Patent · US Expired

Hydraulic system sump standpipe

US6371158B1 · kind B1 · utility

6Cited by
11References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 3, 2000
Grant dateApr 16, 2002
Priority date
Expiry dateOct 3, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/86348
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A hydraulic system having a standpipe in a sump with ports on the side of the standpipe and one smaller port on the top of the standpipe. The majority of the oil flows into the standpipe through the side ports thereby reducing the downward suction and flow at the top of the standpipe to eliminate the formation of a vortex at the top of the standpipe. As a result, less air is drawn into the oil producing a more consistent oil/air mixture and more consistent sump oil level.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.