Intake arrangement
US7013851B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Feb 16, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake arrangement (1) for a two-stroke engine includes an intake channel (2) in which a throttle flap (3) is pivotally journalled with a throttle shaft (4). Downstream of the throttle flap (3), a partition wall (8) is mounted on the intake channel (2) and this partition wall partitions the intake channel (2) into an air channel (6) and a mixture channel (7). In the idle position (5) of the throttle flap (3), at least one fuel opening (14) opens into the mixture channel (7) downstream of the throttle flap (3). A connecting opening (16) between the air channel (6) and the mixture channel (7) is provided between the partition wall (8) and the throttle shaft (4) in the idle position (5) of the throttle flap (3). A shield (20, 30) is mounted in the mixture channel (7) between the fuel opening (14) and the connecting opening (16) in order to achieve a good swing performance of the two-stroke engine. The shield reduces the passing of fuel into the air channel and therefore the degree of wetting of the air channel with fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.