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US 11,236,699 B2Granted
Installation tool, internal combustion engine, and method for installing camshaft
AssigneeHonda Motor Co., Ltd.
InventorsShinji Masaki, Keita Matsuo
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AssigneeHonda Motor Co., Ltd.
InventorsShinji Masaki, Keita Matsuo
Estimating the term…
An installation tool installs a camshaft to a lower supporting portion. A cylinder head of an internal combustion engine includes the lower supporting portion, a cam holder, and a half-thrust washer. The camshaft is sandwiched between the cam holder and the lower supporting portion via a bearing. The half-thrust washer is inserted into respective annular groove disposed in an outer peripheral surface of the bearing and half annular groove disposed in the cam holder. The installation tool includes a bearing holder that holds the bearing, a head abutting portion abutted against a reference surface of the lower supporting portion with the bearing held, and an opposed concave knock portion into which a knock collar disposed in the cam holder is inserted to adjust a position of the half annular groove with respect to the half-thrust washer.
An installation tool for installing a camshaft to a cylinder head base portion of a cylinder head of an internal combustion engine, the cylinder head including the cylinder head base portion, a cam holder, and a semi-circular member, the camshaft being sandwiched between the cam holder and the cylinder head base portion via a bearing that is cylindrical, the semi-circular member being inserted into respective bearing side concave portion disposed in an outer peripheral surface of the bearing and holder side concave portion disposed in the cam holder,
An installation tool for installing a camshaft to a cylinder head base portion of a cylinder head of an internal combustion engine, the cylinder head including the cylinder head base portion, a cam holder, and a semi-circular member, the camshaft being sandwiched between the cam holder and the cylinder head base portion via a bearing, the semi-circular member being inserted into respective bearing side concave portion disposed in an outer peripheral surface of the bearing and holder side concave portion disposed in the cam holder,
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Camshafts: overhead type
Casings, e.g. crankcases: camshaft or pushrod housings
For assembling or disassembling parts: specially adapted for combustion engines
Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise…: for…
About 13 years 2 months of term left · ends 17 Dec 2039 (estimated)
The present application claims priority under 35 U.S.C. § 119 to Japanese Patent Application No. 2018-158651 filed on Aug. 27, 2018. The content of the application is incorporated herein by reference in its entirety.
The present invention relates to an installation tool, an internal combustion engine, and a method for installing a camshaft.
There has been conventionally known an installation tool to install a semi-circular member to a journal tray portion of a cylinder block without misassembly while an oil groove disposed in one surface of the semi-circular member is confirmed considering an oil passage around a crankshaft (for example, see Patent Literature 1).
FIG. 1 is a perspective view illustrating an installation tool.
FIG. 2 is a right side view illustrating an internal combustion engine.
FIG. 3 is a perspective view illustrating a cylinder head.
The following describes one embodiment of the present invention with reference to the drawings. In the description, descriptions on directions such as front and rear, right and left, and upper and lower are identical to directions with respect to an internal combustion engine insofar as descriptions are not particularly given. A reference sign FR shown in each drawing indicates a front side of the internal combustion engine, a reference sign UP indicates an upper side of the internal combustion engine, and a reference sign LH indicates a left side of the internal combustion engine.
FIG. 1 is a perspective view illustrating an installation tool 10.
The installation tool 10 is to install a camshaft when a cylinder head of an internal combustion engine 50 (see FIG. 2) is assembled.