Heat exchanger-filter apparatus for hydrostatic system
US4813477A · kind A · utility
Inventors
Key dates
| Filing date | Jan 30, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Jan 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus including an expandable bellows having a pair of end plates, one plate being provided with a fluid inlet and the other plate being provided with a fluid outlet. A diffuser and filter is located within the bellows across the fluid path between the inlet and outlet. Thus, fluid at an elevated temperature entering the bellows must flow first through the diffuser, then through the filter before leaving the space within the bellows. In this way, the fluid is filtered before passing to and through the outlet. The expansion capability of the bellows provides a heat exchange relation between the fluid and the bellows itself. A pressure relief cap can be coupled to an outlet port communicating with the interior of the bellows. The inlet is adapted to be coupled to the waste line of a fluid pump of a hydrostatic system and the outlet is adapted to be coupled to the supply line of the fluid pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.