No.1018 2021インダストリー関連技術特集号 電気自動車向け電動オイルポンプのトルク低減技術の開発 |
| カテゴリー | 資料 |
|---|---|
| 筆者 | 自動車事業本部 油圧システム技術部 吉田直史 香川弘毅 |
| 要旨 | For the purpose of reducing the torque of electric oil pumps (EOP), we invented an internal gear pump with a new structure featuring additional grooves on the inner surface of its housing. Through performing tests, we confi rmed this internal gear pump demonstrated notably lower torque than conventional pumps. This is especially suitable for high-flow-rate EOP such as those used in cooling systems for BEV (: Battery Electric Vehicle) motors. This report discusses mechanism analysis, approximate mathematical expression, as well as the method and results of contribution by factor in relation to the pump’s torque loss. Furthermore, this report details the structure of the developed product conceived based on the aforementioned analysis, etc., as well as test results. |
| キーワード | internal gear pump, torque, mechanism analysis, contribution by factor, electric pump |
| 関連リンク | 稲熊義治：内接ギヤポンプの摩擦トルク特性, 豊田工機技報, Vol.45 No.3（2005）23.
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(2024年4月の集計)
(2023年5月から2024年4月の集計)
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