Steam traps
US4300719A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Feb 20, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16T1/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to an improved temperature responsive control arrangement. It includes a valve member, a chamber, and a bellows disposed in said chamber for controlling the position of the valve member in response to the temperature of fluid flowing through the chamber. The arrangement is particularly suited for use in steam traps. There are surfaces in the chamber for distributing fluid flowing through the chamber around the bellows to promote rapid expansion and contraction of said bellows with changes in temperature of the fluid flow through said chamber. The chamber has an outlet centrally located at one end thereof, and the distributing surfaces include a plurality of fluid inlets at the end of the chamber opposite from the outlet, the fluid inlets being distributed about the periphery of the chamber. Each of the fluid inlets conducts a flow of fluid into the chamber and each of the inlets is located so that a first portion of the fluid flowing through the inlet into said chamber is deflected by impact with the bellows across a lower end face of the bellows. The distributing surfaces further include a plurality of channels, each of the channels being associated with one…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.