boeing executives rally behind 787boeing executives rally behind 787boeing executives rally behind 787 - battery management unit
Two top Boeing companies
Executives made a firm defense of the 787 Dreamliner at a Japanese news conference on Friday morning, insisting that once the company proposed a repair and installation, there would be no battery fire on the plane.
Ray Connor, executive president of Boeing commercial aircraft
Mike Sinnett, president in charge of the 787 system, outlined the technical details of the solution in the home town of the two largest existing operators of the aircraft.
They said Boeing is expected to complete the tests requested by the Federal Aviation Administration in a few weeks, rather than months.
Since most of the tests are done in the lab, Boeing plans to do only one flight test.
The airline's customers fully support Boeing's solutions, Conner said.
"Everyone is very comfortable with what we are doing," he said . ".
"I plan to fly for the first time.
"Executives outlined the multi-layer protection designed to prevent the battery from overheating, eventually forming the final protection: a sealed steel housing that can discharge any gas directly from the aircraft.
The Box "eliminates the possibility of a fire," says Sinnett ".
The first layer of improvement is inside the GS Yuasa factory where batteries are produced in Japan.
Boeing and GS Yuasa have strengthened their quality control and have carried out new tests on batteries that go offline.
A series of design changes have also been made inside the battery.
These include electrical insulators wrapped around each of the eight batteries, which can be electrically isolated even in the event of a battery failure.
Electrical and thermal insulation installed above, below and between the battery will help prevent the heat of the battery from interacting with each other.
Wire sleeves and wires inside the battery will be upgraded to better resist heat and friction and have new self
The locking fastener will connect the metal rod of the battery eight batteries.
Small holes in the bottom of the battery box containing the battery and battery-
The management unit will allow moisture to be discharged from the battery.
In addition, Boeing is adjusting the battery charger to reduce the acceptable charging level of the battery.
It will reduce the maximum amount of charge allowed and increase the lower level of discharge allowed.
The last level of protection is the steel box that surrounds everything.
Sinnett claims battery-
He was apparently surprised by the skeptical audience.
He insisted that the media had misreported the use of Boeing's batteries.
A closed box described as "containing fire.
"No," Sinatra said.
"The fence left us with no fire from the beginning," he said . ".
He said the electrolyte inside the battery
Flammable liquid that releases oxygen during combustion-
"There is not enough oxygen released to make a substantial contribution to combustion.
"The exhaust system, including the tubes from the battery box to the outside of the aircraft, will take out the air and make sure there is not enough oxygen," he said.
Boeing has been testing boxes and ventilation systems for six weeks, he said.
The heater is placed on the side of the internal battery to cause a short circuit, and then, when the battery is discharged from the thermal electrolytic mass, Boeing uses an ignition device to try to induce combustion.
"We can't ignite the electrolyte anyway," he said . ".
Boeing then pumped the external oxygen into the inside of the battery, "The only purpose was to try to produce a burn," and even then they were able to induce a burn that lasted only 200 ms before going out.
"We have proven that it is possible to have no fire," Sinnett concluded . ".
Sinnett also raised objections to the use of the term "heat out of control --
Battery overheating out of control
This is what happened in the two incidents that prompted the 787 fleet to fly --
A fire on a 787-square-meter ground in Boston and a battery burning during a Japanese flight --
According to the National Transportation Safety Commission and the Japan Transportation Safety Commission, the two investigation agencies.
But Sinnett says the term has different uses based on different "points of view," and the only thing that really matters to Boeing is "plane level ".
He insisted that Heat runaway did not happen at this level.
He said there was no fire on the Japanese flight.
In the case of the Boston fire, only a few small flames were observed outside the box, "there is oxygen there", but there is no fire inside the battery.
"In any case, there is no fire in the blue box of the battery," Sinnett said . ".
Seattle Times two top Boeing companies
Executives made a firm defense of the 787 Dreamliner at a Japanese news conference on Friday morning, insisting that once the company proposed a repair and installation, there would be no battery fire on the plane.
Ray Connor, executive president of Boeing commercial aircraft
Mike Sinnett, president in charge of the 787 system, outlined the technical details of the solution in the home town of the two largest existing operators of the aircraft.
They said Boeing is expected to complete the tests requested by the Federal Aviation Administration in a few weeks, rather than months.
Since most of the tests are done in the lab, Boeing plans to do only one flight test.
The airline's customers fully support Boeing's solutions, Conner said.
"Everyone is very comfortable with what we are doing," he said . ".
"I plan to fly for the first time.
"Executives outlined the multi-layer protection designed to prevent the battery from overheating, eventually forming the final protection: a sealed steel housing that can discharge any gas directly from the aircraft.
The Box "eliminates the possibility of a fire," says Sinnett ".
The first layer of improvement is inside the GS Yuasa factory where batteries are produced in Japan.
Boeing and GS Yuasa have strengthened their quality control and have carried out new tests on batteries that go offline.
A series of design changes have also been made inside the battery.
These include electrical insulators wrapped around each of the eight batteries, which can be electrically isolated even in the event of a battery failure.
Electrical and thermal insulation installed above, below and between the battery will help prevent the heat of the battery from interacting with each other.
Wire sleeves and wires inside the battery will be upgraded to better resist heat and friction and have new self
The locking fastener will connect the metal rod of the battery eight batteries.
Small holes in the bottom of the battery box containing the battery and battery-
The management unit will allow moisture to be discharged from the battery.
In addition, Boeing is adjusting the battery charger to reduce the acceptable charging level of the battery.
It will reduce the maximum amount of charge allowed and increase the lower level of discharge allowed.
