Invention Grant
- Patent Title: Method and system for storing and reusing hydraulic energy
-
Application No.: US14981977Application Date: 2015-12-29
-
Publication No.: US09677572B2Publication Date: 2017-06-13
- Inventor: Michael L. Knussman , Jeremy T. Peterson , Jeffrey L. Kuehn
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Main IPC: F15B21/14
- IPC: F15B21/14 ; F15B1/02 ; F15B1/027

Abstract:
A method for storing and reusing hydraulic energy in a machine is disclosed. The method includes transferring the hydraulic energy from an actuator to an upstream side of a motor pump via a first valve, during a normal mode. The method includes directing excess hydraulic energy from a downstream side of the motor pump to an accumulator by opening an accumulator valve and closing a bypass valve, during an energy saving mode. The method includes retrieving stored hydraulic energy from the accumulator to the upstream side of the motor pump by opening the accumulator valve, during an energy discharging mode.
Public/Granted literature
- US20160108933A1 METHOD AND SYSTEM FOR STORING AND REUSING HYDRAULIC ENERGY Public/Granted day:2016-04-21
Information query