JPH0312070U

JPH0312070U -

Info

Publication number: JPH0312070U
Application number: JP6991089U
Authority: JP
Priority date: 1989-06-14
Filing date: 1989-06-14
Publication date: 1991-02-07

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例による比例流量制
御バルブの全体構成を示す断面図、第２図は同上
実施例における流量調整手段を電磁吸引力方向に
付勢するスプリングの両端をねじに固定した状態
を示す説明図、第３図は同上実施例における流量
調整手段を電磁吸引力方向に付勢するスプリング
の両端をめねじに固定した状態を示す説明図、第
４図は同上実施例における電磁コイルのオン・オ
フによるデユーテイ比対流量の関係を示す流量特
性図、第５図は従来の比例流量制御バルブにおけ
るプランジヤを電磁吸引力方向に付勢するスプリ
ングの両端の固定状態を示す説明図、第６図は従
来の比例流量制御バルブにおける電磁コイルの電
流のオン・オフによるデユーテイ比に対する流体
の流量の関係を示す特性図である。１……ソレノイド、２……コア、４……プラン
ジヤ、４ａ……段部、４ｂ，９ａ……ねじ溝、５
，８……スプリング、９……スプリングホルダ、
１１……比例流量制御バルブ本体、１１ａ……流
体導入通路、１１ｃ……流体導出通路。なお、図
中、同一符号は同一、又は相当部分を示す。 Fig. 1 is a sectional view showing the overall structure of a proportional flow rate control valve according to an embodiment of this invention, and Fig. 2 is a sectional view showing the overall configuration of a proportional flow rate control valve according to an embodiment of the invention, and Fig. 2 shows both ends of a spring that biases the flow rate adjusting means in the direction of electromagnetic attraction force in the same embodiment as above, which are fixed to screws. FIG. 3 is an explanatory diagram showing a state in which both ends of the spring that biases the flow rate adjusting means in the direction of electromagnetic attraction force in the above embodiment are fixed to female threads. FIG. Flow characteristic diagram showing the relationship between duty ratio and flow rate due to on/off of the electromagnetic coil. Figure 5 is an explanatory diagram showing the fixed state of both ends of the spring that biases the plunger in the direction of electromagnetic attraction force in a conventional proportional flow control valve. , FIG. 6 is a characteristic diagram showing the relationship between the fluid flow rate and the duty ratio by turning on and off the current of the electromagnetic coil in a conventional proportional flow rate control valve. 1...Solenoid, 2...Core, 4...Plunger, 4a...Step, 4b, 9a...Thread groove, 5
, 8... Spring, 9... Spring holder,
11...Proportional flow rate control valve body, 11a...Fluid introduction passage, 11c...Fluid outlet passage. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

補正平２．７．１２図面の簡単な説明を次のように補正する。明細書の１１頁１９行「ねじ」を「おねじ」と
訂正する。Amendment 2.7.12 The brief description of the drawing is amended as follows. On page 11, line 19 of the specification, "screw" is corrected to "male screw."

Claims

[Scope of utility model registration request]

an electromagnetic coil wound around a core; a flow rate adjustment means that is attracted toward the core when the electromagnetic coil is energized and adjusts the flow rate of fluid in the fluid introduction passage of the proportional flow control valve body; a first spring that is interposed between the first spring and the core and biases the flow rate adjusting means in a direction opposite to the suction direction;
The flow rate adjustment means is biased in the suction direction and expands and contracts in accordance with the operation of the flow rate adjustment means, and at least one of the spring holders on the side in contact with the flow rate adjustment means or on the opposite side is provided with a threaded groove. and a second spring threadably coupled to the proportional flow control valve.