摘要:
Es wird eine Temperier-Vorrichtung (1) zum Erwärmen und/oder Abkühlen von Gasen oder Gasgemischen, insbesondere für den Einsatz im Bereich Atemschutz beschrieben, wobei die Temperier-Vorrichtung (1) mindestens einem Lufteinlass (11, 101), mindestens einem Luft-auslass (13, 103) und einem Wirbelrohr (14, 15, 105) oder auch mehrere Wirbelrohren (14, 15, 105) aufweist. Das oder die Wirbelrohre weisen jeweils einen Wirbelrohreinlass (16, 17, 104), einen Warmluftausgang (22, 24, 107) und einen Kaltluftausgang (23, 25, 106) auf, wobei der zumindest eine Lufteinlass (11, 101) mit mindestens einem Wirbelrohreinlass (16, 17, 104) des zumindest einen Wirbelrohrs (14, 15, 105) fluidleitend verbindbar ist. Weiter ist der zumindest eine Luftauslass (13, 103) fluidleitend mit mindestens einem Warmluftausgang (22, 24, 107) und mindestens einem Kaltluftausgang (23, 25, 106) des Wirbelrohrs beziehungsweise der Wirbelrohre (14, 15, 105) zumindest in einer Strömungsrichtung fluidleitend verbindbar. Davon abgesehen ist mindestens ein Steuerelement (31, 108, 109) vorgesehen, mittels dessen wahlweise die Luftstrom menge zwischen dem zumindest einen Warmluftausgang (22, 24, 107) und dem zumindest einen Luftauslass (13, 103) oder die Luftstrommenge zwischen dem zumindest einen Kaltluftausgang (23, 25, 106) und dem zumindest einen Luftauslass (13, 103) einstellbar ist.
摘要:
Die Erfindung betrifft eine Atemschutzmaske zum Filtern von Atemluft eines Trägers der Atemschutzmaske. Die Atemschutzmaske umfassteinen Maskengrundkörper (1) zum Bedecken einer Nase und eines Munds des Trägers und mindestens eine an dem Maskengrundkörper (1) angeordnete Atemventilanordnung (3) mit einem Ventilsitzkörper (8) undmit einer zwi- schen einer Freigabestellung und einer Schließstellung verlagerbaren Ven- tilmembran (11),die in der Freigabestellung eine Atemöffnungfreigibt, in der Schließstellung die Atemöffnungverschließt und eine Verstärkungs- struktur (16)umfasst, die mindestens einen bezüglich einer Ventilmemb- ran-Mittelebene schräg verlaufenden Verstärkungs-Schrägkörper (20) auf- weist.
摘要:
An inhalation valve for use with an emergency escape breathing device (EEBD) is provided. The EEBDs may be used in emergency situations to protect a user from smoke, chemicals, particles, or other hazardous elements in the air, and provide breathable air to the user. An EEBD (100) may comprise a cylinder (104) of air, a hood (102), and a hose (106) to provide air from the cylinder (104) to the hood (102). The EEBD (100) may also comprise an inhalation valve (108) attached to the hose (106). While the cylinder (104) is providing air to the hood (102), the pressure from the air from the cylinder (104) may keep the inhalation valve (108) closed. When the cylinder (104) runs out of air, the inhalation valve (108) may open, allowing the user to continue breathing while wearing the hood (102). In some embodiments, the inhalation valve (200) may also have a filter (210) operable to filter the ambient air that enters the hood (102) through the inhalation valve (200).
摘要:
A breathing apparatus including a face mask adapted to substantially cover a face of a user and a neck component attached to the face mask and surrounding the user's neck. The face mask has a peripheral region which forms a pneumatic seal against the face and an air inlet arranged proximal to the peripheral region. The neck component houses a flow generator configured to receive unfiltered air from outside of the breathing apparatus, filter the unfiltered air, and convey the filtered air to the face mask through the air inlet.
摘要:
A personal respiratory protection device (10) comprising an upper panel (18), a central panel (16), and a lower panel (20), the central panel (16) being separated from each of the upper and lower panels (18) by a first and second fold (36), seam, weld (76) or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold (36), seam, weld (76) or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the lower panel (20) includes a stiffening sheet (40) which has a longitudinal crease line, wherein the stiffening sheet (40) is folded about the longitudinal crease line when the device is in use.
摘要:
A gas pressure reducer (100) comprises a mobile element (2) arranged for driving a pressure regulating valve (5) according to a pressure force, a biasing element (3) for pushing the mobile element toward a rest position, and an electrically-powered master system which acts on the biasing element for varying a return force of said biasing element. The master system allows varying a reference pressure value for the regulation of the pressure existing at a low pressure gas outlet (1 LP). When the master system is no longer electrically supplied, the mobile element (2) is driven by the pressure force with respect to a last value of the return force existing just before electrical supply of said master system has stopped.
摘要:
Embodiments relate generally to methods, systems, and devices for opening and closing one or more ports (1402) to allow a wearer of a self-contained breathing apparatus (SCBA) (100) to breathe ambient air. Incorporation of a fresh-air port assembly (300) into the mask (102) of an SCBA (100) may enable the user to breathe ambient air when purified air is not required, and may allow a user to quickly switch to purified air when necessary. A fresh-air port assembly (300) positioned between the demand valve (104) and mask (102) of an SCBA (100) may be operable to disconnect and/or disable the demand valve (104) to allow ambient air into the mask (102), as well as to control the exhalation valve (202) of the mask (102) so that a user may easily breathe ambient air.
摘要:
An exhale valve assembly includes a housing, a valve carrier body, a primary valve assembly, a plunger, a lock assembly, and an air pressure activated actuator assembly. The valve carrier body is disposed the housing and has a passageway. The primary valve assembly is mounted to the valve carrier body. A first air flow path passes through the passageway and a second air flow path passes through the primary valve assembly. The plunger, is configured to permit a flow through the first air flow path when the plunger is in a first position and to direct a flow through the second air flow path when the plunger is in a second position. The lock assembly is configured to secure the plunger in the first position. The air pressure activated actuator assembly is configured to release the lock responsive to a pressure change within the cavity of the housing.