50results about How to "Improve temperature rise performance" patented technology

In an exhaust manifold of a four-cylinder engine four cylinders of which line up in order of cylinder #1, cylinder #2, cylinder #3 and cylinder #4, temperature rise performance of a manifold catalyst improves by shortening a total length of the exhaust manifold while preventing exhaust gas interference between the cylinders. Therefore, an exhaust manifold branch of cylinder #1 and an exhaust manifold branch of cylinder #4 in outward sides of the engine that are not fired in succession are made convergent with its convergence angle θ1 being equal to or below 20 degrees to form a first convergent exhaust manifold branch and an exhaust manifold branch of cylinder #2 and an exhaust manifold branch of cylinder #3 between the cylinder #1 and cylinder #4 that are not fired in succession are made convergent at a minimum distance having a laterally projected shape to form a second convergent exhaust manifold branch. The first and the second convergent exhaust manifold branches are thereafter convergent at a convergence angle θ3 from 0 degrees to 20 degrees.

A honeycomb filter includes a cell having one open end and another closed end that serves as a fluid flow path and a cell having one closed end and another open end, wherein the cells are alternately disposed. The honeycomb filter includes an undeposited region in an upstream region of a partition portion, which has no trapping layer and has a length of 5% or more and 30% or less of the length of the inlet cell. The upstream region of the partition portion includes an undeposited region having an area of 10% or more of that of the cell in a cross-section perpendicular to the exhaust gas flow direction. The undeposited region with no trapping layer in the upstream region decreases the permeation resistance of the partition portion in the upstream region and facilitates fluid passage through the partition portion in the upstream region.

A spark plug is provided capable of speedily burn off carbon adhered on an insulator. With this spark plug, in order to improve the temperature rise performance of a front end side of an insulator 10, an amount of protrusion H (mm) of the insulator 10, a front-end side volume Vi (mm3) of the insulator 10, and a front-end side volume Vc (mm3) of a center electrode 20 are respectively defined. In consequence, it is possible to improve the recovery property of carbon fouling while retaining the voltage resistance of the insulator 10 and the durability of the center electrode 20. In addition, since the recovery property of carbon fouling improves, it is possible to prevent the occurrence of side sparks generated from the center electrode 20 to a metal shell 50 along the insulator 10, thereby making it possible to stably ensure proper ignition of an air-fuel mixture.

A honeycomb structure includes a pillar-shaped honeycomb structure body having porous partition walls surrounding a plurality of cells which extend from a first to a second end face and which form flow channels of a fluid, and a circumferential wall enclosing the partition walls, wherein, specific cell of the cells is provided with a pair of projection which projects into the cell from the partition wall, the projection projects, in at least a pair of opposed partition walls among the partition walls constituting the cell, into the cell from a first and a second side, and which is provided continuously in a direction the cell extends, and in the case where the width of a top part of the projection is denoted by W1, and the width of a bottom part of the projection is denoted by W2, W1>W2 holds, and W2 / W1 is 0.5 to 0.9.

The ultra-high-efficiency 750-watt 2-pole energy-saving and environmentally friendly motor is characterized in that the inner and outer diameters and length dimensions of the stator and rotor cores, the shape and size of the stator and rotor slots, and the number of slots have been coordinated and designed as a whole, which greatly reduces the stator and rotor. and the loss of the iron core; then add punching holes on the stator and rotor punching sheets to form iron core holes, increase heat and temperature convection in the motor, reduce and slow down the temperature rise; use special cast aluminum for the rotor to effectively improve the conductivity and heat dissipation effect; the stator The winding is tapped at half of the coil, which greatly reduces the loss of harmonic components and further reduces iron loss and copper loss. The comprehensive effect of various schemes has greatly reduced the power loss, so that the input power of this product is only 0.881kW under the premise of a stable output power of 0.75kW, and the energy conversion efficiency has reached 85.2%, which exceeds the highest level of the country's YE4 energy efficiency standard , also exceeded the highest international level IE4 grade standard, reached the international advanced level.

