公开(公告)号：US20150010416A1

公开(公告)日：2015-01-08

申请号：US13936270

申请日：2013-07-08

Applicant: Caterpillar Inc.

Inventor： Russell Ross Henderson, JR. ,  Abdul Karim Maoued

IPC: F04C14/08 ,  F04C2/08

CPC classification number: F04C14/08 ,  F04C2/08 ,  F04C2/14 ,  F04C15/0061 ,  Y10T29/49236 ,  Y10T29/49242 ,  Y10T29/49243 ,  Y10T29/49245

Abstract: A controller for varying flow rate of a fluid from a fixed displacement pump is provided. The controller includes a pump speed control gear set, a ratio control pump, and a relief valve. The pump speed control gear set includes a sun gear configured to be driven by a prime mover, a planet carrier including one or more planet gears meshed with the sun gear, and a ring gear meshed with the planet gears. The ring gear is configured to connect to an input shaft of the fixed displacement pump. The ratio control pump includes a stationary body, and a rotor coupled to the planet carrier of the pump speed control gear set. The rotor is configured to co-act with the body to pump fluid. The relief valve is connected to the ratio control pump and configured to restrict fluid egress from the ratio control pump.

Abstract translation: 提供了一种用于改变来自固定排量泵的流体流速的控制器。 控制器包括泵速控制齿轮组，比率控制泵和安全阀。 泵速控制装置包括构造成由原动机驱动的太阳轮，包括与太阳齿轮啮合的一个或多个行星齿轮的行星架，以及与行星齿轮啮合的齿圈。 齿圈构造成连接到固定排量泵的输入轴。 比率控制泵包括固定体和联接到泵速度控制齿轮组的行星架的转子。 转子构造成与身体共同泵送流体。 减压阀连接到比率控制泵，并配置成限制流量从比率控制泵排出。

公开(公告)号：US20140256491A1

公开(公告)日：2014-09-11

申请号：US13785781

申请日：2013-03-05

Applicant: CATERPILLAR INC.

Inventor： Russell Ross Henderson, JR. ,  Abdul Karim Maoued ,  Aaron Benjamin Crabtree

IPC: F16H47/04

CPC classification number: F16H47/04 ,  F16H3/722

Abstract: A controller is provided for varying gear ratios in a transmission system including at least one planetary gear train disposed within a housing. The controller includes a ratio control gear set, a ratio control pump, and a relief valve. The ratio control gear set includes a sun gear, a planet carrier, and a ring gear. The planet carrier is configured to rotatably connect to an output shaft of an engine. The ring gear is configured to mesh with a sun gear of the planetary gear train. The ratio control pump includes a body configured to rigidly connect to the housing, and a rotor rigidly coupled to the sun gear of the ratio control gear set. The rotor is configured to co-act with the body to pump fluid. The relief valve is configured to restrict fluid egress from the ratio control pump.

Abstract translation: 提供了一种控制器，用于在包括设置在壳体内的至少一个行星齿轮系的传动系统中变化齿轮比。 控制器包括比率控制齿轮组，比率控制泵和安全阀。 比率控制齿轮组包括太阳齿轮，行星架和齿圈。 行星架被构造成可旋转地连接到发动机的输出轴。 齿圈构造成与行星齿轮系的太阳轮啮合。 比率控制泵包括构造成刚性地连接到壳体的主体和刚性地联接到比率控制齿轮组的太阳齿轮的转子。 转子构造成与身体共同泵送流体。 减压阀被配置为限制流量从比率控制泵排出。