Optimization of the four-stroke engine to save fuel consumption, material costs and weight
A cost-effective and lightweight exhaust valve system using metal or ceramic sleeves and a solenoid-controlled two-part exhaust valve addresses inefficiencies in conventional systems, reducing material costs and weight.
Patent Information
- Application Number
- DE202025002571
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2025-12-31
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Conventional valve control systems in four-stroke engines are inefficient, leading to high material costs, labor, and weight, necessitating a more cost-effective and lightweight alternative.
Employing metal or ceramic sleeves, a two-part exhaust valve, and a coil spring, controlled by a solenoid, which opens and closes based on pressure differentials, eliminating the need for conventional valve control mechanisms.
Significantly reduces material costs, labor, and weight by optimizing the exhaust valve system, while maintaining engine functionality.
Smart Images
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Abstract
Description
[0001] My invention, the exhaust valves, eliminates the need for conventional valve control. This results in significant savings in material costs, labor, and weight. The intake side:
[0002] The inlet valves, commonly used in compressor construction, are employed here. These valves open and close due to overpressure and underpressure. The exhaust valve:
[0003] The new sleeve consists of metal or ceramic, three manufactured sleeves, a two-part exhaust valve, and a coil spring. These assembled parts form the newly invented exhaust valve.
[0004] At the upper end of the sleeve, where the groove of the exhaust valve protrudes, is the solenoid valve that locks or opens the valve. The solenoid valve, like the ignition timing and / or injection timing, is controlled by the engine control unit.
[0005] The solenoid pushes a conically shaped part (pin) into the groove of the exhaust valve until the fourth combustion stroke is complete. The piston is at bottom dead center (BDC) and opens until the exhaust gases are expelled and the piston is at top dead center (TDC).
[0006] The exhaust valve is pushed back onto the valve seat (closed) by the coil spring, the solenoid locks again and the first stroke begins again.
[0007] In a redesigned cylinder head, the valves are inserted from above and can then be easily replaced at any time, making maintenance easier. Reference symbol list Fig. 1 (1) Upper valve guide, (2) Sleeve, (3) Coil spring seat Fig. 2 (1) Sleeve, (2) Lower valve guide Fig. 3 (1) Sleeve, (2) Valve seat Fig. 4 (1) Valve stem, (2) Locking groove, (3) Coil spring seat Fig. 5 (1) Valve stem, (2) Valve plate Fig. 6 (1) Valve and valve guide, (2), sleeve Fig. 1, (3) coil spring, (4) valve Fig. 5, sleeve Fig. 2, (6) Sleeve Fig. 3.
Claims
[1] The newly developed exhaust valve and the modified side of the intake valves replace the conventional design in gasoline engines as well as the conventional valve control. The exhaust valve is a unit consisting of sleeves, valve tappet and coil spring, made of metal or ceramic. The high labor costs for manufacturing, material costs and energy consumption are thereby enormously reduced, not only in the production of the motors but also in operating costs.