Apparatus for evaluating fuel lubricity at elevated pressure conditions
US6070456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for evaluating fuel lubricity under elevated pressure conditions is disclosed. The apparatus includes a housing including a sidewall defining an enclosed interior cavity adapted for receiving and holding a quantity of the fuel at the elevated temperature and pressure condition, and a port through the sidewall communicating with the interior cavity adapted for receiving a drive rod. A drive rod is positioned to extend through the port, the drive rod having a working end including a chuck adapted for supporting a ball for oscillating movement in the interior cavity of the housing, and an opposite drive end located externally of the housing adapted for connection to a power source operable for moving the drive rod to oscillate the chuck and the ball along a predetermined path of movement in the interior cavity. A seal member extends around the drive rod forming a sealed condition between the drive rod and the housing. A load applying member is located in the interior cavity along the predetermined path of movement, and structure is provided operable for biasing the load applying member against the ball during the oscillating movement thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.