Idler sprocket lubrication assembly and method
US-2015045163-A1 · Feb 12, 2015 · US
Lubricating structure for power transmission mechanism
US11668390B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11668390-B2 |
| Application number | US-202117503033-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 15, 2021 |
| Priority date | Oct 27, 2020 |
| Publication date | Jun 6, 2023 |
| Grant date | Jun 6, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
There is provided a lubricating structure for a power transmission mechanism in which a crankshaft is coupled to a piston disposed in a cylinder bore and in which power is transmitted from the crankshaft to a camshaft. The lubricating structure includes: an idler gear that is configured to transmit power from the crankshaft to the camshaft; and an idler gear shaft that supports the idler gear via a bearing. One end portion of the idler gear shaft protrudes into the cylinder bore, and an oil passage configured to guide oil from the cylinder bore to the bearing is formed in the idler gear shaft.
First claim
Opening claim text (preview).
What is claimed is: 1. A lubricating structure for a power transmission mechanism in which a crankshaft is coupled to a piston disposed in a cylinder bore and in which power is transmitted from the crankshaft to a camshaft, the lubricating structure comprising: an idler gear that is configured to transmit power from the crankshaft to the camshaft; and an idler gear shaft that supports the idler gear via a bearing, wherein one end portion of the idler gear shaft protrudes into the cylinder bore, and an oil passage configured to guide oil from the cylinder bore to the bearing is formed in the idler gear shaft, wherein an upper portion of the one end portion of the idler gear shaft is cut out to form an oil drip tray serving as an inlet of the oil passage, and wherein only the oil drip tray protrudes into the cylinder bore. 2. The lubricating structure according to claim 1 , wherein the oil drip tray extends to an inner side of the cylinder bore with respect to an outer peripheral surface of the piston. 3. The lubricating structure according to of claim 1 , wherein at least a part of the oil drip tray is located on a lower side of a piston head of the piston located at a bottom dead center, and on an upper side of a lower end of a piston boss of the piston.
Assignees
Inventors
Classifications
Lubrication of valve gear or auxiliaries · CPC title
Bearing · CPC title
- F16H57/0475Primary
Engine and gearing, i.e. joint lubrication or cooling or heating thereof · CPC title
on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force · CPC title
Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes · CPC title
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- What does patent US11668390B2 cover?
- There is provided a lubricating structure for a power transmission mechanism in which a crankshaft is coupled to a piston disposed in a cylinder bore and in which power is transmitted from the crankshaft to a camshaft. The lubricating structure includes: an idler gear that is configured to transmit power from the crankshaft to the camshaft; and an idler gear shaft that supports the idler gear v…
- Who is the assignee on this patent?
- Suzuki Motor Corp
- What technology area does this patent fall under?
- Primary CPC classification F16H57/0475. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 06 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).