Method and device for mounting cam angle sensor for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsWataru Sanbyakuda, Kunihiko Ohkubo, Hideyuki Kou, Eiichi Komatsu
Life of this patent
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Abstract
In an internal combustion engine in which a head cover for covering a cam shaft at an upper face of a cylinder head is made of a synthetic resin, a cam angle sensor for the cam shaft is securely attached to the cylinder head such that heat damage to the cam angle sensor is suppressed. The cam angle sensor is inserted in a through-hole perforated through the head cover, and a mounting portion integral with the cam angle sensor is fastened to a member of the cylinder head, with fixing members penetrating through the head cover on a side of the cam angle sensor.
Claims8
A mounting device of a cam angle sensor in an internal combustion engine in which a head cover for covering a cam shaft at an upper face of a cylinder head is made of a synthetic resin,
- wherein the cam angle sensor is inserted in a through-hole perforated in the head cover, the cam angle sensor being arranged to face an outer periphery of a rotor on the cam shaft for detection of cam angles,
- wherein a mounting portion is integrally formed with the cam angle sensor at a position outside of the head cover, the mounting portion of the cam angle sensor being fastened to a bearing cap by a fixing member penetrating through the head cover at a position adjacent to a position of the cam angle sensor, the bearing cap pivotally supporting the cam shaft at a position adjacent to a position of the rotor,
- wherein the fixing member fastens simultaneously, to the bearing cap, both the mounting portion of the cam angle sensor and a portion of the head cover through which the fixing member penetrates.
A mounting device of a cam angle sensor in an internal combustion engine in which a head cover for covering a cam shaft at an upper face of a cylinder head is made of a synthetic resin,
- wherein the cam angle sensor is inserted in a through-hole perforated in the head cover, the cam angle sensor being arranged to face an outer periphery of a rotor on a cam shaft for detection of cam angles,
- wherein a mounting portion is integrally formed with the cam angle sensor at a position outside of the head cover, the mounting portion of the cam angle sensor being fastened to a bearing cap by a fixing member penetrating through the head cover at a position adjacent to a position of the cam angle sensor, the bearing cap pivotally supporting the cam shaft at a position adjacent to a position of the rotor,
- wherein the fixing member includes a bolt fastening the mounting portion to the bearing cap, and a metal collar fitted around the bolt, the collar being arranged to abut both a lower face of the mounting portion and an upper face of the bearing cap,
- wherein the collar is arranged to form a clearance between the lower face of the mounting portion and an upper face of the head cover when the bolt is fastened.
Dependencies are inferred from the claim text.