Abstract: The invention provides oil-in-water emulsions comprising recombinant collagen-like polymer in an amount sufficient to act as stabiliser of the emulsion. The polymer is especially a polypeptide which is free of helix structure, has an isoelectric point at least 0.5 pH units removed from the pH of the oil-in-water emulsion. Furthermore, bipolar recombinant collagen-like polymers are provided for use in oil-in-water emulsions. The bipolar polymers are polar at one end as a result of a relative abundance of polar amino acids, and apolar at the other end as a result of a relative abundance of apolar amino acids.

Abstract: An apparatus for sonic coupling between an intake tract or engine compartment and a vehicle interior of a motor vehicle has a housing into which sound enters from the intake tract via a first line, and out of which sound exits into the vehicle interior via a second line. A transmission body is arranged in the housing, the transmission body having a gas-tight separating wall between a sound inlet into the housing and a sound outlet out of the housing. The position of the separating wall is held essentially constant by a positioning device. A transmission wall between the separating wall and the housing provides an acoutis transfer function that is adjustable. The separating wall runs generally perpendicular to the longitudinal axis of sound propagation and the transmission wall runs at an angle ? to the longitudinal axis of sound propagation.

Abstract: An apparatus for sonic coupling between an intake tract or engine compartment and a vehicle interior of a motor vehicle has a housing into which sound enters from the intake tract via a first line, and out of which sound exits into the vehicle interior via a second line. A transmission body is arranged in the housing, the transmission body having a gas-tight separating wall between a sound inlet into the housing and a sound outlet out of the housing. The position of the separating wall is held essentially constant by a positioning device. A transmission wall between the separating wall and the housing provides an acoustic transfer function that is adjustable. The separating wall runs generally perpendicular to the longitudinal axis of sound propagation and the transmission wall runs at an angle ? to the longitudinal axis of sound propagation.

Abstract: A fluid guideline with at least two structural elements made of substantially soundproof material has at least one opening for sound damping. An impedance change (in particular in the form of an impedance discontinuity) of the flow resistance of the fluid flowing through the fluid guideline is present between two adjacent structural elements, and the at least one opening is arranged in the region of the impedance change between two adjacent structural elements.

Abstract: The invention provides oil-in-water emulsions comprising recombinant collagen-like polymer in an amount sufficient to act as stabiliser of the emulsion. The polymer is especially a polypeptide which is free of helix structure, has an isoelectric point at least 0.5 pH units removed from the pH of the oil-in-water emulsion. Furthermore, amphiphilic recombinant collagen-like polymers are provided for use in oil-in-water emulsions. The amphiphilic polymers are polar at one end as a result of a relative abundance of polar amino acids, and apolar at the other end as a result of a relative abundance of apolar amino acids.

Abstract: An X-ray examination apparatus and method that provides fast and accurate control of the X-ray dose by combining a fast and inaccurate sensor dose signal for an X-ray sensor and a slow and accurate detector dose signal from an X-ray detector. The combination of the signals takes into account the delay between the two signals so that they are measured at essentially the same time.

Abstract: A fluid guideline with at least two structural elements made of substantially soundproof material has at least one opening for sound damping. An impedance change (in particular in the form of an impedance discontinuity) of the flow resistance of the fluid flowing through the fluid guideline is present between two adjacent structural elements, and the at least one opening is arranged in the region of the impedance change between two adjacent structural elements.

Abstract: The invention relates to a silencer (1) for noise-laden gas pipes, especially for a suction pipe and/or an exhaust pipe of an internal combustion engine, comprising an outer pipe (2) with an inlet side (3) and an outlet side (4), a plurality of diaphragm rings (9, 9′, 9″, ′″, 9″″) each with an outer surface connected (5) to the inner surface of the outer pipe (2), at least one insert (6) with an outer surface connected (7) to the inner surface of the outer pipe (2) and/or the diaphragm rings (9, 9′, 9″, 9′″, 9″″) and with a plurality of openings (8) which are closed on one side. Said insert (6) forms sub-pipes for the gas flow in the silencer, and the openings (8), which are closed on one side, open into the sub-pipes, the depth thereof being /4 in relation to the wavelength of a frequency to be silenced.

Abstract: An internal vibration absorber, configured to be installed in hollow shafts, includes a central absorber mass, a rigid outer shell coaxially surrounding the absorber mass, and an elastomeric spring element interconnecting the central mass and the outer shell in an elastic/resilient manner. The elastomeric spring element includes circumferentially spaced resilient radial spacers, which are functionally independent from one another. The radial spacers may extend axially along the entire length of the absorber mass, or the spacers may engage the absorber mass at axially spaced apart locations. All spacers engage axially the central absorber mass at such a distance apart that an appreciable wobbling of the absorber mass within the shell is impossible even when the absorber mass is in soft resilient suspension.

