Hydraulic reservoir for hydraulic regenerative circuit

US8241010B2 · kind B2 · utility

Assignee

• Caterpillar Global Mining LLC · US

Inventors

• Uwe Esch · Dortmund, DE
• Robert Weber · Uttenreuth, DE

Key dates

• Filing date: Dec 3, 2009
• Grant date: Aug 14, 2012
• Expiry date: Dec 18, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B23/02
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A hydraulic reservoir includes a container having an internal volume, an internal wall dividing the internal volume of the container into a first section and a second section for separately containing the hydraulic fluid, and two one-way valves. The first one-way valve allows the hydraulic fluid to be drawn out of the first section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid back into the first section. The second one-way valve allows the hydraulic fluid to be returned to the second section of the hydraulic reservoir and substantially prevents a flow of the hydraulic fluid out of the second section. A cooling/filtering loop may connect the second section and the first section such that the used fluid in the second section may be processed and returned to the first section in a substantially unused condition.