Manifold structure for a four-cycle internal combustion engine
US3948229A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Sep 4, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A four-cycle internal combustion engine with external ignition, which is equipped with an intake or suction manifold and with a separate forced air supply to the exhaust channels; to that end an air supply channel is cast-in adjacent one of the exhaust channels provided in a cast cylinder head, whereby the air supply channel is in communication with a slot extending along one suction pipe side in the longitudinal direction of the engine block; the slot is covered off on its open side by a flange of the intake or suction manifold and is operatively connected with the individual exhaust channels by way of cross bores provided in the cylinder head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.