776D, 777D and 777D HAA Off-Highway Truck/Tractors Power Train Caterpillar


Gear Pump (Torque Converter Charging, Scavenge, and Parking Brake Release)

Usage:

776D 5ER



图 1g00643773

(1) 变矩器扫油泵段

(2) 变矩器充油泵段

(3) 停车制动器释放泵段

(4) 变矩器扫油滤网盖

该泵有三段:

  • 变矩器扫油泵段 (1)

  • 变矩器充油泵段 (2)

  • 停车制动器释放泵段 (3)

泵由变矩器上的一个齿轮驱动。

变矩器扫油段 (1) 位于驱动端。 该泵带走变矩器壳体底部的油。 这些油流经盖 (4) 后面的一个扫油滤网。 然后这些油流回液压油箱。

泵的另外两段带走液压油箱的油。

变矩器充油段 (2) 将油输送到变矩器充油滤清器、变矩器进口安全阀和变矩器。

停车制动器释放段 (3) 将油输送到停车制动器释放油滤清器。 这些油然后被分开。 一些油由停车和辅助制动器接收。 这些油用于释放弹簧作用停车制动器。 其余的油分别流向锁定离合器和拉动装置控制阀。 这些油用于接合变矩器中的锁定离合器。 输送到拉动装置控制阀的油被用作信号油。

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