Rotational position detecting device for internal combustion engine

Patent · Tue Nov 04 04:00:00 EST 1986

OSTI ID:7253177

Ushida, M; Nakamura, Y; Abe, K

This patent describes a device for detecting the rotational position of an internal combustion engine of the type that has a cam shaft extending outwardly from the engine through a wall of the engine block and a rotary member fixed to the cam shaft and driven therewith by a crankshaft of the engine. The device comprises: reference position information means and angular position information means both fixed to the end face of the driven rotary member remote from the wall of the engine block. In this way, the reference position and angular position information means are both moved among circular paths when the rotary member is rotated. The reference position and angular position information means are disposed at different radial distances from the axis of the driven rotary member; a reference position sensor and an angular position sensor respectively disposed to face the circular paths of the reference position and angular position information means; a housing fixed to the engine block to cover the driven rotary member and support the sensors; the housing having an end wall formed therein with an opening coaxial with the cam shaft; the cam shaft having an outer end portion extending outwardly beyond the driven rotary member into and through the opening; and a bearing mounted in the opening to rotatably receive the outer end portion of the cam shaft and position the housing with respect to the cam shaft.

• Assignee: Nippondenso Co., Ltd., Kariya
• Patent Number(s): US 4620513
• OSTI ID: 7253177
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BEARINGS
DISPLACEMENT GAGES
ENGINES
HEAT ENGINES
INCIDENCE ANGLE
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MEASURING INSTRUMENTS
MOTION
POSITIONING
ROTATION
SHAFTS