Hydraulic system with suction/return filter
US9551362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2012 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B21/041
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a hydraulic system, preferably for piloting and actuating a two-cylinder thick matter pump. The hydraulic system comprises a tank (68) for receiving hydraulic oil, a primary circuit having at least one hydraulic consumer (AH, MH) which has at least one primary pump (36, 38, 61, 70), which is loaded with hydraulic oil via a first suction line (42), and is connected on the outlet side to at least one first return line, and which has a suction/return filter (40) which communicates with the first suction line (42) on the outlet side and is loaded on the inlet side with return oil from the at least one return line. A special feature of the invention consists in that the first suction line (42) communicates with the tank (68) via a separate replenishing suction line (86) and a suction filter (66), wherein a replenishing suction valve (88) which is preloaded in the direction of the suction filter (66) is arranged in the replenishing suction line (86).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.