JPS6315465U

JPS6315465U -

Info

Publication number: JPS6315465U
Application number: JP10674286U
Authority: JP
Priority date: 1986-07-14
Filing date: 1986-07-14
Publication date: 1988-02-01

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す膨張弁の要部
断面図、第２図は第１図に示す―線に沿う断
面図、第３図は本考案の他の実施例を示す膨張弁
の要部断面図、第４図は一般的な自動車用冷房サ
イクルの概略図、第５図はその冷房サイクルをモ
リエル線図上に示したグラフ、第６図は従来例に
係る膨張弁の断面図である。４……コンデンサ、７……エボポレータ、８…
…冷媒入口、９……冷媒出口、１０……ケーシン
グ、１１……連通路、１２……スロート部、１３
……ボール弁、１４……弁作動棒、１５……ダイ
ヤフラム、３０，３０ａ……膨張弁、３３，３３
ａ……弾性部材。 Fig. 1 is a sectional view of the main part of an expansion valve showing one embodiment of the present invention, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 is an expansion valve showing another embodiment of the invention. 4 is a schematic diagram of a general automotive cooling cycle, FIG. 5 is a graph showing the cooling cycle on a Mollier diagram, and FIG. 6 is a diagram of a conventional expansion valve. FIG. 4...Capacitor, 7...Evoporator, 8...
... Refrigerant inlet, 9 ... Refrigerant outlet, 10 ... Casing, 11 ... Communication passage, 12 ... Throat section, 13
... Ball valve, 14 ... Valve operating rod, 15 ... Diaphragm, 30, 30a ... Expansion valve, 33, 33
a...Elastic member.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

コンデンサ４側と連通する冷媒入口８とエバポ
レータ７側と連通する冷媒出口９とを開設したケ
ーシング１０内にこの冷媒入口と冷媒出口とを連
通する連通路１１を形成し、該連通路の流路途上
に形成したスロート部１２に設けた弁体１３を、
膜動変位するダイヤフラム１５に一端が当接する
弁作動棒１４の他端に連結し、前記ダイヤフラム
１５の膜動変位により当該弁体１３を動かし、前
記スロート部１２の開度を調節する冷房サイクル
用膨張弁において、前記弁作動棒１４の一端が当
接するダイヤフラム１５に、当該弁作動棒１４の
端部周囲に径方向外方から所定の弾性力で以て圧
接する弾性部材３３，３３ａを、装着したことを
特徴とする膨張弁。 A communication passage 11 is formed in the casing 10 in which a refrigerant inlet 8 communicating with the condenser 4 side and a refrigerant outlet 9 communicating with the evaporator 7 side are formed. The valve body 13 provided in the throat part 12 formed midway,
For use in cooling cycles, one end of which is connected to the other end of a valve actuating rod 14 that contacts a diaphragm 15 that undergoes membrane displacement, moves the valve element 13 by the membrane displacement of the diaphragm 15, and adjusts the opening degree of the throat portion 12. In the expansion valve, elastic members 33, 33a are attached to the diaphragm 15 with which one end of the valve operating rod 14 comes into contact, and are pressed against the periphery of the end of the valve operating rod 14 from the outside in the radial direction with a predetermined elastic force. An expansion valve characterized by: