Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| H2219 | Method for coating small particles The coating method includes the steps of dissolving coating precursor(s) in a solvent to form a precursor solution: adding with mixing a miscible diluent to the precursor solution to form a coating solution; admixing solid particles to the coating solution to form a... | 07/01/2008 |
| 7363887 | Dynamic mass transfer rapid response power conversion system The present invention features a rapid fire rapid response power conversion system comprising (a) a chamber having at least one fluid port configured to supply combustible fluid to the chamber, and an out-take port; (b) a compressor for supplying compressed combusti... | 04/29/2008 |
| 7281379 | Dual-use radial turbomachine The impeller is preferably modified to use back swept, radial or forward swept blades to accommodate relatively low, medium and high lift, respectively applications for both centrifugal compressor and turbine rotor use. ... | 10/16/2007 |
| 7203593 | Air starter and electronic control therefor An in-head compressed air start-up system for an internal combustion engine comprises an absolute angular position detector for the crankshaft outputting an electrical signal indicative of the angular position, a computer for storing a table of the firing order of t... | 04/10/2007 |
| 7137789 | Vent for reducing seal pressure in pump assembly An engine pump is provided which operates with an internal combustion engine or as a supplemental pump or as used in a stand alone device, and includes an internal vent for improved pump and motor durability. The pump is operably and sealably connected to a motor an... | 11/21/2006 |
| 7134850 | Fitted assembly bellows pump In a pump employing a bellows, individual members are formed from resins and pump components including a fitted assembly formed by fitting plural members with each other form a structure unit which is tightly inserted in an external cover and constrained on the oppo... | 11/14/2006 |
| 7131408 | Method and arrangement for controlling an internal combustion engine The invention is directed to a method and an arrangement for controlling an internal combustion engine (20) which achieve an optimal efficiency in different operating states. An opening time of an inlet valve (5) of a cylinder (1) of the engine ... | 11/07/2006 |
| 7100749 | Operating material supply device The invention relates to an operating material supply device for hydrodynamic components, for example, hydrodynamic switching elements for use in starting units, retarder assemblies or gearing assemblies. The material supply device includes an operating material res... | 09/05/2006 |
| 7052250 | Reciprocating compressor A reciprocating compressor, being small-sized and compact, for compressing hydrogen gas to be used in a fuel-cell car, has a crankshaft, to which an end of a connecting rod is connected. The other end of the connecting rod is connected to a crosshead. To the crosshe... | 05/30/2006 |
| 7011051 | Hybrid two cycle engine, compressor and pump, and method of operation The hybrid comprises a two-cycle engine, boosted by the engine power compressor and a hydraulic pump. The pump plunger fastened to engine piston and located coaxially with the compressor piston and pump rotor, provide direct energy transmission to the compressor and... | 03/14/2006 |
| 6929334 | Caterpillar track tension management A management system is disclosed for controlling the tension of an endless track by regulating the hydraulic pressure in a hydraulic jack acting on a roller serving to tension the track. The tension management system comprises two accumulators of different capacity ... | 08/16/2005 |
| 6726457 | Compressor with supercharged inlet The invention relates to a compressor system for production of compressed air, consisting of a compressor driven by an internal combustion engine, connected by piping to compressed air discharge points and supplied with precompressed air by an exhaust turbocharger o... | 04/27/2004 |
| 6551076 | Fuel/hydraulic engine system An engine type apparatus converts the energy released by the internal combustion of a hydrocarbon fuel directly into high pressure. A power cylinder is physically located opposite one of a gas or liquid work cylinder. The power piston is coupled directly ... | 04/22/2003 |
| 6227174 | Plunger-activated unit injector for internal combustion engines An electronically controlled unit injector for internal combustion engine. The unit injector is mounted on a cylinder and has a plunger that extends into the combustion chamber. Fuel flow through the unit injector is accomplished by the plunger, which mov... | 05/08/2001 |
| 6162028 | Fuel pumping device for two-stroke engines with an additional driving unit The invention relates to a fuel pumping device for two-cycle engines with at least a one-piece housing, on which a pulse air connector (14), which is pneumatically connected with the crankcase of the two-cycle engine, a fuel aspiration connector and a fue... | 12/19/2000 |
| 6158972 | Two stage pulse pump A fluid actuated fuel pump assembly including a body 12 having saucer-like sections 54 defining separate concave inlet 14 and outlet 16 hollows and a cylindrical central section 52 defining a fuel intake passage 48 for admitting fuel and extending in the ... | 12/12/2000 |
| 6065433 | Variable displacement metering pump A fluid metering pump (1) is disclosed which is operated by a source of pressurised fluid, which in the case of a pump for metering fuel, may be the crankcase (37) of a two stroke, crankcase scavenged, internal combustion engine. The metered quantity of f... | 05/23/2000 |
| 6017199 | Diaphragm carburetor for four cycle engines A diaphragm type carburetor is disclosed wherein a cantilever portion is used to augment the resilience of a first diaphragm and return it to an undeformed position during the neutral signal produced by a 4-cycle engine. The cantilever portion cooperates ... | 01/25/2000 |
| 6000628 | Fuel injector having differential piston for pressurizing fuel A fuel injector includes a housing having a differential piston surrounded by a coil, the differential piston carrying and surrounding an armature carrying a needle valve element. The valve seat for the needle valve is carried for movement with the differ... | 12/14/1999 |
| 5894730 | Internal combustion hydraulic motor and method of operation An internal combustion hydraulic engine for use in motor vehicles and the like comprises at least one piston having a first piston head and a second piston head; a first or combustion cylinder at least partially surrounding the first piston head for recei... | 04/20/1999 |
