Valve timing adjustment device
US10801374B2 · kind B2 · utility
0Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34483
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spiral spring (5) has an inner circumferential end (5a) fixed to a rotor (3) and an outer circumferential end (5b) fixed to a plate (8) of a housing (2), and biases the rotor (3) in one direction with respect to the housing (2). A projection (13) protrudes from the plate (8), and stops radially outward expansion of an outermost winding (5c) of the spiral spring (5). A clip (6) has a first portion (6a) coming in contact with the outermost winding (5c) of the spiral spring (5), and is attached to the projection (13) by elastic force of the clip (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.