all the preset features for field values of the source fields limited by the source field items; data processing is performed on the field values of the data records on the basis of the feature extraction configuration items to acquire feature values of the preset features. According to the feature extraction and machine learning technique, the programming flexibility and the code reusability are enhanced, and the technique is particularly suitable for big data application.

The invention provides an interface parameter verification method and component. The method comprises the steps that a client defines parameters via a client end; an annotation analyzing module analyzes the parameters and sends analysis result data to a verification rule generating module; the verification rule generating module generates self-defined reference data type comparison rules according to the analysis result data; an annotation verification module searches for an attribute corresponding to each attribute of the comparison rules generated by the verification rule generating module in parameter objects and compares attribute values via the self-defined comparison rules; if no corresponding attribute is found or the corresponding attribute values are different, verification fails; otherwise, verification is successful. The interface parameter verification method can perform diversified implementation on frameworks based on multiple formats such as annotation, json, and xml, better support great dependency of parameters and support complex parameter types.

A system (10) for controlling the torque of an induction motor (12) utilizes a flux observer (14). The flux observer (14) receives stator current inputs (16, 18) and a rotor speed estimate (80) and then outputs a rotor flux estimate (20) that provides increased motor control stability at all speeds.

An engine oxygen concentration sensor mounting structure in which an oxygen concentration sensor is mounted in an exhaust pipe connected to an outlet of an exhaust manifold having a plurality of exhaust single pipes. When a straight line is drawn from a detection part of the oxygen concentration sensor positioned within the exhaust pipe so as to be parallel to a section of a centerline of the exhaust pipe closest to the detection part, the straight line passes outside the outlet of the exhaust manifold. This allows the exhaust gases discharged from the exhaust manifold to be sufficiently mixed within the curved exhaust pipe and differences in length of the plurality of the exhaust single pipes to be compensated for. Thus, accurate detection by the oxygen concentration sensor can be secured, even if the lengths of a plurality of exhaust single pipes of the exhaust manifold are nonuniform.

A modular raceway apparatus provides a pre-wired electrical sub-assembly for on-site installation in a building or installation a pre-fabricated building component. The raceway apparatus includes normal power and emergency power tracks. Each power track includes internal wiring connected to one or more connectors for plug-and-play interconnectivity with independent power supplies and other electrical component wiring members. Each raceway track includes multiple track members separated by gaps and a coupling.

The invention discloses a powerful and mechanical automatic-locking hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. The two ends of a cylinder barrel are sealed by a cylinder cover and a cylinder bottom respectively. A guiding column of the cylinder cover is sleeved with a spring. The spring is sleeved with a brake block. The two ends of the spring abut against the cylinder cover and the brake block respectively. The outer circumferential face of the large diameter of the brake block is in sealing fit with the inner circumferential face of the cylinder cover. The end face of the end, with a large-diameter hole, of a locking block abuts against the end face of the step of an inner hole of the cylinder barrel, and the other end face of the locking block abuts against the end face, located at the portion of the cylinder barrel, of the cylinder cover. After a steel ball is put into a steel ball installation hole of a piston, the steel ball installation hole of the piston is matched with an inner hole of the cylinder barrel, and an annular groove of the piston corresponds to a rodless cavity oil port in the cylinder barrel. One end of a piston rod is fixed to a piston rod installation hole of the piston, and the other end of the piston rod penetrates through the cylinder bottom to be located outside the cylinder barrel. According to the powerful and mechanical automatic-locking hydraulic cylinder, the requirement for automatic locking after the piston rod is completely retracted can be met, and the locking state can be kept for a long time under the situation that pressure relief of a hydraulic system is completed or leakage happens until unlocking is actively achieved.

