Multiple gear pump

多連式ギヤポンプ

Abstract

(57)【要約】 (修正有) 【課題】 多連式ギヤポンプの小型化、組付作業の軽減 を図る。 【解決手段】 駆動側ギヤ1、2がトルク伝達可能な駆 動軸3と、駆動側ギヤ1に噛合する従動側ギヤ4の従動 軸5と、駆動側ギヤ2に噛合する従動側ギヤ6の従動軸 7とケーシング8で構成し、駆動側ギヤ1、2の一方を 駆動軸3に嵌合する構造とする。ケーシング8を駆動軸 3の軸支部10a、従動軸5の軸支部10b、駆動ギヤ 1と従動ギヤ4を収納するポンプ室10cとが形成され たケーシング部10、ポンプ室10cのカバー部11a と駆動軸3の軸支部11b、従動軸5の軸支部11c、 従動軸7の軸支部11d、駆動側ギヤ2と従動側ギヤ6 とを収納するポンプ室11eとが形成されたケーシング 部11、ポンプ室11eのカバー部12aと駆動軸3の 軸支部12b、従動軸7の軸支部12cとが形成された ケーシング部12の三分割構造とした。
PROBLEM TO BE SOLVED: To form a multiple gear pump is small size and lighten assembly work. SOLUTION: A pump is constituted by a drive shaft 3 torque transmittable with drive side gears 1, 2, driven shaft 5 of a driven side gear 4 meshed with the drive side gear 1, driven shaft 7 of a driven side gear 6 meshed with the drive side gear 2 and a casing 8, a structure is such that one of the drive side gear 1, 2 is fitted to the drive shaft 3. The casing 8 is formed into a three- divided structure, such as a casing part 10 formed with a journal part 10a of the drive shaft 3, journal part 10b of the driven shaft 5, and a pump chamber 10c storing the drive gear 1 and the driven gear 4, and a casing part 11 formed with a cover part 11a of the pump chamber 10c, journal part 11b of the drive shaft 3, journal part 11c of the driven shaft 5, journal part 11d of the driven shaft 7 and a pump chamber 11e storing the drive side gear 2 and the driven side gear 6, and a casing part 12 formed with a cover part 12a of the pump chamber 11e, journal part 12b of the drive shaft 3 and a journal part 12c of the driven shaft 7. COPYRIGHT: (C)1997,JPO

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    EP-1589226-A1October 26, 2005Goodrich Control Systems LtdPump assembly
    JP-2009062969-AMarch 26, 2009Toyota Industries Corp, 株式会社豊田自動織機Variable displacement type gear pump