Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7574986 | Variable compression ratio device of internal combustion engine A variable compression ratio device includes a piston having a piston inner part and a piston outer part. The piston outer part integrally includes ear parts facing opposite ends of a piston pin and having long holes with longer diameters directed in an axial direct... | 08/18/2009 |
| 7318397 | High efficiency high power internal combustion engine operating in a high compression conversion exchange cycle A piston (10), a spring (15) operatively coupled to a piston, the spring being inside (21) or outside (41) the piston, and if the spring is inside the piston, the diameter of the spring is equal to 0.7 to 0.9, and if it is outside of the ... | 01/15/2008 |
| 7310988 | Drive device for a mechanical press The invention provides a drive device for a mechanical press with a two-step speed reduction mechanism for driving a slide of the mechanical press and includes a drive pinion provided concentrically with a crankshaft, a main gear mounted on said crankshaft, intermed... | 12/25/2007 |
| 7270092 | Variable displacement/compression engine An internal combustion engine with improved efficiency provides continuous variable displacement and/or compression ratio tuning to one of a number of fuel types to be used by the engine. By varying displacement without changing the compression ratio, the engine can... | 09/18/2007 |
| 7162935 | Crankshaft coupling structure for engine A crankshaft coupling structure used in an engine and coupled between a piston and a crankshaft to enhance the output torque of the engine is disclosed to include connector pivoted to the crankshaft, the connector having a radially extended and smoothly arched slidi... | 01/16/2007 |
| 7121236 | Split-cycle engine with dwell piston motion A method for decelerating an expansion piston of an engine is presented. The engine includes an expansion piston slidably received within an expansion cylinder and operatively connected to a crankshaft such that the expansion piston reciprocates through an expansion... | 10/17/2006 |
| 7013849 | Variable cylinder capacity engine A mechanical transmission device for a variable cylinder capacity engine includes at least a cylinder (10) wherein moves a piston (2), which is integral in its lower portion with a transmission member (3) co-operating through a small-sized rack ... | 03/21/2006 |
| 6976467 | Reciprocating internal combustion engine The reciprocating internal-combustion engine comprises at least one hollow cylinder, with a chamber inside a working fluid, the chamber has an end closed by a head and an opposite end closed by a piston that reciprocates by rectilinear motion in the chamber between ... | 12/20/2005 |
| 6752105 | Piston-in-piston variable compression ratio engine An improved apparatus for generating a variable compression ratio within an ICE includes a piston-in-piston assembly having an inner piston that is slidably mounted within an outer piston and coupled to an actuator. The actuator is further coupled to a fluid source,... | 06/22/2004 |
| 6732682 | Control system and method for an internal combustion engine A control system for an internal combustion engine is provided. The engine includes a compression ratio control mechanism and an ignition timing control system. The control system comprises an engine control for controlling the compression ratio control mechanism an... | 05/11/2004 |
| 6622669 | Hydraulic circuit having accumulator for unlocking variable compression ratio connecting rod locking mechanisms-II A variable length connecting rod (12) has a first locking mechanism (36) for releasably locking connecting rod parts in a first effective length setting (FIG. 7) for the rod, and a second locking mechanism (38) for releasably locking the connecting rod pa... | 09/23/2003 |
| 6397796 | Oiling systems and methods for changing lengths of variable compression ratio connecting rods An engine 20 has an oiling system including a pump (46) that delivers oil under nominal engine lubrication pressure to lubricate moving surfaces of the engine mechanism (42). The system also has first and second control passages (30, 32) to effect engine ... | 06/04/2002 |
| 6394048 | Variable compression ratio internal combustion engine using field-sensitive fluid An internal combustion engine includes a variable compression ratio apparatus, a field-sensitive fluid coupled to the variable compression ratio apparatus, and a circuit for applying a field to the field-sensitive fluid to configure the variable compressi... | 05/28/2002 |
| 6390035 | Reciprocating internal combustion engine A variable compression-ratio, multiple-link type reciprocating internal combustion engine has at least three links, namely an upper link, a lower link and a third link, for each engine cylinder. The upper link is connected to a piston pin, the lower link ... | 05/21/2002 |
| 6354252 | Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation A device for varying an effective volumetric displacement and/or an effective volumetric ratio of an engine which comprises a piston and a cylinder, the device comprising a first device for controlling the effective volumetric ratio of the engine by modif... | 03/12/2002 |
| 6209516 | Control system and control method for diesel engine A control system for a compression ignition type diesel engine includes an operating state detecting unit for detecting the operating state of the diesel engine. A combustion mode selecting unit selects, in correspondence with the output of the operating ... | 04/03/2001 |
| 5904044 | Fluid expander The fluid expander includes a housing, a drive shaft mounted for rotation within the housing, a piston-cylinder assembly including a cylinder and a piston disposed within the cylinder for converting energy from a working fluid to rotational energy output ... | 05/18/1999 |
