| Patent Number |
Title Of Patent |
Date Issued |
| RE34441 |
Pressure sensor |
November 16, 1993 |
| In order to prevent tilting and torsional stresses from entering the actual sensor element of a pressure sensor comprising a supporting part and an integrated sensor part, the proposal is put forward that the corresponding surfaces of a shoulder of the supporting part and of a fastening |
| 5726351 |
Spark plug comprising a force measuring element |
March 10, 1998 |
| A spark plug with an insulating body held in a casing and containing an inner electrode is provided with a force-measuring element for measuring the pressure acting on the spark plug, the insulating body resting against the casing via the force-measuring element when pressure is applied |
| 5707169 |
Device for detachably lines, especially flexible tubes, pipes and cables |
January 13, 1998 |
| A device for detachably fastening lines and conduits, in particular, flexible tubes, pipes and cables, to a support, which includes a mounting element surrounding and holding the lines, the mounting element including at least one stackable holding module whose plane front face is app |
| 5706778 |
Fuel injection system comprising an injection valve for a self-igniting internal combustion engi |
January 13, 1998 |
| A fuel injection system which includes an injection valve for a self-igniting internal combustion engine with direct fuel injection, in particular for liquefied gas fuels, and which is configured as a pintle-type nozzle opening against the force of at least one spring, has the openin |
| 5690078 |
Injection system for an internal combustion engine |
November 25, 1997 |
| In order to increase the safety of an injection system in an internal combustion engine operating on self-igniting liquefied gas as a fuel, especially after the engine has been switched off, the proposal is put forward that at least one pressurized part of the injection system be dep |
| 5690077 |
Injection system for an internal combustion engine |
November 25, 1997 |
| To provide an injection system for an internal combustion engine operating on self-igniting liquefied gas as a fuel, and to minimize cavitation and related problems of fuel delivery as well as wear, the fuel tank is configured as a low-pressure storage tank which is connected to a pressu |
| 5678524 |
Injection system for an internal combustion engine |
October 21, 1997 |
| An injection system for an internal combustion engine, in particular an engine operating on liquid gas as fuel or fuel component, includes an injection unit for each cylinder for direct fuel injection into the combustion chamber, and a fuel supply system with at least one fuel tank a |
| 5662087 |
Injection device for an internal combustion engine with direct injection |
September 2, 1997 |
| Fuel injection system for an internal combustion engine with direct fuel injection, with an electromagnetic control valve for pressurization of a medium-pressure space, and a hydraulic amplification plunger comprising a medium-pressure plunger adjacent to the medium-pressure space and a |
| 5656768 |
Method for determining the moment of inertia |
August 12, 1997 |
| For largely automatic determination of the moment of inertia of, in particular, an internal combustion engine on a testing stand, speed n and indicated torque M.sub.M are measured under controlled operating conditions in both a run-up phase as well as in a coasting phase. In order to |
| 5647336 |
Device for introducing fuel into a combustion chamber of an internal combustion engine |
July 15, 1997 |
| A device for introducing fuel into the combustion chamber of an internal combustion engine, includes a unit for fuel delivery and an injection valve for withdrawing compressed gas from the cylinder and injecting the gas together with the delivered fuel into the cylinder, and a mixing spa |
| 5642706 |
Internal combustion engine with spark ignition |
July 1, 1997 |
| A combustion chamber formed by a recess in the piston of an internal combustion engine is divided by restrictions into two or more partial chambers. The ratio between the minimum distance in the area of the restrictions and the maximum distance in concave areas of the wall of the com |
| 5622150 |
Method for introducing fuel into a combustion chamber of an internal combustion engine |
April 22, 1997 |
| In a method for introducing fuel into the combustion chamber of an internal combustion engine wherein compressed gas is drawn from the combustion chamber during the compression phase of a working cycle, mixed with fuel, and injected into the combustion chamber together with the fuel duri |
| 5590635 |
Device for introducing fuel into the combustion chamber of an internal combustion engine |
January 7, 1997 |
