摘要:
A DC/DC converter which can be operated alternately as a step-up converter in a first direction of energy flow and as a step-down converter in a second direction of energy flow is disclosed. Potential isolation between the low-voltage side and the high-voltage side of the converter is achieved by a magnetic compound unit, which has not only a transformer function but also an energy store function. The converter operates as a push-pull converter in both directions of energy flow. The DC/DC converter can be used for example in motor vehicles with an electric drive fed by fuel cells.
摘要翻译:公开了一种DC / DC转换器,其可以在能量流的第一方向上作为升压转换器交替地操作,并且在第二能量方向上作为降压转换器。 转换器的低电压侧和高压侧之间的电位隔离是通过磁性复合单元实现的,该磁性复合单元不仅具有变压器功能,而且具有能量存储功能。 转换器在能量流的两个方向上作为推挽转换器工作。 DC / DC转换器可以用于例如具有由燃料电池馈送的电驱动的机动车辆中。
摘要:
An embodiment of the invention relates to a single photon emission system having a proximal end, a distal end, and a single photon emitter located between the proximal end and the distal end; wherein the single photon emission system is adapted to guide optical pump radiation, which is inputted at the proximal end to optically excite the single photon emitter, along a predefined direction that runs from the proximal end to the distal end; and wherein single photons emitted by said single photon emitter, are guided along said predefined direction to the distal end.
摘要:
A cartridge (21) for multi-component masses has a first receiving member (22) having a receiving space (23) for at least one component (13) of the multi-component mass, and at least one other receiving member (27) extending parallel to the first receiving member (22) and having a receiving space (28) for another component (18) of the multi-component mass, with the receiving space (23) of the first receiving member (22) being larger than the receiving space (28) of the other receiving member (27), and the first receiving member (22) having a lower elasticity, at least in a direction transverse to its longitudinal extent, than the other receiving member (27).
摘要:
A cartridge (21) for multi-component masses has a first receiving member (22) having a receiving space (23) for at least one component (13) of the multi-component mass, and at least one other receiving member (27) extending parallel to the first receiving member (22) and having a receiving space (28) for another component (18) of the multi-component mass, with the receiving space (23) of the first receiving member (22) being larger than the receiving space (28) of the other receiving member (27), and the first receiving member (22) having a lower elasticity, at least in a direction transverse to its longitudinal extent, than the other receiving member (27).
摘要:
A foil container (11) has two foil bag chambers (12, 16) arranged next to one another for compound components of a multi-component compound which are stored separately from one another, and a head (21) having a base plate (22) with a contact side (23) at which two receptacle portions (24, 25) are provided, each for one end of the respective foil bag chambers (12, 16), and a mixer connection (31) in which there are provided a first outlet opening (33) for one of the compound components of the multi-component compound and a second outlet opening (34) for an additional compound component of the multi-component compound and arranged in the first outlet opening (33).
摘要:
A system for generating hydrogen gas for use in a fuel cell includes a powder metal hydride source, a water source, a mixing device and a catalytic hydrogen generating chamber. A method of generating hydrogen for use in a fuel cell includes the steps of: providing a source of dry metal hydride fuel; providing a source of steam; providing a mixing/reaction chamber connected to the source of dry metal hydride fuel and to the source of steam; operating the mixing/reaction chamber to transport the dry metal hydride fuel from its source to a byproduct receptacle and feeding steam into the mixing/reaction chamber such that the steam reacts with the dry metal hydride fuel to produce hydrogen gas and a dry metal powder byproduct; removing the dry metal powder byproduct from the mixing/reaction chamber; and extracting the hydrogen gas from the mixing/reaction chamber.
摘要:
A foil container (11) has two foil bags (12, 16) arranged next to one another for components of a multi-component compound which are stored separately from one another and has a one-piece head part (21), a head part (21) having a base plate (22) having a contact side (23) at which a first receptacle portion (24) is provided for an end of the first foil bag (12) and a second receptacle portion (25) is provided for an end of the second foil bag (16), a mixer connection (31) projecting from a side (26) of the base plate opposite the contact side (23), the mixer connection (31) having a first outlet channel (38) with a first outlet opening at its free end (37) for one of the components of the multi-component compound and a second outlet channel (35) with a second outlet opening at its free end (37) for at least one additional component of the multi-component compound, with the first outlet channel (38) being divided at least in the area of the free end (37) of the mixer connection (31) into two separate partial channels (33, 34), between which the second outlet channel (35) is arranged, and with the base plate (22) having a first passage channel (27) for joining the first receptacle portion (24) with the first outlet channel (38) and a second passage channel (28) for joining the second receptacle portion (25) with the second outlet channel (35).
摘要:
A circuit arrangement for supplying electrical energy to a power supply has a fuel cell and an accumulator arrangement. Electrical energy is delivered by the accumulator arrangement during the starting procedure, and is fed into the power supply by the accumulator arrangement via at least one DC/DC converter during starting of the circuit arrangement.
摘要:
A foil container (11) has two foil bag chambers (12, 16) arranged next to one another for compound components of a multi-component compound which are stored separately from one another, and a head (21) having a base plate (22) with a contact side (23) at which two receptacle portions (24, 25) are provided, each for one end of the respective foil bag chambers (12, 16), and a mixer connection (31) in which there are provided a first outlet opening (33) for one of the compound components of the multi-component compound and a second outlet opening (34) for an additional compound component of the multi-component compound and arranged in the first outlet opening (33).
摘要:
A method of anchoring a fastening element includes drilling a borehole (7) in a constructional component (6) with a percussively-rotationally driven hollow drill (12), while aspirating produced drillings and drilling dust with a vacuum source (26) through a gap between an outer side of the hollow drill (12) and a wall of the borehole (7) during drilling of the borehole (7), immediately after formation of the suction-cleaned borehole (7), filling the borehole (7) with a self-hardenable mortar (41), and inserting the fastening element (46) into the self-hardenable mortar (41).