Two stroke charge piston engine
US12291993B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 4, 2024 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Dec 4, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine includes a cylinder block with a fixed trunnion and a cylinder head pivotably attached to the trunnion. The engine has a charge piston and power piston operating in cylinders attached to the cylinder head. Cylinder head valving controls an airflow from the trunnion interior into a charge piston volume during a charge piston intake stroke and restricts an opposite airflow during a charge piston compression stroke. Chamber valving allows an airflow into a chamber within the charge piston during a compression stroke and captures the air in the chamber during an intake stroke. At Bottom Dead Center (BDC), passages in the charge piston, power piston, and their cylinders form a flow path between the chamber and power piston volume. A throttle body controls air intake into the trunnion, and an ignition device in the cylinder head ignites fuel and air in the power piston cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.