ELECTROMAGNETIC DRIVING PUMP

To provide an electromagnetic driving pump capable of easily adjusting a discharge flow rate by using a simple configuration and highly accurately maintaining the discharge flow rate.SOLUTION: An electromagnetic driving pump 100 includes: an electromagnetic coil 102; a fixed iron core 106 disposed o...

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Bibliographic Details
Main Authors YOSHIDA MASAO, TANAKA FUMIYA, ARAI KAZUTAKA
Format Patent
LanguageEnglish
Japanese
Published 15.05.2023
Subjects
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Summary:To provide an electromagnetic driving pump capable of easily adjusting a discharge flow rate by using a simple configuration and highly accurately maintaining the discharge flow rate.SOLUTION: An electromagnetic driving pump 100 includes: an electromagnetic coil 102; a fixed iron core 106 disposed on the inner side of the electromagnetic coil; a plunger 110 moving on the inner side of the electromagnetic coil; and a cylindrical guide 108 guiding the movement of the plunger on the inner side of the electromagnetic coil. An end surface 126 of the plunger and an end surface 128 of the guide are disposed to oppose to an end surface 130 of the fixed iron core. The electromagnetic driving pump further includes: a metal spacer 132 disposed to abut on the end surface of the fixed iron core and adjusting a stroke of the plunger; and an elastic ring 134 sealing a space between the metal spacer and the end surface of the guide and energizing the metal spacer toward the end surface of the fixed iron core.SELECTED DRAWING: Figure 2 【課題】簡素な構造で吐出流量を容易に調整可能であり、吐出流量を高精度に保つことができる電磁駆動ポンプを提供する。【解決手段】本発明にかかる電磁駆動ポンプ100は、電磁コイル102と、電磁コイルの内側に配置された固定鉄心106と、電磁コイルの内側を移動するプランジャ110と、電磁コイルの内側でプランジャの移動を案内する円筒状のガイド108と、を備え、プランジャの端面126およびガイドの端面128は、固定鉄心の端面130と対向して配置されていて、電磁駆動ポンプはさらに、固定鉄心の端面に当接して配置され、プランジャのストロークを調整する金属スペーサ132と、金属スペーサとガイドの端面との間をシールするとともに、金属スペーサを固定鉄心の端面に向かって付勢する弾性リング134と、を備えることを特徴とする。【選択図】図2
Bibliography:Application Number: JP20210176411