Hydraulic timing chain tensioner assembly
US6609987B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0814
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic timing chain tensioner assembly includes a shoe configured to contact a timing chain, and a plunger having a distal end abutting the shoe. The plunger is movable within a cylindrical opening formed in a tensioner body. The cylindrical opening includes oil and a spring member therein to cushion chain loads transmitted through the shoe and plunger. A spring-controlled oil pressure relief structure is operatively associated with the cylindrical opening to vent the oil when the oil is pressurized above a predetermined level by the plunger, thereby enabling further movement of the plunger into the cylindrical opening to reduce maximum loads experienced by the timing chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.