Transducer for use in detecting the pressure of high pressure fuel in the injection supply pipe of a compression ignition engine
US4646563A · kind A · utility
Inventor
Key dates
| Filing date | Apr 6, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Apr 6, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transducer for measuring circumferential expansion of a pipe comprises a pair of pivotally mounted clamping jaws, and a detector for the expansion of the pipe on each jaw. The detectors are resilient and are arranged in opposition across the pipe in a clamped position of the jaws. The detectors are in the form of resilient support strips having a central sensing or detecting portion for embracing a circumferential portion of the pipe, and limb portions to either side of the central sensing portion which define between them two extreme points of contact of the central portion with a pipe in the clamped position of the jaws. The limb portions extend along inclined surfaces of the body of the clamping jaws with respect to a plane containing the two points of contact such that the opposing limb portions of the support strips are disposed along diverging directions with respect to one another in the clamped position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.