| A device for introducing fuel into the combustion chamber of an internal combustion engine, includes an injection valve for withdrawing compressed gas from the cylinder and injecting the gas together with the fuel into the cylinder, a mixing chamber in the front part of the valve for the |
| 5589638 |
Pressure sensor having a heat conducting element between the pressure transmitting element and t |
December 31, 1996 |
| In a pressure sensor with a housing containing a measuring device which is separated from the housing by a radial gap and comprises a pressure transmitting element, a measuring element, and, if required, a tubular spring for axially preloading the measuring element, and with a sealing |
| 5575359 |
Braking device for measuring the torque of an engine |
November 19, 1996 |
| An electric braking device for measuring the torque of an engine includes a rotor rotating with a shaft and a stator which is tiltably supported in a housing by a bearing at either of its front ends, each end being provided with a disk-shaped bearing shield with a pivot journal. To preve |
| 5557968 |
Piezoelectric measuring element for measuring mechanical variables |
September 24, 1996 |
| To improve temperature compensation of a piezoelectric element measuring mechanical variables, such as pressure, force, and acceleration, with two or more piezoelectric crystal elements, at least one of the crystal elements differ from the other crystal element(s) either physically or |
| 5492189 |
Hybrid drive system |
February 20, 1996 |
| A propulsion system includes an internal combustion engine predominantly operating in a steady-state mode and a driving engine operating in a transient mode, which act on the output shaft of a planetary gear train by first and second drive shafts. To obtain independent speed and torque |
| 5471883 |
Cooled pressure sensor |
December 5, 1995 |
| A cooled pressure sensor includes a first housing part with inlet and out pipes for a cooling medium and a second housing part sealed gas-tight by means of a membrane and containing a signal generating element for force or displacement sensing. Several cooling channels are located in th |
| 5440188 |
Piezoelectric crystal element |
August 8, 1995 |
| A piezoelectric crystal element for surface acoustic wave applications with a quartz substrate with at least one substantially planar quartz surface, the planar quartz surface having an epitaxially grown layer of a quartz-isomorphous crystal with the total molecular formula ABO.sub.4, A |
| 5375556 |
Hydrothermal process for growing large crystals or crystal layers |
December 27, 1994 |
| In order to obtain large, high-quality crystals or crystal layers of a me orthophosphate, in particular, GaPO.sub.4 or AlPO.sub.4, from a nutrient solution with the use of a seed plate, the proposal is put forward that in the initial phase of the growth process a seed plate of alpha |
| 5369327 |
Piezoelectric crystal element |
November 29, 1994 |
| For surface acoustic wave devices temperature-compensated piezoelectric crystal elements with one or more planar faces are used. An improvement in temperature stability may be expected if the crystal element is made from GaPO.sub.4 and the planar face is defined by Euler angles .lambda. |
| 5289806 |
Combustion engine with at least one camshaft which can be shifted axially |
March 1, 1994 |
| To permit axial shifting of a camshaft dependent on its angle of rotation, a shifting device is used which includes a shifting profile made up of two guide grooves which are configured as oppositely oriented helixes and end in ring-shaped idling grooves, and further includes an engaging |
| 5279266 |
Two-stroke internal combustion engine |
January 18, 1994 |
| In a two-stroke internal combustion engine with at least one cylinder opeg into an exhaust passage with a diffuser-type flare whose shape is determined mainly by that of the lower contour, an optimum flow pattern in the exhaust passage is obtained by providing the exhaust passage with a |
| 5150672 |
Cylinder head of an internal combustion engine |
September 29, 1992 |
| Cylinder head of an internal combustion engine with more than two valves in overhead arrangement for each cylinder, which are actuated via rocker arms, each rocker arm being individually supported on the cylinder head by means of a bridge. A compact design is achieved by providing a valv |
| 5138989 |
Internal combustion engine with two or more inlet valves per engine cylinder |
August 18, 1992 |
| In an internal combustion engine with two or more inlet valves for each engine cylinder and roof-shaped boundary surfaces of the combustion chamber in the cylinder head--the main flow directions of the partial streams admitted into the combustion chamber by the inlet valves each form |