The last level of protection is the steel box that surrounds everything.
Sinnett claims battery-
He was apparently surprised by the skeptical audience.
He insisted that the media had misreported the use of Boeing's batteries.
A closed box described as "containing fire.
"No," Sinatra said.
"The fence left us with no fire from the beginning," he said . ".
He said the electrolyte inside the battery
Flammable liquid that releases oxygen during combustion-
"There is not enough oxygen released to make a substantial contribution to combustion.
"The exhaust system, including the tubes from the battery box to the outside of the aircraft, will take out the air and make sure there is not enough oxygen," he said.
Boeing has been testing boxes and ventilation systems for six weeks, he said.
The heater is placed on the side of the internal battery to cause a short circuit, and then, when the battery is discharged from the thermal electrolytic mass, Boeing uses an ignition device to try to induce combustion.
"We can't ignite the electrolyte anyway," he said . ".
Boeing then pumped the external oxygen into the inside of the battery, "The only purpose was to try to produce a burn," and even then they were able to induce a burn that lasted only 200 ms before going out.
"We have proven that it is possible to have no fire," Sinnett concluded . ".
Sinnett also raised objections to the use of the term "heat out of control --
Battery overheating out of control
This is what happened in the two incidents that prompted the 787 fleet to fly --
A fire on a 787-square-meter ground in Boston and a battery burning during a Japanese flight --
According to the National Transportation Safety Commission and the Japan Transportation Safety Commission, the two investigation agencies.
But Sinnett says the term has different uses based on different "points of view," and the only thing that really matters to Boeing is "plane level ".
He insisted that Heat runaway did not happen at this level.
He said there was no fire on the Japanese flight.
In the case of the Boston fire, only a few small flames were observed outside the box, "there is oxygen there", but there is no fire inside the battery.
"In any case, there is no fire in the blue box of the battery," Sinnett said . ".
Seattle Times two top Boeing companies
Executives made a firm defense of the 787 Dreamliner at a Japanese news conference on Friday morning, insisting that once the company proposed a repair and installation, there would be no battery fire on the plane.
Ray Connor, executive president of Boeing commercial aircraft
Mike Sinnett, president in charge of the 787 system, outlined the technical details of the solution in the home town of the two largest existing operators of the aircraft.
They said Boeing is expected to complete the tests requested by the Federal Aviation Administration in a few weeks, rather than months.
Since most of the tests are done in the lab, Boeing plans to do only one flight test.
The airline's customers fully support Boeing's solutions, Conner said.
"Everyone is very comfortable with what we are doing," he said . ".
"I plan to fly for the first time.
"Executives outlined the multi-layer protection designed to prevent the battery from overheating, eventually forming the final protection: a sealed steel housing that can discharge any gas directly from the aircraft.
The Box "eliminates the possibility of a fire," says Sinnett ".
The first layer of improvement is inside the GS Yuasa factory where batteries are produced in Japan.
Boeing and GS Yuasa have strengthened their quality control and have carried out new tests on batteries that go offline.
A series of design changes have also been made inside the battery.
These include electrical insulators wrapped around each of the eight batteries, which can be electrically isolated even in the event of a battery failure.
Electrical and thermal insulation installed above, below and between the battery will help prevent the heat of the battery from interacting with each other.
Wire sleeves and wires inside the battery will be upgraded to better resist heat and friction and have new self
The locking fastener will connect the metal rod of the battery eight batteries.
Small holes in the bottom of the battery box containing the battery and battery-
The management unit will allow moisture to be discharged from the battery.
In addition, Boeing is adjusting the battery charger to reduce the acceptable charging level of the battery.
It will reduce the maximum amount of charge allowed and increase the lower level of discharge allowed.
The last level of protection is the steel box that surrounds everything.
Sinnett claims battery-
He was apparently surprised by the skeptical audience.
He insisted that the media had misreported the use of Boeing's batteries.
A closed box described as "containing fire.
"No," Sinatra said.
"The fence left us with no fire from the beginning," he said . ".
He said the electrolyte inside the battery
Flammable liquid that releases oxygen during combustion-
"There is not enough oxygen released to make a substantial contribution to combustion.
"The exhaust system, including the tubes from the battery box to the outside of the aircraft, will take out the air and make sure there is not enough oxygen," he said.
Boeing has been testing boxes and ventilation systems for six weeks, he said.
The heater is placed on the side of the internal battery to cause a short circuit, and then, when the battery is discharged from the thermal electrolytic mass, Boeing uses an ignition device to try to induce combustion.
"We can't ignite the electrolyte anyway," he said . ".
Boeing then pumped the external oxygen into the inside of the battery, "The only purpose was to try to produce a burn," and even then they were able to induce a burn that lasted only 200 ms before going out.
"We have proven that it is possible to have no fire," Sinnett concluded . ".
Sinnett also raised objections to the use of the term "heat out of control --
Battery overheating out of control
This is what happened in the two incidents that prompted the 787 fleet to fly --
A fire on a 787-square-meter ground in Boston and a battery burning during a Japanese flight --
According to the National Transportation Safety Commission and the Japan Transportation Safety Commission, the two investigation agencies.
But Sinnett says the term has different uses based on different "points of view," and the only thing that really matters to Boeing is "plane level ".
He insisted that Heat runaway did not happen at this level.
He said there was no fire on the Japanese flight.
In the case of the Boston fire, only a few small flames were observed outside the box, "there is oxygen there", but there is no fire inside the battery.
"In any case, there is no fire in the blue box of the battery," Sinnett said . ".