Vapor separating and metering pump
US4854824A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Feb 1, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A two-staged vapor separating and metering fuel pump for an aircraft includes a housing (12) divided into a liquid ring section, a metering section and a motor section. Vapor-laden fuel enters the liquid ring section through a fuel inlet opening (14) and enters a liquid ring chamber (36) wherein vapor is separated from the fuel by the rotary action of a liquid ring impeller (44). The separated vapor is discharged from the housing through a vapor outlet opening (18). Vapor-free liquid from the liquid ring section is delivered to a metering chamber (86). The action of a metering rotor (72) in the metering chamber causes fuel to be discharged from the metering section at a flow rate proportional to the rotational speed of the metering rotor. The metering section discharges fuel from a pair or outlet ports (94) into a cavity (114) in the motor section. The motor section includes an armature (104) which is connected to a shaft (46) on which the metering and liquid ring impellers are mounted. Fuel discharged from the metering portion passes through the cavity cooling the components located in the motor section, and is discharged from the housing through a housing outlet opening (16). A s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.