公开(公告)号：US20160195093A1

公开(公告)日：2016-07-07

申请号：US15067191

申请日：2016-03-11

Applicant: Caterpillar Inc.

Inventor： Richard A. Carpenter ,  Peter Dubenco ,  Stephen J. Morey

IPC: F04D15/00 ,  G01F1/68 ,  G01F1/36

CPC classification number: G01F1/68 ,  F04B51/00 ,  G01F1/44 ,  G01F15/04

Abstract: A flow monitoring device is coupled to a case drain of a hydraulic pump. The flow monitoring device includes a manifold to receive a fluid flow from the case drain. The manifold has an inlet, a throat and an outlet. The manifold includes a pressure sensor to measure a differential pressure of fluid between the inlet and the throat. The manifold further includes a temperature sensor to measure a temperature of fluid flowing through the manifold. A bypass passage is fluidly coupled between the inlet and the outlet of the manifold. A bypass valve located in the bypass passage regulates an amount of fluid flowing from the inlet to the outlet of the manifold through the bypass passage.

Abstract translation: 流量监测装置联接到液压泵的壳体排水口。 流量监测装置包括用于从壳体排出口接收流体流的歧管。 歧管有一个入口，一个喉管和一个出口。 歧管包括用于测量入口和喉部之间的流体压差的压力传感器。 歧管还包括用于测量流过歧管的流体的温度的温度传感器。 旁通通道流体地联接在歧管的入口和出口之间。 位于旁路通道中的旁通阀调节从歧管的入口到出口流过旁通通道的流体的量。