Abstract: The invention relates to a silencer (1) for noise-laden gas pipes, especially for a suction pipe and/or an exhaust pipe of an internal combustion engine, comprising an outer pipe (2) with an inlet side (3) and an outlet side (4), a plurality of diaphragm rings (9, 9′, 9″, 9′″,9″″) each with an outer surface connected (5) to the inner surface of the outer pipe (2),at least one insert (6) with an outer surface connected (7) to the inner surface of the outer pipe (2) and/or the diaphragm rings (9, 9′, 9″, 9′″, 9″″) and with a plurality of openings (8) which are closed on one side. Said insert (6) forms sub-pipes for the gas flow in the silencer, and the openings (8), which are closed on one side, open into the sub-pipes, the depth thereof being /4 in relation to the wavelength of a frequency to be silenced.

Abstract: A reed valve includes a generally wedge shaped reed cage or block defining a fluid flow passage and having substantially coplanar discharge ports. A reed is mounted at a common hinge end to the reed cage and has a plurality of petals each of which overlies a corresponding one of the ports. The petals have predetermined edge profiles to establish different transverse widths at their hinge axes so that the petals overlying outer low pressure zones in the reed cage lift from their port closing positions at a lower fluid pressure than the petals that overlie higher pressure zones in the reed cage, thereby providing multiple stage lifting and reflex action by the reed petals relative to the reed cage ports.

Abstract: An internal vibration absorber, configured to be installed in hollow shafts, includes a central absorber mass, a rigid outer shell coaxially surrounding the absorber mass, and an elastomeric spring element interconnecting the central mass and the outer shell in an elastic/resilient manner. The elastomeric spring element includes circumferentially spaced resilient radial spacers, which are functionally independent from one another. The radial spacers may extend axially along the entire length of the absorber mass, or the spacers may engage the absorber mass at axially spaced apart locations. All spacers engage axially the central absorber mass at such a distance apart that an appreciable wobbling of the absorber mass within the shell is impossible even when the absorber mass is in soft resilient suspension.

Abstract: A reed valve includes a generally wedge shaped reed cage or block defining a fluid flow passage and having substantially coplanar discharge ports. A reed is mounted at a common hinge end to the reed cage and has a plurality of petals each of which overlies a corresponding one of the ports. The petals have predetermined edge profiles to establish different transverse widths at their hinge axes so that the petals overlying outer low pressure zones in the reed cage lift from their port closing positions at a lower fluid pressure than the petals that overlie higher pressure zones in the reed cage, thereby providing multiple stage lifting and reflex action by the reed petals relative to the reed cage ports.

Abstract: A power unit bearing, in particular for motor vehicles, is characterized by mechanically integrally joining a conventional bearing, in particular a hydraulic bearing, to a connectable or disengageable hydraulic switching module for the purpose of matching the power unit characteristics to changing operational conditions of this power unit. The switching module is inserted between a chassis-side base plate of the conventional bearing body and a chassis-side adapter of the power unit bearing.

Abstract: The broadband surface-like absorber of the invention is used, in particular, for absorbing troublesome airborne noise in the acoustic frequency range. The broadband surface-like absorber, which operates on the Helmholtz resonator principle, is distinguished by a checkerwork of irregular construction, the webs of which are aligned with their narrow sides perpendicular to the principal surface of the perforated plate and the side edges of which are connected in a sound-pressure-resistant and fluidtight manner on the sound side to the rear side of the perforated plate and, on the rear side, to an extended-area cavity boundary aligned with the same orientation as the perforated plate to form differently tuned chamber resonators.

Abstract: The invention relates to a directly hydraulically damping broadband damper designed as a sequence of Helmholtz resonators with elastomer/gas springs to damp pressure pulses in pressurized liquids and in the audible range frequencies, in particular in hydraulic servo systems.

Abstract: An intake silencer is designed as a broadband silencer for noises causes by intake of combustion air into internal combustion engines. To achieve the broadband effect, an axial sequence of resonator chambers with different volumes is formed by partitions which extend transversely to the intake pipe in a resonator that surrounds the intake pipe Each resonator chamber communicates through openings in the wall of the intake pipe with the air sucked through the intake pipe. By matching the open surface area of the openings, the thickness of the wall of the intake pipe in the area of the openings and the volume of the resonator chambers, a continuous broadband silencing may be set even over a wide frequency range, the range of practical interest in the present application extending combustion from to 1 to 10 kHz.

Abstract: In an anti-skid device for motor vehicles, having a plurality of chain strands (10) distributed over the periphery of a holder (4), which holder can be set into a rotational motion, the holder exhibits a hub (6) having a ring collar (11). The ring collar (11) is surrounded by the ring bar (ring web) (18) of a friction wheel (7). Two plates (14, 15) of a pair of clamping plates are pressed by screw connections (16) against the side faces of the ring collar (11) and of the ring bar. The lower plate (15) is provided with slots (18) through which the ends of end links (20) of the chain strands (10) protrude into chambers (19) disposed in the ring bar (8) of the friction wheel. The anchorage of the end 1 inks (20) in the chambers (19) is here served by bolts (21).