Automatic tensioner for timing chain

Details Automatic tensioner for timing chain Automatic tensioner for timing chain

2007-06-26

2007-06-26

Johnson, Vicky A. (Department: 3682)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster or shifter driven by electrical or fluid motor

Reexamination Certificate

active

10750672

ABSTRACT:
The tensioner includes a cylinder inside a large capacity reservoir tank without interference with other components. The tensioner maintains oil inside the cylinder at all times, thereby improving the response of the tensioner when the engine is re-started after a long periods of inactivity. This prevents any fluctuation and wear and tear of a timing chain during engine re-start. Furthermore, the reservoir tank is integrally cast with the cylinder block to reduce manufacturing costs and increasing space-utilization of the engine.

REFERENCES:
patent: 5030169 (1991-07-01), Kiso et al.
patent: 5713809 (1998-02-01), Yamamoto et al.
patent: 5913742 (1999-06-01), Nakamura et al.
patent: 5954159 (1999-09-01), Nakamura
patent: 6146300 (2000-11-01), Suzuki et al.
patent: 6875141 (2005-04-01), Konishi et al.
patent: 09-032572 (1997-02-01), None

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