| 5832731 | Expandable piston rotary machine An expandable piston rotary engine includes a core having a substantially circular periphery and central axis, and a rotor/flywheel mounted concentrically for rotation relative to the core. The core defines a plurality of cylinders spaced symmetrically ab... | 11/10/1998 |
| 5785505 | Integral fluid pump and internal combustion engine An integral fluid pump is disposed in the cylinder head of an internal combustion engine is directly driven by an engine piston and provides fluid flow to a fluid system. First and second check valves are connected to the cylinder head and control fluid f... | 07/28/1998 |
| 5775305 | Fuel pump injector for compression ignition engines A fuel pump injector for a reciprocating engine having a piston and combustion chamber. The injector comprises a housing having a driving piston slidably received therein. The driving piston is responsive to the pressure in the combustion chamber. A drivi... | 07/07/1998 |
| 5702238 | Direct drive gas compressor with vented distance piece A reciprocating piston gas compressor driven by an integral internal combustion engine is disclosed. The compressor may be used as an air compressor but has particular application for compressing natural gas from natural gas wells. It has few moving parts... | 12/30/1997 |
| 5685272 | Self injection system A fuel injection system for an engine having a combustion chamber, the injection system having at least one fuel injector with a hydraulically operated actuator for amplifying the pressure of fuel injected from the injector into the combustion chamber, th... | 11/11/1997 |
| 5647734 | Hydraulic combustion accumulator A hydraulic combustion accumulator includes a cylinder divided into a combustion chamber and a hydraulic fluid chamber by a free reciprocating piston. An injection mechanism is provided for separately injecting a combustion fuel and air into the combustio... | 07/15/1997 |
| 5615643 | Fuel pumps for internal combustion engines A pump comprising a pumping chamber (3) for pumping a liquid; at least part of the pumping chamber (3) being formed by a pumping means (6) having a pumping area (A2); an actuation chamber (2) in communication with a source of pressurised fluid, at least p... | 04/01/1997 |
| 5556262 | Free-piston engine having a fluid energy unit A free-piston engine having a fluid energy unit comprises a cylinder and a piston reciprocating within the cylinder. The piston is equipped with a plunger-shaped extension including a first axial face moving within a chamber when the piston is moved. Ther... | 09/17/1996 |
| 5461861 | Process for compressing a gaseous medium A process for compressing a gaseous medium, particularly air, in which sucked in gas of a lower initial pressure, particularly atmospheric pressure, is compressed to a predetermined final pressure by means of a compressor driven by the useful side of a th... | 10/31/1995 |
| 5419686 | Fuel pump for an internal combustion engine The invention is directed to a fuel pump for an internal combustion engine such as a two-stroke engine in a portable handheld work apparatus such as a motor-driven chain saw or the like. A pump chamber is connected via a suction valve to a fuel feed and v... | 05/30/1995 |
| 5403164 | Air compressor for internal combustion two cycle engines A passive compressor is disclosed which includes a free piston or a flexible membrane whose movement is controlled by pressure variations in a main chamber. The pressure in the main chamber changes according to the pressure in the motor crankcase, as the ... | 04/04/1995 |
| 5385449 | Compressor arrangement A compressor arrangement for producing compressed air includes a compressor connected through a line to devices using the compressed gas and a supercharger driven by the exhaust of a heat engine. In order to improve the overall efficiency of the arrangeme... | 01/31/1995 |
| 5314314 | Two-cycle engine compressor Arrangements for engine compressor units are disclosed in which power cylinders operating on the two-stroke cycle are provided with charging air from a blower or other source which also provides charging air to two-cycle compressor cylinders via a separat... | 05/24/1994 |
| 5261797 | Internal combustion engine/fluid pump combination A two cycle internal combustion engine is disclosed incorporating a spherical joint between the piston and the connecting rod. The spherical joint draws lubricating oil into a clearance volume, wherein the oil is sealed therein to hydrostatically transfer... | 11/16/1993 |
| 5259352 | Membrane fuel pump for a membrane carburetor The invention is directed to a membrane fuel pump for a membrane carburetor of an internal combustion engine. The carburetor has a pressure controller and the engine has a crankcase wherein pressure fluctuates during the operation thereof. The membrane fu... | 11/09/1993 |
| 5109810 | Two cycle internal combustion hydrocycle engine A two-cycle internal combustion engine includes two opposed pistons reciprocatable within a cylinder, between which an air-fuel mixture is injected and ignited. One of the pistons, a compression piston, is connected to a rotatable flywheel for storing ene... | 05/05/1992 |
| 5067467 | Intensifier-injector for gaseous fuel for positive displacement engines This invention relates to a novel device for compressing and injecting gaseous fuel from a variable pressure gaseous fuel supply into a fuel receiving apparatus. More particularly, this invention relates to an intensifier-injector which compresses and inj... | 11/26/1991 |
| 4952123 | Auxiliary drive on an internal combustion engine for an air compressor A gear wheel driven air compressor that is constructed as a piston compressor, the drive gear wheel of which, on the air compressor crankshaft, meshes with a gear wheel on the camshaft of the internal combustion engine. With drives of this type, the negat... | 08/28/1990 |
| 4917069 | Fuel pump mounted on an engine with reduced heat transmission therefrom A fuel pump is mounted on an engine to reduce heat transmission therefrom by a construction in which the housing of the fuel pump is formed at its base with an annular flange with a relatively small diameter which rests on the engine around on opening the... | 04/17/1990 |
| 4915598 | Auxiliary drive of an internal combustion engine for an air compressor A gear wheel drive air compressor which is constructed as a piston compressor, the drive gear wheel of which on the air compressor crankshaft meshes with a gear wheel on the camshaft of the internal combustion engine. The inventive construction prevents t... | 04/10/1990 |
