| 摘要 |
A fuel efficiency display device, in the form of an intake manifold suction measuring and display intended to be mounted within the passenger compartment of an internal combustion engine propelled vehicle, includes an elongated housing with a hollow open bottomed outer shell with a mounting boss extending lengthwise of it, a central, open ended sleeve with a cylindrical bore, the sleeve being spaced from and connected to an inside wall of the shell by spiders and a sight tube, fitting within the sleeve, through which an indicator spool slides. The sight tube has an annular shoulder which abuts the upper end of the sleeve. The open lower end of the shell and the sight tube are so proportioned and configured as to provide a press fit with a truncated conical part and a cylindrical boss of a conventional diaphragm assembly, operatively connected to the indicator spool so as to move the spool past sight ports in the sight tube in response to variations in the suction in the intake manifold, to which the diaphragm assembly is connected.
|
