Flow limiting throttle element
US5411055A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flow limiting throttle element for restricting the flow of a fluid guided in a delivery line, including a pressure-tight housing having a first bore hole portion, a second bore hole portion adjoining the first bore hole portion and two coaxially arranged working connections. A substantially cylindrical piston is arranged in the first bore hole portion of the housing so as to be freely axially displaceable therein, the first bore hole portion having a length that is at least 50% of the piston length. Overflow ducts are arranged in an outer surface area of the piston and the second bore hole portion of the housing has a cylindrical recess which communicates with the overflow ducts and transits into a first one of the working connections. The first working connection having an inner diameter smaller than that of the second bore hole portion. Additionally, a connection nipple is sealingly arranged in the first working connection, and has an annular end face which is situated in the housing so as to project into a region of the cylindrical recess and form a sealing fit with a first end face of the piston which faces the nipple end face. A first continuous slot is arranged on the first…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.