摘要:
A compressor of a type in which a plurality of pistons reciprocate in cylinders, the improved compressor in which a mechanism is provided to reduce pulsating of suction pressure in the cylinder head. The inside of the cylinder head is partitioned into a high pressure chamber on the side of the center and a low pressure chamber on the side of the periphery by means of bulkhead formed on the cylinder head. The low pressure chamber communicates the suction holes and the discharge opening formed on the cylinder head. The outer peripheral wall of the low pressure chamber is arranged to reduce a resistance of gas passing through the low pressure chamber as the convex portion constituting the periphery of the connecting bolt and the concave portion constituting the peripheries of the suction holes are connected by means of a connecting portion having a smooth curved surface.
摘要:
A compressor of a type in which a plurality of pistons reciprocate in cylinders. A mechanism is provided to reduce pulsating of discharge pressure in the cylinder head. A high pressure chamber formed in the cylinder head is partitioned by a partition plate into a first high pressure chamber communicating with a plurality of discharge holes in the valve plate by means of a discharge valve and a second high pressure chamber communicated with a discharge opening formed in the cylinder head, and the pulsating is reduced by the passing of the gas through the first high pressure chamber and the second high pressure chamber.
摘要:
A compressor of a type in which a plurality of pistons reciprocate in cylinders, the improved compressor in which a mechanism is provided to reduce pulsating of suction pressure in a cylinder head. The inside of the cylinder head is partitioned into a first low pressure chamber and a second low pressure chamber and a high pressure chamber by means of a partitioning means. The first low pressure chamber is communicated with a suction opening formed on the cylinder head, and the second low pressure chamber is communicated with a plurality of suction holes formed on a low pressure chamber are communicated by means of the suction communication hole formed on the partitioning means, and each of the suction communicating holes is positioned at an equal distance from the two suction holes, and the phase difference is provided on the pulsating produced by the passing of the gas through the suction opening.
摘要:
A swash-plate type rotary compressor includes a plurality of cylinders disposed in circumferentially equi-distantly spaced relation to each other around a drive shaft having mounted thereon a swash plate for rotation therewith. The swash plate is rotated to cause pistons to be slidingly reciprocated in the respective cylinders to draw gas containing lubricant and to compress same. Guide walls are provided on both sides of a swash plate chamber for guiding gas introduced into the swash plate chamber to flow over entire side surfaces of the swash plate from an outer periphery toward a center thereof. A plurality of gas guiding passageways are each located between each pair of adjacent cylinders, for guiding the gas flowing to a central portion of the swash plate into at least one low pressure space.
摘要:
In an improved swash plate type compressor in which a first end block, holding a first valve plate against one end of the cylinder block, defines a first input plenum and an output plenum with input and output valve means for a first set of cylinder chambers, a partition plate is secured between the other end of the cylinder block and a second end block and holds a second valve plate against that end of the cylinder block, defining for a second set of cylinder chambers a second input plenum with input valve means and an output chamber with an output valve means. The second end block defines inlet and outlet buffering chambers to which an inlet and an outlet open. The cylinder block is formed with an input transfer passage communicated at its ends to the first and second input plenums. The partition plate is formed with an output transfer aperture for the output chamber, communicating it to the outlet buffering chamber. Also, a means communicates from the inlet buffering chamber to the input transfer passage. Thereby, input and output pulsations are well attenuated.
摘要:
A piston seal device for a reciprocating compressor, having a piston slidably mounted in a cylinder bore and having a circumferential groove, and a resilient piston ring fitted in the circumferential groove of the piston and sealingly engageable with the cylinder bore. The circumferential groove includes a centrally recessed bottom wall for causing the piston ring to be resiliently and arcuately deformed to have a pair of opposite outer corner edges sealingly engageable with the cylinder bore. The piston sealing device thus provides a great sealing force both at the discharge stage and the intake stage, thereby improving the efficiency and lubrication of the compressor.
摘要:
It is to provide a membrane/electrode assembly excellent in the power generation characteristics under low or no humidity conditions and under high humidity conditions, and an electrolyte material suitable for a catalyst layer of the membrane/electrode assembly.It is to use an electrolyte material, which comprises a polymer (H) having ion exchange groups converted from precursor groups in a polymer (F) having repeating units (A) having a precursor group represented by the formula (g1) and repeating units (B) based on a perfluoromonomer having a 5-membered ring, and having a density of at most 2.03 g/cm3, the polymer (H) having an ion exchange capacity of from 1.3 to 2.3 meq/g dry resin: wherein Q1 and Q2 are a perfluoroalkylene group having an etheric oxygen atom, or the like, and Y is F or the like.
摘要翻译:提供一种在低或无湿度条件下和高湿度条件下发电特性优异的膜/电极组件,以及适用于膜/电极组件的催化剂层的电解质材料。 使用电解质材料,其包含在具有由式(g1)表示的前体基团和重复单元(重复单元)的重复单元(A)的聚合物(F)中由前体基团转化的离子交换基团的聚合物(H) B)基于具有5元环的全氟单体,并且密度为至多2.03g / cm 3,所述聚合物(H)的离子交换容量为1.3-2.3meq / g干树脂:其中Q1和Q2 是具有醚性氧原子等的全氟亚烷基,Y是F等。
摘要:
The present invention is directed to a process of making α-aminooxyketone and α-hydroxyketone compounds. The synthetic pathway involves reacting an aldehyde or ketone substrate and a nitroso substrate in the presence of a catalyst of the formula (IV): wherein Xa-Xc represent independently nitrogen, carbon, oxygen or sulfur and Z represents a 4 to 10-membered ring with or without a substituent and optionally a further step to convert the α-aminooxyketone compound formed to the α-hydroxyketone compound which results in α-aminooxyketone and α-hydroxyketone compounds with high enantioselectivity and high purity. The present invention is also directed to a catalytic asymmetric O-nitroso Aldol/Michael reaction involving a cyclic α,β-unsaturated ketone substrate and a nitroso substrate. This methodology involves reacting the cyclic α,β-unsaturated ketone substrate and the nitroso substrate in the presence of a proline-based catalyst, to provide a heterocyclic product.
摘要:
In a substrate processing control method, a first process acquires a first-reflectance-spectrum of a beam reflected from the first-fine-structure and a second-reflectance-spectrum of a beam reflected from the second-fine-structure for each of varying-pattern-dimensions of the first-fine-structure when the pattern-dimension of the first-fine-structure is varied. A second process acquires reference-spectrum-data for each of the varying-pattern-dimensions of the first-fine-structure by overlapping the first-reflectance-spectrum with the second-reflectance-spectrum. A third process actually measures beams reflected from the first and the second-fine-structure, respectively, after irradiating light beam on to the substrate and acquiring reflectance-spectrums of the actual-measured beams as actual-measured spectrum data. A fourth process compares the actual-measured spectrum data with the respective reference-spectrum data and acquiring, as the measured pattern-dimension, one of the varying-pattern-dimensions corresponding to reference-spectrum data that is closely matches with the actual-measured spectrum data. A final process ends the processing of the substrate if the measured pattern-dimension reaches a value.
摘要:
In a plasma processing method, a correlation between substrate type data and optical data is obtained by using a multivariate analysis; substrate type data is obtained from optical data based on the correlation when initiating a plasma processing; and a substrate type is determined by using the obtained substrate type data. Further, a setting data set corresponding to the determined substrate type is selected from setting data sets, each for detecting a plasma processing end point of the plasma processing, each of the setting data sets being stored in advance in a data storage unit; an end point of the plasma processing is detected based on the selected setting data set; and the plasma processing is terminated at the detected end point.