Fuel tank isolation valve with single seal, improved axis alignment and robust leak proof solenoid

US10717354B2 · kind B2 · utility

Assignee

• PADMINI VNA MECHATRONICS LTD. · IN

Inventors

• KABIR BHANDARI · New Delhi, IN
• AMARDIP KUMAR · Bhangrola, IN
• Torsten Gerlich · Bensheim, DE
• Varun Kumar · Santa Clara, US
• Krishan Kant Sharma · Manesar, IN
• SAHIL SINGLA · Manesar, IN

Key dates

• Filing date: Sep 20, 2018
• Grant date: Jul 21, 2020
• Expiry date: Sep 20, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86324
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A fuel tank isolation valve 10, wherein, the shaft 18 is assembled coaxially inside hole 42 of moving plunger 46 of seal sub assembly 16 and then flow limiter 22 is guided over the shaft 18 through guiding hole 34 to maintain sealing seat 36 in parallel with respect to the sealing surface 38 of rubber seal 44 and avoid misalignment of flow limiter 22 with respect to sealing surface 38 during and after the operation; the sealing seat 36 of flow limiter 22 on the sealing surface 38 of the rubber seal 44 fixed into moving plunger 46 of seal sub assembly 16 performs the over pressure relief function; the sealing surface 40 of rubber seal 44 fixed into moving plunger 46 of seal sub-assembly 16 is resting on surface 48 of nozzle body 20 to perform over vacuum relief function; and the rubber seal 44 assist both over pressure relief (OPR) and over vacuum relief (OVR) function.