| 5865092 | Engine connecting rod and double piston assembly A piston for internal combustion engines with an inner piston eccentrically disposed inside the outer piston. The outer piston is attached to a journal at the top of the connecting rod by a wrist pin in the usual manner. The inner piston is attached by a ... | 02/02/1999 |
| 5724863 | Connecting rod In a connecting rod of a piston machine which comprises two separate parts which are longitudinally movable relative to one another but operatively interconnected and of which one part is connected to the piston and the other is rotatably mounted on the c... | 03/10/1998 |
| 5595146 | Combustion engine having a variable compression ratio A combustion engine. The engine includes an engine housing; at least one cylinder disposed in the engine housing; and a crank drive including: a crankshaft having a crank; and a piston being axially displaceable within the cylinder. The crank drive furthe... | 01/21/1997 |
| 5562068 | Compression ratio changing device in internal combustion engine A compression ratio changing arrangement in an internal combustion engine. In order to change the compression ratio by utilizing, to the maximum, an eccentric amount between inner and outer peripheral surfaces of an eccentric ring interposed between a cra... | 10/08/1996 |
| 5158047 | Delayed drop power stroke internal combustion engine This invention is designed to increase the net engine efficiency of four body linkage mechanisms used to generate power or do useful work. This is accomplished by decreasing the piston velocity in the first half of the power stroke of a typical engine cyc... | 10/27/1992 |
| 5146879 | Variable compression ratio apparatus for internal combustion engine A variable compression ratio apparatus is provided for use in an internal combustion engine. The apparatus has an eccentric sleeve rotatably arranged in one of pivot portions at opposite ends of a connecting rod so as to make a bearing hole of the connect... | 09/15/1992 |
| 5060603 | Internal combustion engine crankdisc and method of making same A mechanism and method for increasing an internal combustion engine's output efficiency by improving the conversion of energy from a reciprocating piston motion to rotary output shaft motion by more closely matching the potential source work available fro... | 10/29/1991 |
| 4864976 | Internal combustion engine and piston structure therefore A reciprocating internal combustion engine includes a dual-headed piston body formed by two piston heads mounted at opposite ends of a central yoke structure. The piston heads are adapted to reciprocate within respective opposed cylinders of a coaxially a... | 09/12/1989 |
| 4864975 | Compression ratio-changing device for internal combustion engines A compression ratio-changing device for an internal combustion engine includes a rotary eccentric member rotatably interposed between a piston and a connecting rod, a locking pin for locking the rotary eccentric member to the connecting rod, and a device ... | 09/12/1989 |
| 4864977 | Compression ratio-changing device for internal combustion engines A compression ratio-changing device for an internal combustion engine, includes an oil passageway formed through a connecting rod of the engine and connected to a hydraulic oil source. A combustion chamber volume-changing device is provided in the piston ... | 09/12/1989 |
| 4721073 | Compression ratio changing device using an eccentric bearing for an internal combustion engine A compression ratio changing device for an internal combustion engine using an eccentric bearing interposed between a piston-pin and a connecting rod. A lock hole is formed in the eccentric bearing and a lock-pin hole is formed in the connecting rod. A lo... | 01/26/1988 |
| 4687348 | Device for locking/unlocking rotation of an eccentric bearing used in a compression ratio changing mechanism of an internal combustion engine A device for locking/unlocking rotation of an eccentric bearing interposed between a piston-pin and a connecting rod of an internal combustion engine for changing the compression ratio of the engine. The eccentric bearing has two lock holes, two guide gro... | 08/18/1987 |
| 4602596 | Reciprocating piston-internal combustion engine with variable compression ratio For changing the compression ratio of a reciprocating piston internal combustion engine the piston 3 consists of an outer piston part 7 and an inner piston part 10 which are connected with each other by a thread 13,14. By turning the outer piston part 7 b... | 07/29/1986 |
| 4485768 | Scotch yoke engine with variable stroke and compression ratio A yoke type engine wherein the orbital path of the slider is alterable to effect piston stroke and compression ratio changes. A crank component has a crankpin which carries and positions the slider. A boss of the crank component is carried by a control sh... | 12/04/1984 |
| 4140091 | Uniform compression piston engine This device pertains to an automatically adjustable length connecting rod, as applied to each cylinder of an internal combustion engine designed to operate at variable speed and torque outputs. The purpose of the adjustable length connecting rod is to substant... | 02/20/1979 |
| 4066049 | Internal combustion engine having a variable engine displacement The present invention refers to a four-cycle, internal combustion engine se pistons have variable strokes, the adjustment of the piston displacement and of the fuel consumption being automatically and continuously realized as a function of the drive shaf... | 01/03/1978 |
| 4044629 | Reciprocating piston machine A reciprocating piston engine, pump or compressor including a crank-shaft having a crank-pin offset laterally from the axis of rotation of the crank-shaft, a connecting-rod pivotally-mounted on the crank-pin and pivotally-connected at the end thereof remo... | 08/30/1977 |
| 3964452 | High compression internal combustion engine using a lean charge A spring-loaded piston is slidably arranged in an auxiliary chamber opening into the combustion chamber of an internal combustion engine. The spring-loading of the piston is preset so that the piston retracts at a certain high pressure attained during the... | 06/22/1976 |
