About 35 results
https://drivepatents.com/patents/1399072 · 23 Jul 2025
To provide a chain guide assembly frame capable of efficiently collecting the oil that adhered to various parts of the chain guide assembly, and guiding the collected oil to predetermined locations, to allow efficient use of oil, with a simple structure. T...
https://drivepatents.com/patents/1397896 · 2 Jul 2025
There is provided a variable valve timing system for an engine in which a cam chain chamber is formed in a cylinder and a cylinder head, the variable valve timing system including: a variable valve device configured to change an opening and closing timing ...
https://drivepatents.com/patents/1399636 · 29 Jan 2025
[Object]To provide an internal combustion engine capable of protecting a portion of a hydraulic control valve exposed to the outside from foreign matter such as flying stones flying from below.[Solution]An exhaust side cylinder portion (24) is adjacently f...
https://drivepatents.com/patents/1399154 · 18 Sep 2024
To provide a simple-structured chain guide assembly frame capable of reliably maintaining a correct positional relationship between a driven sprocket and a sprocket holding portion without the possibility of driven sprocket detachment even when the tension...
https://drivepatents.com/patents/945292 · 30 Mar 2016
A breather chamber 7 of an internal combustion engine 4 includes looped cam chains 65L and 65R for transmitting power from a horizontally disposed crankshaft 31 to camshafts 61 L and 61 R provided in cylinder heads 43L and 43R, and includes cam chain chamb...
https://drivepatents.com/patents/949365 · 19 Aug 2015
A valve train system drive device of an engine has an idle gear 62 that transmits power from a crankshaft to valve train systems, an idle shaft 63 that rotatably supports the idle gear 62, and a clutch cover 39 that covers a crankcase 11 from a lateral sid...
https://drivepatents.com/patents/950967 · 13 May 2015
An engine, including a crankcase, a cylinder body extending upward from the crankcase, a cylinder head coupled to an upper portion of the cylinder body, a cylinder head cover coupled to an upper portion of the cylinder head, and a gasket disposed between t...
https://drivepatents.com/patents/978480 · 12 Feb 2014
An engine (1, Fig. 1) comprises a closed looped flexible coupling (3, Fig. 1), which may be a timing (that is, camshaft drive) chain. A guide body 105 controls oscillation of the coupling in use. Guide 105 is assembled into an engine cover 107, then fitted...
https://drivepatents.com/patents/985019 · 24 Apr 2013
An arrangement is provided using a blade tensioner that serves as both a tensioner and a cam chain guide to tension the cam chain, where the cam chain can be easily attached to an engine having a cylinder body that does not have a side that can be opened. ...
https://drivepatents.com/patents/992458 · 20 Mar 2013
A device for controlling an internal combustion engine based on a temperature of a certain portion in the cylinder, comprising a variable valve mechanism for varying opening areas of at least either the intake valves or the exhaust valves, wherein a tempra...