The invention discloses an Ethernet-based FPGA function online upgrading method. The method is applied to the function upgrading of a board card taking an FPGA as a main chip and having an Ethernet interface. A whole functional system comprises an upper computer part and a lower computer part, wherein the upper computer is mainly used for programming file reading, fragmentation, Ethernet packet assembling and sending; and the lower computer is mainly used for flash erasure and reading / writing, Ethernet packet analysis and feedback of an upgrading progress to the upper computer. By use of the method, the FPGA board card can be directly subjected to remote online upgrading through an Ethernet interface, so that unnecessary troubles and risk due to apparatus dismounting are avoided, the convenience and maintainability of device upgrading are improved, and the upgrading cost is reduced.

A transformer station automatic system performs functional combination and optimized design on secondary equipment (including a measuring instrument, a signal system, relay protection, an automatic device, and a telecontrol device) of a transformer station so as to achieve comprehensive automatic functions of the main devices of the transformer station, a power transmission line, and a power distribution line by using advanced computer technology, modern electronic technology and communication technology, and signal processing technology, wherein the comprehensive automatic functions includes automatic monitoring, measurement, automatic control, microcomputer protection, and communication with a control center.

An object is to provide a combustor that requires a small mounting space for an acoustic damper, that can achieve size reduction, and that can improve the ease of maintenance. A combustor (5) of the present invention includes a combustion cylinder (19) that defines a combustion area (23) therein and an acoustic damper (31) that has a damper cover having an acoustic-damper resonance space communicating with the combustion area (23). The damper cover is provided along the combustion cylinder (19) so as to extend in a direction intersecting an axial direction (L) of the combustion cylinder (19).

The invention discloses switch equipment which comprises master control cards, switching cards and a line card, wherein the master control cards comprise control processors and PCIE (peripheral component interface express) switching chips; the switching cards comprise PCIE switching chips and switched network chips; the line card comprises a PCIE switching chip and a packet processing chip; in the master control cards, the PCIE switching chips are connected with the control processors by up PCIE interfaces, and connected with up PCIE interfaces of the PCIE switching chips of the line card and the switching cards by down PCIE interfaces and control buses; the PCIE switching chips of the line card and the switching cards are connected with a packet processing chip and a switched network chip of a board card by down PCIE interfaces respectively; PCIE networks form a centralized control plane; and the packet processing chip of the line card is connected with the switched network chips of the switching cards by an internal data bus to form a distributed data plane. With the adoption of the switch equipment, the realization complexity of software required to run on the switch equipment can be reduced, and the processing efficiency of the switch equipment is improved.

The invention discloses a power grid visualization method based on plugins. The method comprises the following steps that a power grid visualization system is started, and a primitive plugin and a visualization special effect plugin register to the power grid visualization system; primitive instances of the primitive plugin are initialized, and primitive files are generated; according to the primitive files, the primitive instances are constructed, and all the primitive instances register to a primitive list; after the primitive list registers, a visualization special effect thread and a primitive drawing thread are triggered; the primitive drawing thread draws primitives in the primitive list, and visualization special effects are overlapped by the visualization special effect thread according to the primitives sequentially arranged in the primitive list. A unified standard interface is adopted by the primitive plugin and the visualization special effect plugin, the plugins conforming to the standard interface can be dynamically loaded into the power grid visualization system, and therefore the expandability, openness and maintainability of the power grid visualization system are improved.

A hydraulic excavator includes an engine, a selective catalytic reduction apparatus, an outer cover, a first column member, a reducing agent tank, and a reducing agent pump. The selective catalytic reduction apparatus processes exhaust from the engine. The first column member supports the outer cover. The reducing agent tank retains a reducing agent. The reducing agent pump supplies the reducing agent from the reducing agent tank to the selective catalytic reduction apparatus. The reducing agent pump is attached to the first column member.

A hydraulic excavator includes an engine, a selective catalytic reduction apparatus, an outer cover, a first column member, a reducing agent tank, and a reducing agent pump. The selective catalytic reduction apparatus processes exhaust from the engine. The first column member supports the outer cover. The reducing agent tank retains a reducing agent. The reducing agent pump supplies the reducing agent from the reducing agent tank to the selective catalytic reduction apparatus. The reducing agent pump is attached to the first column member.

