CN1200448A - 一种电子自动变速器油泵 - Google Patents

一种电子自动变速器油泵 Download PDF

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Publication number
CN1200448A
CN1200448A CN 97111329 CN97111329A CN1200448A CN 1200448 A CN1200448 A CN 1200448A CN 97111329 CN97111329 CN 97111329 CN 97111329 A CN97111329 A CN 97111329A CN 1200448 A CN1200448 A CN 1200448A
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China
Prior art keywords
transmission fluid
oil pump
speed changing
valve seat
changing oil
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Pending
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CN 97111329
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English (en)
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欧阳抗美
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Individual
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Individual
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Priority to CN 97111329 priority Critical patent/CN1200448A/zh
Publication of CN1200448A publication Critical patent/CN1200448A/zh
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Abstract

本发明为一种汽车电子自动变速控制***的液压动力源油泵,能在常压式、经常处于阻断传动液流动的工况下,将溢流阀溢出的传动液,引出油泵直接进入油箱或换热器,避免传动液在油泵内被反复剪切加压,造成高温。使传动液变质。从而提供稳定可靠的液压动力源。

Description

一种电子自动变速器油泵
本发明为一种汽车电子自动变速控制***的液压动力源油泵。
目前，汽车所用油泵，大多数为常流式油泵，比如典型动力转向泵，如果阻断传动液流动，传动液只有经溢流阀的溢流腔回到油泵的吸油口，在油泵内循环。只需要很短的时间，整个油泵就严重发热，造成无法正常工作。而电子自动变速器的工况，正是常压式，经常处于阻断传动液流动的工况。而本发明能有效的满足电子自动变速、常压式工况的要求。将溢流阀溢出的传动液引出油泵，直接进入油箱或换热器，避免了传动液在油泵被反复剪切加压，造成高温。使传动液变质。从而提供稳定可靠的液压动力源。
本发明由轴承座，泵体和调节油泵压力的阀座组成，阀座内装有溢流阀芯，阀座上吸油口与溢流腔完全隔离。传动液流经箭头所示到溢流腔，溢流腔开有一小孔，通过溢流端接头与油箱或换热器相连。阀座的上端装有高压输出端接头，下端装有堵头。
由于采用上述方案，能在高压输出端关闭或超负荷时，使通过溢流阀芯到溢流腔的传动液流，不回到吸油口循环工作。而是直接回到油箱，从而有效的降底了油泵的温度，提供了稳定可靠的液压动力源。
附图说明：
图1为本发明主视图
如图1所示，本发明由轴承座(8)、泵体(9)和调节油泵压力的阀座(4)组成。阀座(4)内装有溢流阀芯(3)、阀座(4)上吸油口(1)与溢流腔(12)完全隔离，剪头(7)为传动液流方向，溢流腔(6)上开有一小孔(1)与溢流端接头(5)相通。并与油箱连接，阀座(4)的上端装有高压输出端接头(2)，下端装有堵头(10)。

Claims (2)

  1. ①一种电子自动变速器油泵。其特征在于阀座内的吸油口与溢流腔完全隔离，溢流腔开一小孔，通过溢流端接头与油箱或换热器相通。
  2. ②根据权利要求①所述的装置，阀座内装有溢流阀芯。
CN 97111329 1997-05-22 1997-05-22 一种电子自动变速器油泵 Pending CN1200448A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97111329 CN1200448A (zh) 1997-05-22 1997-05-22 一种电子自动变速器油泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97111329 CN1200448A (zh) 1997-05-22 1997-05-22 一种电子自动变速器油泵

Publications (1)

Publication Number Publication Date
CN1200448A true CN1200448A (zh) 1998-12-02

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ID=5171710

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97111329 Pending CN1200448A (zh) 1997-05-22 1997-05-22 一种电子自动变速器油泵

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CN (1) CN1200448A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101196188B (zh) * 2006-12-06 2011-08-31 现代自动车株式会社 自动变速器的液压泵

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101196188B (zh) * 2006-12-06 2011-08-31 现代自动车株式会社 自动变速器的液压泵

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