Governor having ability of removing dust from working fluid in automatic transmission
AssigneeNissan Motor Co., Ltd.
InventorsKazuyoshi Iwanaga, Kazuhiko Sugano, Kunio Ohtsuka, Takahiro Yamamori
Life of this patent
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Abstract
A governor is disclosed in which dust which may comprise steel powder, fine particles of sand and so on will be removed from a hydraulic working fluid by subjecting the working fluid to centrifugal force. A fluid passage for the working fluid is formed in a housing of the governor and a chamber communicates with the passage at the opening. The fluid passage has an opening located such that dust contained in working fluid will enter into the chamber through the opening while the housing is rotating. Within the chamber working fluid will be stagnant and dust sedimented.
Claims6
A governor comprising:
- a housing rotatable about an axis;
- a fluid pressure passage formed in said housing;
- said fluid pressure passage having an opening;
- a chamber formed in said housing and communicating with said fluid pressure passage at said opening;
- said opening being located such that dust contained in working fluid through said fluid pressure passage will enter into said chamber through said opening while said housing is rotating;
- and
- said chamber being shaped and sized such that working fluid will be stagnant therein.
The method of removing dust contained in a working fluid circulating through a hydraulic control system of an automotive automatic transmission, comprising the step of using a governor by forming within a rotatable housing thereof a chamber which communicates with a fluid pressure passage for the working fluid so as to collect dust contained in the working fluid.
Dependencies are inferred from the claim text.