| 5131229 |
Internal-combustion engine with exhaust gas turbocharger |
July 21, 1992 |
| In order to utilize recycling of exhaust gases at high engine loads in an internal-combustion engine with an exhaust gas turbocharger, optionally with a charge cooler, as well as an exhaust gas recycling valve which is arranged within a connecting pipe through which a partial exhaust gas |
| 5119779 |
Method and device for feeding fuel into the combustion chamber of an internal combustion engine |
June 9, 1992 |
| In a method and device for feeding fuel into a combustion chamber of a cylinder of an internal combustion engine the following steps are discerned to withdraw a small amount of compressed hot gas via a valve opening into the combustion chamber of the cylinder during one working cycle |
| 5117673 |
Process and device for determining the soot content of combustion gases |
June 2, 1992 |
| In order to obtain a high precision of measurement which is independent of the soot content of the exhaust gas to be tested in a given process, the proposal is put forward that the volume of exhaust gas taken for each loading of the filter be determined by means of a suitable algorithm f |
| 5098673 |
Apparatus for growing homogeneous crystals |
March 24, 1992 |
| In order to prevent crystal seeds with retrograde solubility from dissolving in the hydrothermal growing solution at the beginning of the growing process, and to protect the finished crystal at the end of the growing process, and in order to reach the thermodynamic growth equilibrium |
| 5058614 |
Device for controlling the lift of a hydraulically operated valve |
October 22, 1991 |
| In a device for controlling the lift of a hydraulically operated valve comprising an actuating element which is pressure-loaded or spring-loaded in closing direction and which acts as the boundary of an actuating chamber in the valve cage, and further comprising a pressure-generating |
| 5048489 |
Hydraulically operated valve with controlled lift |
September 17, 1991 |
| A hydraulically operated valve with controlled lift, in particular a fuel/gas injection valve for internal combustion engines, has a stop face fixed on the valve stem. For accurate control of the opening of the valve a stop cam is provided, which is drivn mechanically via a friction clut |
| 5044159 |
Exhaust system for two-stroke cycle engines |
September 3, 1991 |
| In an exhaust system for two-stroke cycle engines, comprising an exhaust pipe whose front end, which is characterised by a constant cross-section, is followed by two or more conical sections, these conical sections are configured as diffusers, which are connected to the front end of the |
| 5040496 |
Two-stroke internal combustion engine |
August 20, 1991 |
| In known two-stroke internal combustion engines with piston-controlled intake passages for the fresh charge and one or more exhaust passages for the exhaust gases, the actual direction of flow will deviate from the theoretical flow direction defined by the passage walls because of the |
| 5027645 |
Measuring device for determining distance |
July 2, 1991 |
| To improve the measuring sensitivity of a measuring device to determine the istance between an electrically conducting part, which can be moved in a defined chamber, and a reference point, in particular to determine the upper dead point of the piston of an internal combustion engine, with |
| 5025769 |
Device for feeding fuel into a combustion chamber of an internal combustion engine |
June 25, 1991 |
| For control of the injection rate of a device for feeding fuel into the combustion chamber of an internal combustion engine, comprising an injection valve opening into the combustion chamber, which is used for taking compressed gas from the cylinder and injecting it together with the |
| 5020494 |
Method and device for feeding fuel into the combustion chamber of an internal combustion engine |
June 4, 1991 |
| In a method and device for feeding fuel into a combustion chamber of a cylinder of an internal combustion engine the following steps are discerned to withdraw a small amount of compressed hot gas via a valve opening into the combustion chamber of the cylinder during one working cycle |
| 5000144 |
Internal combustion engine |
March 19, 1991 |
| In a valve-controlled internal combustion engine with direct fuel injection and a swirling air charge, a combustion chamber is located in the piston and is configured as a toroidal part ending in a throat-like cylindrical part towards the piston top. A narrow, ring-shaped overflow passag |
| 4992694 |
Piezoelectric crystal element on the basis of GAPO.sub.4 |
February 12, 1991 |
