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| Number | Title | Issue Date |
| 7270099 | Pressure gauge for combustion chamber of an internal combustion engine A glow plug (20) for an internal combustion engine (110) essentially includes: a body (27) intended to be fixed to the engine, and a core (29) extending in a direction of elongation (... | 09/18/2007 |
| 7185632 | Internal combustion engine and method of operating the same An internal combustion engine (20) has a cylinder (1) wherein a piston (2) is mounted. The piston (2) drives a crankshaft (10) which is rotatably journalled in a crankcase (11). The piston (2) delimits a combustion ch... | 03/06/2007 |
| 7171846 | In-cylinder pressure detection device An in-cylinder pressure detection device which is capable of ensuring stable detection accuracy irrespective of tightening torque applied in mounting the in-cylinder pressure detection device and thermal expansion of component parts of the same. A housing 21 ... | 02/06/2007 |
| 7159448 | Combustion-chamber pressure sensor having a metallic diaphragm containing a piezoresistive, thin metallic layer A pressure sensor for measuring the pressure in a space acted upon by high pressure. The signals detected by the pressure sensor are supplied to evaluation electronics. A sensor diaphragm is accommodated on the end of the pressure sensor pointing towards the space a... | 01/09/2007 |
| 6938491 | Engine cylinder pressure sensor A pressure sensor for an internal combustion engine cylinder. The sensor has a housing with a pair of ends and a bore that extends through the housing. A barrel is mounted in the bore toward one end. The barrel has a cavity. A piezoelectric body is mounted in the ca... | 09/06/2005 |
| 6758199 | Tuned power ignition system An ignition system employing a piezoelectric transformer having a drive side and an output side. The ignition system further includes circuit elements in electronic communication with the output side that tune output impedance in series with a breakdown gap to optim... | 07/06/2004 |
| 6488017 | Piezoelectric ignition device for increasing spark energy An improved spark ignition system. Pressure on a piezoelectric element results in a voltage that, when discharged across a spark gap, causes dielectric breakdown in a fuel air mixture. Additional current to power combustion is supplied by a capacitor circ... | 12/03/2002 |
| 6138654 | Piezoelectric ignition and sensing device A spark plug comprising a piezoelectric element that strains with the increase in pressure in the cylinder of an internal combustion engine, and methods of making and using such a spark plug. The strain on the element generates a voltage across the poles ... | 10/31/2000 |
| 5715801 | Ignition system for internal combustion engine A booster is constructed with a piezoelectric transducer including a combination of a primary side piezoelectric element and a secondary side piezoelectric element wherein input electrodes and an output electrode are provided in the thickness direction an... | 02/10/1998 |
| 5291872 | Ignition apparatus for an internal combustion engine An ignition apparatus for providing energy to a spark plug (601) is described including electromagnetic means (121, 103, 133, 119) having a north pole (137) and an opposing south pole (139). A piezoelectric crystal (129) is located between the north pole ... | 03/08/1994 |
| 4917060 | Ignition device for starting an internal combustion engine An ignition device for starting an internal combustion engine surely, having a starting member arranged on a rotor of a manual starter or a self-starter motor, the starting member being engaged with an actuating member of a piezoelectric element, an outpu... | 04/17/1990 |
| 4732129 | Control apparatus for electroexpansive actuator enabling variation of stroke A color apparatus includes an electroexpansive actuator, a unit for supplying a charge to the electroexpansive actuator, and a unit for controlling an amount of charge discharged from the electroexpansive actuator, and a stroke of the electroexpansive act... | 03/22/1988 |
| 4412151 | Piezoelectric crystal spark plug A piezoelectric crystal spark plug includes a body similar to a conventional spark plug, a central electrode extending from the bottom end of the body, and a ground electrode disposed near but spaced from one end of the central electrode and connected to ... | 10/25/1983 |
| 4275690 | Ignition distributor An ignition distributor is disclosed which comprises an input terminal, output terminals, a rotor adapted to rotate with rotation of an engine and provided at its one end with a magnet, a first electrode facing the rotor and coupled to the input terminal,... | 06/30/1981 |
| 4218888 | Impact device An automatic impact delivering device or tool of the internal combustion type having a self-contained fuel supply, wherein: 1. valving is an integral function of the piston; 2. a pre-compression chamber and a combustion chamber are provided in the same structu... | 08/26/1980 |
| 3948238 | Stressing mechanism for a piezoelectric ignition system Mechanism is provided for activating a piezoelectric crystal used to produce a spark at a plug fitted to the cylinder of an internal combustion engine. The mechanism has a striker for delivering current-generating blows to the crystal and this striker is ... | 04/06/1976 |
