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    • 36. 发明专利
    • REED VALVE OF COMPRESSOR
    • JPH03255280A
    • 1991-11-14
    • JP4928990
    • 1990-03-02
    • HITACHI LTD
    • TAKANO KAZUAKISHIODA SUSUMUMUNAKATA AKIHIRO
    • F04B39/10F16K15/16
    • PURPOSE:To shorten the whole length of a valve in addition to satisfying requirement for the length of the flat section of a valve guard by shortening the length of a bearing generation section by making the external diameter of the contacting section of a clamping means to a valve guard smaller than the external diameter of the head section. CONSTITUTION:A portion 5b, the diameter of head section of which is smaller than that of the head section 5a of a bolt 5 for clamping and fixing a plate 4 whose port 3 is opened, reed valve plate 1, and valve guard 2, is formed under the head section 5a. The portion 5b is brought into contact with the valve guard 2 and clamped. Therefore, although the range of bearing caused by clamping extends to the range of from the external periphery of the portion 5b whose diameter is smaller than that of the head section 5a to an angle of 45 deg., a bearing generation range becomes a range l'2 of a diameter smaller than that of a large external diameter head portion 5a. Therefore, the required length l'1 of the flat section of the valve guard 2 can be shortened in addition to satisfying requirement, and the whole length of a valve can be shortened.
    • 37. 发明专利
    • SWASH PLATE TYPE COMPRESSOR
    • JPH02181077A
    • 1990-07-13
    • JP36689
    • 1989-01-06
    • HITACHI LTD
    • TAKANO KAZUAKIYOSHIKAWA TOMOAYAMACHIMURA HIDENORIINOUE TSUNEYOSHI
    • F04B27/08F04B27/10
    • PURPOSE:To make ice machine oil ooze out of the surface of a swash plate to obtain excellent lubrication by forming a recessed part to become a blockaded space after jointing together on the jointing part with a shaft of the swash plate made of porous sintered alloy, and enclosing ice machine oil in the blockaded space. CONSTITUTION:A swash plate chamber 4 is formed out of a pair of cylinder blocks 1,1' opposing with a swash plate 2 made of porous sintered alloy between, and a shell 3. Further, a shaft 5 jointing with the swash plate is supported with respective cylinder blocks 1,1' through a pair of radial bearings 6,6'. In this case, a recessed part to become a blockaded space 7 after jointing with the shaft is formed in the jointing part of the swash plate 2. Further, ice machine oil is enclosed in this blockaded space 7. At necessary time, pressure in the blockaded space 7 is raised relatively to that of the swash plate chamber 4 so as to make the ice machine oil ooze out on the surface of the swash plate 2 and lubricate between the swash plate 2 and the bearing device 9.