| In order to improve the temperature stability of piezoelectric and elastic properties of piezoelectric crystal elements based on GaPO.sub.4, preferably for resonator applications, and to facilitate alignment when the crystal elements are cut from the raw crystal bars, the proposal is |
| 4986129 |
Pressure sensor |
January 22, 1991 |
| In order to prevent tilting and torsional stresses from entering the actual sensor element of a pressure sensor comprising a supporting part and an integrated sensor part, the proposal is put forward that the coresponding surfaces of a shoulder of the supporting part and of a fastening e |
| 4962735 |
Intake system for multi-cylinder internal combustion engines |
October 16, 1990 |
| An intake system for multi-cylinder internal combustion engines, in particular of a V-type design, whose suction pipes extend in longitudinal direction and are connected to the intake channel leading towards the intake valve by means of passages of different lengths, a control element |
| 4953390 |
Method and a device for measuring the air/fuel ratio of an internal combustion engine |
September 4, 1990 |
| A method and device for delay-free measurement of the air/fuel ratio of combustion systems, especially internal combustion engines, by measuring individual components of the fuel, the ambient air used for fuel combustion, and the exhaust gas, wherein the water vapor concentrations of |
| 4946545 |
Method of growing homogeneous crystals |
August 7, 1990 |
| In order to prevent crystal seeds with retrograde solubility from dissolving in the hydrothermal growing solution at the beginning of the growing process, and to protect the finished crystal at the end of the growing process, and in order to reach the thermodynamic growth equilibrium |
| 4945873 |
Internal combustion engine with two inlet valves per cylinder |
August 7, 1990 |
| In an internal combustion engine with two or more cylinders and two inlet valves per cylinder, in which the intake passages of two adjacent cylinders, which lead towards the inlet valves, are located side by side, symmetrically relative to the symmetry plane of the two cylinders, and in |
| 4909132 |
Curved supporting elements for joining piston pin bosses to piston head of internal combustion e |
March 20, 1990 |
| In order to achieve less deformation under gas pressure load and also under thermal load, the bottom piece of a piston with ring-carrying barrel is configured as a supporting cone tapering towards the piston pin and connected with the piston pin bosses by means of supporting elements. |
| 4892065 |
Method concerning the delivery of fuel into the combustion chamber of a diesel engine and a devi |
January 9, 1990 |
| The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber via the fuel nozzle. In this way |
| 4881003 |
Method and device for reducing the water content in piezoelectric GAPO.sub. 4 |
November 14, 1989 |
| In order to reduce the water content in piezoelectric GaPO.sub.4 crystal elements the proposal is put forward that each GaPO.sub.4 crystal element should be cut in its entirety from one uniform growth zone of a GaPO.sub.4 raw crystal bar and should not contain any zone boundaries, and th |
| 4846114 |
Method concerning the delivery of fuel into the combustion chamber of a diesel engine and a devi |
July 11, 1989 |
| The delivery of fuel into the combustion chamber of a diesel engine is aided by blowing in an amount of compressed air which is small compared to the stroke volume of the diesel engine after the stream of fuel has been injected into the combustion chamber via the fuel nozzle. In this way |
| 4836162 |
Engine brake of an internal combustion engine |
June 6, 1989 |
| An engine brake in an internal combustion engine for use in motor vehicles, comprising an exhaust valve controlled by a cam via a follower lever, and a device for leaving the exhaust valve slightly open during the combustion stroke. According to the invention the support bearing of the f |
| 4795967 |
Level measuring device for electrically non-conductive liquids |
January 3, 1989 |
| In a level measuring device for electrically non-conductive liquids comprising a sensor which is positioned in a vessel and is in contact with the liquid, and further comprising an evaluation circuit connected to this sensor both compensation of a changing dielectric constant and a high |
| 4791808 |
Method of diagnosis of multi-cylinder internal combustion engines and means for carrying out the |
December 20, 1988 |
| For allocating to the respective cylinders cylinder-specific measured val taken from an internal combustion engine under test with the ignition suppressed the measured values are continuously numbered while the ignition is suppressed. After the suppression of the ignition has ceased |
