35results about How to "Compensation for pressure loss" patented technology

A gas generator, in particular for a vehicle occupant restraint system, has a pyrotechnical propellant (16), a combustion chamber (12) filled with the pyrotechnical propellant (16), an igniter (14) associated with the combustion chamber (12), a pressure chamber (18), filled with compressed gas, which is adjacent to the combustion chamber (12) and has a first opening (22) remote from the combustion chamber (12) closed by a first diaphragm (26), the diaphragm (26) being destroyed upon activation of the igniter (14), and a second pressure chamber (28) which is filled with compressed gas and has a second opening (34) closed by a second diaphragm (36). The second diaphragm (36) is likewise destroyed upon activation of the igniter (14), and the openings (22, 34) and the gas volumes of the pressure chambers (18, 28) are adapted so that compressed gas flows out from the second pressure chamber (28) for a longer period than compressed gas from the first pressure chamber (18) to increase a gas supply time of the gas generator (10). Further, a method of activating a vehicle occupant restraint system is described.

A compact filter has a filter housing and a compact filter element that is arranged in the filter housing, wherein the filter element is exchangeable. The compact filter element has a filter body having a longitudinal axis. The compact filter element has an unfiltered air side and a filtered air side. A baffle element is arranged at the unfiltered air side of the compact filter element. The baffle element is removable together with the filter element from the filter housing and has at least one baffle surface that is slanted relative to the longitudinal axis.

A heat exchanger plate for an evaporator includes a flow transverse distribution device. Disks of the flow transverse distribution device conduct the medium to be evaporated to the flow channel extending in the direction of the longitudinal axis. The disks include openings allowing a flow of the medium in the direction of the longitudinal axis with comparatively higher flow resistance than in the direction of the transverse axis. The number of disks arranged one behind the other in the direction of the longitudinal axis varies over the width of the heat exchanger plate in the direction of the transverse axis. On each width section, in which the entry of the medium into the disks arranged one behind the other is intended, the comparatively largest number of disks is provided one behind the other. As the distance from the entrance increases, the number decreases in the direction of the transverse axis.

A heat pump type clothes dryer compensates for pressure loss caused by a radiator to increase the flow rate of air passing around the radiator, and suppressing introduction of ambient air through gaps formed in air flow lines to avoid degradation in drying capacity, while avoiding an increase in the power consumption or noise of a fan. The clothes dryer includes a drum to accommodate clothes, an air suction or intake line to suck air into the drum, an air exhaust line to exhaust air from the drum, a heat pump circuit including a compressor, a radiator, a pressure reducer, and a heat absorber, where the heat absorber is provided in the air exhaust line, and the radiator is provided in the air suction or intake line, a first blowing mechanism provided in the air exhaust line, and a second blowing mechanism provided in the air suction or intake line.

The invention relates to a device for preheating charging materials (3) for glass melting facilities by means of exhaust gases thereof, having a vertical preheating shaft (1) through which a heat exchanger (10) extends, through which the exhaust gases are directed, wherein the upper end of the preheating shaft (1) has a charging opening (2) for the charging materials (3) and the lower end has a discharge device (6) for the preheated charging materials (3), and wherein the inlet of the heat exchanger is connected to a supply line and the outlet is connected to an outlet line for the exhaust gases. In order that a higher portion of the heat is recovered from the exhaust gases at a lower installation height and lower volume and the suctioning in of ambient air as false air and environmental contamination can be reduced to a minimum degree in such a device, the supply line (10b) for the exhaust gases has at least one branch in the form of an outlet line (13a) for the outlet of a partial volume of the hot gases (13) and the outlet line (13a) is connected to at least one sealing gas line (16) which is open to the bottom and which is arranged in the region of the charging materials (3) above the at least one exhaust gas lead-through (10) of the heat exchanger for releasing the hot gases into the charging materials (3).