The invention discloses a big specific capacity buoyancy force adjustment and emergency self-rescue integrated device and a submersible machine. The integrated device includes a water chamber (1), atleast one machine pump valve assembly (3), a detection module and a control module (2); one port of the machine pump valve assembly (3) is communicated with a sea connection port of the submersible machine, and the other port is communicated with the water chamber (1) to achieve injection and discharging of sea water; the detection module and a machine pump assembly (8) are electrically connectedwith the control module (2) separately; the detection module sends detected signals to the control module (2), and the control module (2) controls the machine pump valve assembly (3) to be switched onor switched off to achieve buoyancy force adjustment according to the signals. The big specific capacity buoyancy force adjustment and emergency self-rescue integrated device and the submersible machine have the advantages that not only can the normal buoyancy force adjustment operation capability of the amphibious submersible machine be ensured, but also it can be ensured that the submersible machine can safely float up to be recycled under an emergency situation.

A clamp apparatus is equipped with a body, and a drive unit having a piston displaced under the supply of a pressure fluid. A clamp arm is disposed rotatably on the body. In addition, a piston rod of the drive unit is connected detachably with respect to a displaceable body of a driving force transmission mechanism which is disposed in the interior of the body. Upon detachment of a connector of the piston rod from a connecting recess of the displaceable body, the state of connection between the drive unit and the driving force transmission mechanism is released.

The invention discloses a system used for achieving a human-computer interface of a robot and based on a demonstrator. The system comprises a robot demonstrator, a robot controller and a robot body. The robot controller is respectively connected with the robot demonstrator and the robot body. The robot body is used for executing commands given by the robot controller. A human-computer interface unit is arranged on the robot controller and displays the human-computer interface through the robot demonstrator. The invention further discloses a method for achieving the human-computer interface of the robot and based on the demonstrator. A webpage-type human-computer interface program is generated by using a webpage editor, stored in the robot controller and finally operated in the robot controller and displays the human-computer interface on the robot demonstrator. The method completely omits traditional external human-computer interface devices, reduces cost of a robot system, and improves safety and reliability and maintainability of the robot system.

The invention discloses an ADS-B (Automatic Dependent Surveillance-Broadcast) data collection method. According to the ADS-B data collection method, ADS-B signal end machines are arranged on signal base stations of N mobile communication operating companies, wherein the ADS-B signal end machines are connected to computers of machine rooms in the base stations of the mobile communication operating companies through data wires and are further connected to an internet in order to transmit collected ADS-B signal messages to a cloud computing data center to process. The ADS-B data collection method comprises the following steps of: packing ADS-B messages sent by an aircraft and received by the ADS-B signal end machines into UDP (User Datagram Protocol) messages for network transmission; accessing the internet through the base stations; transmitting the data packet to a distributive cloud computing data center; receiving the UDP messages by the distributive cloud computing data center, and then parsing and restoring the UDP messages into the ADS-B messages; and carrying out the high-time-resolution multi-point message detecting de-interleaving algorithm to obtain ADS-B data.

A motor / generator system is provided in which a casing (111) of a motor / generator (MG) is connected to a casing (15) of a displacement type expander of a Rankine cycle system, and a rotor (117) of the motor / generator (MG) is supported on a shaft end of an output shaft (32) extending from the expander to the interior of the motor / generator casing (111). Providing communication between an internal space of the expander casing (15), where steam that has leaked from an expansion chamber of the expander is present, and an internal space of the motor / generator casing (111) via a through hole (15a) enables the motor / generator (MG), which reaches a high temperature due to generation of heat in a coil (124), to be cooled by leaked steam that has entered via the through hole (15a), and covering the low temperature expander casing (15) with the high temperature motor / generator casing (111) enables the escape of heat from the expander casing (15) to be minimized, thereby enhancing the efficiency of the expander. It is thus possible to cool effectively the motor / generator connected to the displacement type expander and at the same time minimize the escape of heat from the expander, thereby enhancing the efficiency.