---

Home    List your patent    My account     Help     Support us    

---

Four-stroke engine with two-stage exhaust cycle

[Category : - MECHANICAL ENGINEERING- Automotive Accessories - Motors]
[Viewed 106 times]

Engine with the potential to significantly increase efficiency of piston engine by reducing back pressure. A portion of the exhaust gas generated during combustion is outlet during the upward stroke of the piston so that a reduced volume of exhaust gas needs to be outlet during the valve opening at the end of the upward stroke. The engine includes a cylinder having a peripheral wall defining a combustion chamber, a crankshaft, and a piston movable in the cylinder. Intake and exhaust valves regulate flow of an air into or combustion products out of the combustion chamber, respectively. An exhaust outlet port has an opening in the peripheral wall at a location between lowermost and uppermost piston positions, and an outlet port valve is associated with the exhaust outlet port. The exhaust stroke has a first exhaust stage in which combustion products exhaust through the exhaust outlet port when an upper surface of the piston is below the opening, and the outlet port valve opens. In a second, subsequent exhaust stage, during continued movement of the piston past the opening in the peripheral wall, the outlet port valve closes and remaining combustion products in the combustion chamber exhaust around the exhaust valve.


Financial information

Looking for buyer of the US and International rights or partner to fund National stage filings.
See US 11441425 and US 11698022 (WO 2023215126) for related IP that is also available to provide a portfolio for development.

---

---

---

---

[ Home | List a patent | Manage your account | F.A.Q.|Terms of use | Contact us]

Copyright PatentAuction.com 2004-2017
Page created at 2024-12-21 15:03:49, Patent Auction Time.