The invention provides a vacuum switch module for a nitrogen insulated ring main unit. The layout and installation of the vacuum switching module in the nitrogen insulated ring main unit are greatly optimized, and a small-sized and compact vacuum switch is provided under the premise of satisfying insulation and temperature rising requirement. The vacuum switch module comprises a vacuum arc extinguish chamber, a metal mounting frame, an insulating supporting plate, a supporting column insulator, a fixed frame and a contact spring system, wherein the insulating supporting plate is horizontally fixed at the upper part of the metal mounting frame; the upper end of the vacuum arc extinguish chamber is perpendicularly fixed on the lower part of the insulating supporting plate while the lower end is fixedly arranged on the fixed frame; the fixed plane of the metal mounting frame and the insulating supporting plate is lower than the upper plane where the vacuum arc extinguish chamber and the insulating supporting plate are fixed; the contact spring system is mounted in the fixed frame and used for connecting a movable contact of the vacuum arc extinguish chamber to supply operating power; and one end of the supporting column insulator is fixed on one side of the metal mounting frame while the other end is fixed on the fixed frame.

A honeycomb filter includes a pillar-shaped honeycomb structure having porous partition walls placed, surrounding a plurality of cells which serve as fluid through channels extending from an inflow end face to an outflow end face; and porous plugging portions provided either at the ends on the inflow end face side of the cells or at the ends on the outflow end face side of the cells, wherein the plugging portions include plugging portions that have voids therein, and in the plugging portions having the voids, porosity including the voids as pores ranges from 68% to 83%.

The invention relates to a method and system for improving target frequency control precision of a compressor after defrosting of an air conditioner. The method includes the steps that an outdoor environment temperature T0 of the air conditioner before defrosting is detected; an outdoor environment temperature T1 of the air conditioner after defrosting is conducted and before the air conditioner starts heating again is detected; the outdoor environment temperature difference delta T is calculated as T1-T0; the delta T is compared with a preset value A, a target frequency of the compressor is determined according to a comparison result; if delta T is larger than or equal to A, the target frequency of the compressor is the frequency corresponding to T1; if delta T is smaller than A, the target frequency of the compressor is the frequency corresponding to T0. By means of the method and system, influences of heating of an outdoor heat exchanger on an outdoor environment temperature detection unit during defrosting can be effectively prevented, so that the target frequency of the compressor is more accurate when the air conditioner starts heating again, and the temperature raising effect of the air conditioner can be effectively improved after defrosting is carried out and after the air conditioner starts heating again.

The disclosed fixing apparatus includes: a magnetic field generation apparatus for generating a magnetic field; a fixing belt for emitting heat generated due to the magnetic field; and first and second thermally sensitive magnetic alloys arranged inside the fixing belt. A first Curie point of the first thermally sensitive magnetic alloy and a second Curie point of the second thermally sensitive magnetic alloy are different from each other.

The invention provides a plug-in base of a molded case circuit breaker. The molded case circuit breaker can be connected with and disconnected from an electric loop in a plugging manner through the plug-in base. In order to achieve the purpose, the plug-in base of the molded case circuit breaker is designed and comprises a plug, a fixing column, a cover, a base shell, an outer busbar, a fixing angle plate, a flexible connector, a pressing plate, a limiting rod and an elastic piece, wherein the flexible connector and the outer busbar are fixed to form a connector, and the connector penetrates through and is installed in an installation base shell and is buckled and fixed through a cover. The flexible connector is arranged in the connector, and the flexible connector can be aligned with a connecting hole in the cover while moving up and down in the base shell through a pressing plate guide groove and a limiting characteristic in the base shell, so that when the plug is connected with the flexible connector, the plug can be automatically adjusted to be aligned with the flexible connector, push and compress the elastic piece and generate clamping force, and the flexible connector and the plug are tightly attached and clamped. The plug-in base has the characteristics of reliable contact, large clamping force, large contact area, low energy consumption, low copper consumption and the like.