Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 5687050 | Electronic control circuit for an internal combustion engine An internal combustion engine assembly including a solenoid pump having an armature and a solenoid winding encircling the armature such that the armature moves in response to current flow, including unwanted current variations, through the solenoid windin... | 11/11/1997 |
| 5520154 | Fuel injection device according to the solid-state energy storage principle for internal combustion engines The invention pertains to a fuel injection device operating according to the solidstate energy storage principle, whereby a rotor element carried in a pump housing of an electromagnetically driven reciprocating pump is accelerated almost without resistanc... | 05/28/1996 |
| 5469828 | Fuel injection device according to the solid-state energy storage principle for internal combustion engines The invention pertains to a fuel injection device operating according to the solid state energy storage principle, whereby a piston element mounted in a pump cylinder of an electromagnetic reciprocating pump, displaces quantities of the fuel to be injecte... | 11/28/1995 |
| 5131353 | Crank loop frame for a crank loop drive of an internal combustion engine In a crank loop frame for a crank loop drive of an internal combustion engine for the transformation of a back and forth motion into a rotary motion, each of the slideway frame, webs of the crank loop frame includes portions of a heat capacity sufficient ... | 07/21/1992 |
| 5097811 | Process for operating a two-stroke internal combustion engine When a two-stroke combustion engine (10) runs in the no-load or underload mode with intermittent fuel injection, besides the injection nozzles (12) being activated intermittently, the throttle (18) is opened more than is usual on transition into the no-lo... | 03/24/1992 |
| 4966068 | Split ceramic piston ring arrangement with nested biasing ring A piston-ring arrangement for use in an internal combustion engine including a cylinder with a piston axially displaceable within the cylinder and at least one piston ring guided in the cylinder. The cylinder, piston and piston-ring are made of a ceramic ... | 10/30/1990 |
| 4782801 | Internal combustion motor The invention relates to an internal combustion motor, in particular a lift-piston motor with internal combustion and with cylinders arranged in-line, as well as with at least one rotating control element for the gas charge change processes, which is arra... | 11/08/1988 |
| 4751871 | Multisectional piston with plural ceramic parts and rigidly connected piston rod for use in horizontally opposed piston internal combustion engine A multisectional piston for opposed-piston, slider-crank-drive internal combustion engines. The piston has a ceramic skirt (1), a skirt head (2), and a ceramic piston head (3) with fire land (4). The ceramic piston head is provided with annular groove (6)... | 06/21/1988 |
| 4512290 | Crank guide assembly for internal combustion engines, in particular two-stroke internal combustion engines with facing cylinders In a two-stroke internal combustion engine with facing cylinders, piston rods extend from the cylinders into a central crank guide located within a crankcase. A crankpin is located within the crankcase and a sliding piece forms the bearing points between ... | 04/23/1985 |
| 4491097 | Crank guide assembly for an internal combustion engine with at least two facing cylinders A crank guide assembly for an internal combustion engine with facing cylinders includes a crank guide defining an opening with a pair of opposed long sides and a pair of opposed short sides extending between the long sides. The long sides guide the slidin... | 01/01/1985 |
| 4373474 | Scavenging arrangement for a two-stroke internal combustion piston engine In a two-stroke internal combustion piston engine, a piston is reciprocally movable within an axially elongated cylinder. The piston has a bottom dead center position and in the region of this position, the cylinder has an exhaust opening and a number of ... | 02/15/1983 |
