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| Number | Title | Issue Date |
| 5095869 | Apparatus for control of pressure in internal combustion engines A reciprocating piston internal combustion engine is provided with a fixed volume air chamber located next to the working face of the piston and separated from the combustion chamber solely by a circumferential gap extending between the working face of th... | 03/17/1992 |
| 4791899 | Acoustic detonation suppression in internal combustion engine The piston of an internal combustion engine has an odd number of sockets formed in the top surface thereof. With the piston in its top dead center position, a thin slit is formed between the cylinder head and the top of the piston. The sockets form acoust... | 12/20/1988 |
| 4592318 | Internal combustion piston engine using air chamber in piston driven in resonance with combustion wave frequency An internal combustion engine piston and combustion chamber are configured to produce controlled reaction of the fuel supplied to the working chamber with prolonged supply of air to the reaction zone over the combustion/expansion part of the engine operat... | 06/03/1986 |
| 4592331 | Combustion process for I.C. engine using a resonating air chamber in a reciprocating piston to induce closed organ pipe resonance in the combustion chamber Closed organ pipe resonance is induced in the cylinder of a piston I.C. engine by using a resonating mass of gas in a chamber in the piston adjacent its working face, the chamber and cylinder volume being connected by a restricted orifice. The organ pipe ... | 06/03/1986 |
| 4559911 | Modification of diesel engine precombustion chamber to attenuate detonation and improve combustion The precombustion chamber of a diesel engine is modified to incorporate an acoustical attenuator therein. Since the precombustion chamber is of fixed dimensions (not changed by piston movement), the acoustic nature and modification response are very power... | 12/24/1985 |
| 4510895 | Pistons for internal combustion engines A piston (10) for a diesel engine is formed with a combustion bowl (21) which has a lesser volume until the cylinder pressure reaches that at which fuel ignition takes place. The volume of the combustion bowl is then increased to reduce the maximum pressu... | 04/16/1985 |
| 4465033 | Energy conversion cycle for internal combustion engine and apparatus for carrying out the cycle An energy conversion cycle for an internal combustion engine and an internal combustion engine capable of carrying out the process to produce work, the process characterized by the steps of forming fuel and air charges having fuel to air proportions varyi... | 08/14/1984 |
| 4446737 | Method and device for measuring objects using ultrasound echography A device for the scanning of objects by means of ultrasound echography comprises a first ultrasonic transducer (10) which is connected to a transmitter stage (50) for the repeated transmission of ultrasonic signals and to a receiver stage (100, 200) for r... | 05/08/1984 |
| 4412147 | Ultrasonic holography imaging device having a macromolecular piezoelectric element transducer An ultrasonic image device such as may be used in a holography system or scanning system and having a piezoelectric transducer in which the conversion efficiency and phase are substantially constant over a wide frequency range. A piezoelectric sheet 5 μm... | 10/25/1983 |
| 4393830 | Acoustic detonation suppression in a catalytic environment in internal combustion engine A screw-in device forming an acoustical resonance absorber cavity is connected in acoustical communication with a combustion chamber of an internal combustion engine. The absorber cavity has catalytic material therein. The absorber cavity operates to acou... | 07/19/1983 |
| 4389982 | Internal combustion engine fuel supply system A fuel supply system for an internal combustion engine having inlet porting and a fuel supply passage with valve means therein, the cross-sectional area lying within the outside passage walls being greater in the region of the valve means than in a region... | 06/28/1983 |
| 4167930 | Internal combustion engine with sustained power stroke A four stroke cycle internal combustion engine is presented having a sustained power stroke which results from a delayed mixing of a stratified charge. Use of delayed mixing of an overall stoichiometric air-fuel mixture results in formation of a low amoun... | 09/18/1979 |
