Intake neck connection for a hydraulic pump
US5165865A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1991 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Mar 19, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4031
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A detachable intake neck connection for a pump which prevents aspiration of air into the hydraulic pump if a suction line is missing. The hydraulic pump has a first neck bore that, communicates with a suction chamber, which tightly receives an intake hose nipple of a suction line. The pump has a second neck bore for a pressure line, this second bore communicates with a pressure chamber. A connecting bore 31 that communicates with the pressure chamber of the pump begins at the neck bore for the intake hose nipple and is tightly closed by the intake hose nipple introduced into the neck bore. If the intake hose nipple is missing, the pressure chamber of the pump is short-circuited to the suction chamber through the connecting bore. A buildup of pressure in the pump and hence pumping of air is therefore precluded, the hydraulic pump is usable for instance for hydraulic vehicle brake systems, in which for safety reasons, the aspiration of air into the brake system must be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.