A thermal management system for an electric drive system, preferably for a vehicle, includes an electric drive including an electric motor and power electronics. The electric motor and the power electronics are integrated in a cooling circuit and are cooled by a coolant circulating in the cooling circuit. The coolant is circulated by a coolant pump. In the case of a variable thermal management system, the electric motor and the power electronics are in spatial contact with respective cooling units. The cooling units of the electric motor and of the power electronics are arranged parallel to each other and an electrically controlled coolant distributor is positioned between the coolant pump and the cooling units which coolant distributor has two outlets. One outlet leads to the cooling unit of the electric motor and one outlet leads to the cooling unit of the power electronics and the outlets of the cooling units are merged into a channel and led back to the coolant pump.

The invention discloses a novel round brush and a high pressure cleaning machine with the same and belongs the fields of cleaning equipment auxiliary parts and machines. The round brush comprises an upper sprayer and a lower sprayer which are mounted fixedly and integrally and which form a spraying cavity; the lower sprayer is fixedly provided with a brush disc provided with a plurality brush hairs, and the brush disc is provided with a plurality of water discharging holes among the brush hairs; the lower sprayer is connected to a water incoming pipe, and the water outlet of the water incoming plate extends into the spraying cavity; the upper sprayer is provided with an air incoming channel communicating with the spraying cavity, and a pressurizer pressurizing the air flow entering the spraying cavity is arranged between the air incoming channel and the water outlet of the water incoming pipe and is located in the spraying cavity. The round brush has the advantages that energy and water are saved, the brushing effect is fine, a vehicle can be protected and the service life is long, and the round brush is widely applied to vehicle washing.

The invention discloses an oil well cement gas expansion agent, which consists of 30-40 parts by weight of a gas generating agent and 60-70 parts by weight of a stabilizer. The gas generating agent is a sulfohydrazide compound, and the stabilizer is at least one of silicon dioxide and calcium silicate. The oil well cement gas expansion agent can be used for daily dry blending work, and also can be used for on-the-spot wet blending work. When the oil well cement gas expansion agent acts on cement paste, the temperature reaches 35DEG C under an alkaline condition, nitrogen release starts. By means of the effect of the stabilizer in the components, small bubbles can be evenly distributed in the cement paste, and the only generated gas is nitrogen, which has no corrosion to pipes. In addition, the oil well cement gas expansion agent has good compatibility and compatibleness with other cement additives, also can effectively compensate the pressure loss and volume shrinkage when the cement paste solidifies, and prevents well cementing oil gas and water channeling.

The invention relates to an engine oil outer cooling and circulating system of an engine. The engine oil outer cooling and circulating system comprises a constant-temperature control mechanism for performing constant-temperature control on engine oil, wherein an oil inlet of the constant-temperature control mechanism is communicated with an oil outlet of a filter base of the engine through an oil inlet tube, and the oil outlet is communicated with an oil return port of the filter base of the engine through an oil outlet tube. The constant-temperature control mechanism comprises a temperature master control unit, a temperature detection mechanism and a cooling mechanism, wherein standard values of the temperature of the engine oil of the engine are stored in the temperature master control unit; the temperature detection mechanism is used for detecting the temperature of the engine oil in real time, is arranged in the oil outlet tube and can instantly transmit the detected engine oil temperature to the temperature master control unit connected with a signal output end of the temperature detection mechanism; the cooling mechanism is used for cooling the engine oil and receives control signals emitted by the temperature master control unit to cool the engine oil under different engine operation conditions by adjusting the flow and speed of self cooling liquid. The engine oil outer cooling and circulating system is simple in structure, can effectively ensure the temperature of the engine oil flowing into the engine, simultaneously ensures the pressure of the engine oil flowing into the engine, provides good operation environments for the engine and is suitable of engines of various vehicles.

The invention relates to a textile machine, which comprises a plurality of yarn processing stations for processing yarn. In order to heat yarn, a plurality of heating devices are arranged for each of the yarn processing stations. The heating devices are connected with suction pipes respectively via their respective inhale pipes so as to suck out the steam. The suction pipeline is connected with a negative pressure source, wherein a control instrument is arranged for adjusting the suction strength. The control instrument directly applies on the negative pressure source so as to realize the stepless adjustment of the suction strength of the steam.