JPH0256871U

JPH0256871U -

Info

Publication number: JPH0256871U
Application number: JP14959788U
Authority: JP
Priority date: 1988-06-24
Filing date: 1988-11-16
Publication date: 1990-04-24

Description

[Brief explanation of the drawing]

第１図：第一考案一実施例のポンプ吸入路構造
を示し、Ａは全体正面図、ＢはＡのＡＡ断面図、
Ｃは吸入路の特性図、第２図：第二考案一実施例
のポンプ吸入路構造の全体正面図、第３図：第一
考案の他の実施例のポンプ吸入構造を示し、Ａは
その緩衝気室体の正面図、ＢはＡのＢＢ断面図、
第４図：従来構造のダブルダイヤフラムポンプを
示しＡはポンプ本体の正面図、Ｂは吸入吐出路の
特性図、Ｃはその使用例を示す吸入始端の正面図
。主な符号、１：ダブルダイヤフラムポンプ、３
：吸入路、３Ａ：一次吸入路、３Ｂ：二次吸入路
、５：駆動部、６：ダイヤフラム、７Ａ，７Ｂ：
ポンプ室、９：吸入口、１０：緩衝気室体、１１
：気室、１２：吸込口、１３：被吸込口、１４：
吸込始端、１５：緩衝ブロツク、１９：バイパス
復流路、２０：流量調整弁、Ａ：死点ゾーン、Ｂ
：定量ゾーン、Ｃ：吸入量曲線、Ｄ：吐出量曲線
、Ｅ：衝撃波。 Figure 1: Shows the pump suction passage structure of the first embodiment of the invention, A is an overall front view, B is an AA sectional view of A,
C shows a characteristic diagram of the suction passage, Fig. 2: An overall front view of the pump suction passage structure of the second embodiment of the invention, and Fig. 3 shows the pump suction structure of another embodiment of the first invention. A front view of the buffer gas chamber body, B is a BB sectional view of A,
FIG. 4: A double diaphragm pump with a conventional structure, A is a front view of the pump body, B is a characteristic diagram of the suction and discharge passage, and C is a front view of the suction start end showing an example of its use. Main code, 1: double diaphragm pump, 3
: Suction path, 3A: Primary suction path, 3B: Secondary suction path, 5: Drive section, 6: Diaphragm, 7A, 7B:
Pump chamber, 9: Suction port, 10: Buffer gas chamber body, 11
: Air chamber, 12: Suction port, 13: Suction port, 14:
Suction start end, 15: Buffer block, 19: Bypass return flow path, 20: Flow rate adjustment valve, A: Dead center zone, B
: Quantitative zone, C: Inhalation amount curve, D: Discharge amount curve, E: Shock wave.

Claims

[Claims for Utility Model Registration] (1) A buffer air chamber body having an airtight air chamber of a required volume is provided in the middle of the suction path of the pump, and between the suction start end and the air chamber of the buffer gas chamber body. a primary suction path, and a secondary suction path between the air chamber of the buffer air chamber body and the pump, and the primary suction path, the air chamber of the buffer air chamber body, and the secondary suction path are sequentially connected. A suction passage structure for a pump characterized by a structure in which a suction passage is formed by (2) A buffer air chamber body having an airtight air chamber of the required volume is provided in the middle of the suction path of the pump, and a primary suction path is connected between the suction starting end of the suction path and the air chamber. A secondary suction path is formed between the pump and the secondary suction path, and the primary suction path, the air chamber, and the secondary suction path are successively connected to form a suction path, and between the secondary suction path and the discharge path. A pump suction passage structure characterized by a structure in which a bypass return flow passage having a flow rate adjustment valve is provided.