Invention Grant
- Patent Title: Prime mover rotational speed control system
- Patent Title (中): 原动机转速控制系统
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Application No.: US847034Application Date: 1992-04-16
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Publication No.: US5265569APublication Date: 1993-11-30
- Inventor: Masaki Egashira , Masakazu Haga , Osamu Tomikawa , Touichi Hirata
- Applicant: Masaki Egashira , Masakazu Haga , Osamu Tomikawa , Touichi Hirata
- Applicant Address: JPX Tokyo
- Assignee: Hitachi Construction Machinery Co., Ltd.
- Current Assignee: Hitachi Construction Machinery Co., Ltd.
- Current Assignee Address: JPX Tokyo
- Priority: JPX2-259966 19900928
- Main IPC: F02D1/08
- IPC: F02D1/08 ; F02D29/04 ; F02D31/00 ; F02D41/38
Abstract:
A rotational speed control system for controlling the number of revolutions of an engine through remote control of rotation of a governor lever. This rotational speed control system includes a stepping motor for rotating the governor lever, lever position sensor switches for detecting abutment of the governor lever against stoppers, respectively, a pulse counter, and a controller. The controller is adapted to store a count value of the pulse counter as a renewable reference value when the position sensor switches are turned on, to carry out the rotational speed control of the engine and necessary preadjustments according the reference value.
Public/Granted literature
- US6049842A Efficient data transfer mechanism for input/output devices Public/Granted day:2000-04-11
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