Patent · US Active

Hydraulic arrangement for a vehicle transmission

US11668389B2 · kind B2 · utility

1Cited by

2References

21Claims

0Family size

Assignee

Deere & Company · US

Inventors

Michael Meid · Waghäusel, DE
Manuel Billich · Dischingen, DE
Thomas Busold · Brauel, DE

Key dates

Filing date	Mar 16, 2021
Grant date	Jun 6, 2023
Priority date	—
Expiry date	Jul 17, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/0037
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic arrangement for a vehicle transmission includes a hydraulic system path leading to a hydraulic system circuit with a system pressure, a hydraulic lubrication path leading to a hydraulic lubrication circuit with a lubrication pressure, and a branching point connected to an output side of the system and lubrication paths. A variable displacement pump or a pump combination includes at least two fixed displacement pumps hydraulically connected to an input side of the branching point, and a variable displacement pump or at least one fixed displacement pump are hydraulically connected to the output side of the branching point and integrated into the hydraulic system path.

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