La climatisation automobile, formation PSA Peugeot Citroën



Faire du froid! La réfrigération pour l’air conditionné de la voiture.

Umatic RIP 1990 ATTENTION LE GAZ R12 (fréon) n’est plus utilisé depuis le début des années 90, le principe reste le même avec les circuit au R134.

Tout le monde peut facilement comprendre le fonctionnement de la production de froid, de son frigo ou de sa clim.

Après le dialogue de ménage très pédagogique… la partie technique bien illustrée, ne zappez pas, la vulgarisation a souvent du bon.

Bientôt une vidéo concernant les interventions sur le système.

source

Austin 7.

Austin 7.

From Wikipedia:
Austin 7
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For information on the Mini based Austin Seven see Mini.
Austin 7 1926 Austin 7 Box saloon
Manufacturer Austin Motor Company
Production 1922–1939
290,000
Predecessor None
Successor Austin 8, Austin Big 7
Class Subcompact car
Body style Various, including vans
Engine 747 cc straight-4
Wheelbase 75 inches (1.905 m)

The Austin 7 was a car produced from 1922 through to 1939 in the United Kingdom by the Austin Motor Company. Nicknamed the "Baby Austin", it was one of the most popular cars ever produced for the British market, and sold well abroad. It wiped out most other British small cars and cyclecars of the early 1920s;[1] its effect on the British market was similar to that of the Model T Ford in the USA. It was also licensed and copied by companies all over the world.[2] The very first BMW car, the BMW Dixi, was a licensed Austin 7, as were the original American Austins. In France they were made and sold as Rosengarts. In Japan Nissan also used the 7 design as the basis for their original cars, although not under licence.[2]

Many Austin 7s were rebuilt as "specials" after the Second World War,[3][4][5] including the first Lotus, the Lotus Mk1, which was based on an Austin 7.

Such was the power of the Austin 7 name that the company re-used it for early versions of the A30 in 1951[6] and Mini in 1959.

History
Austin 7 Saloon 1931

Until the First World War Austin built mainly large cars, but in 1909 they sold a single-cylinder 7 hp built by Swift of Coventry called the Austin Seven.[7] After this they returned to bigger cars.

In 1920 Sir Herbert Austin commenced working on the concept of a smaller car, mainly to meet the needs of young families aspiring to own an affordable motor car. This idea was spurred on by the depression and the introduction of the Horsepower Tax in 1921. His design concept marked a departure from his company’s conservative motoring past and Austin received considerable opposition from his board of directors and creditors. Because the company was in receivership Austin decided to carry out the project himself on his own account and in 1921 hired an 18 year old draughtsman, Stanley Edge, from the Austin factory at Longbridge, Birmingham to aid in the drawing of detailed plans. This work was carried out in the billiard room of Austin’s Lickey Grange home.

Stanley Edge convinced Austin to use a small four-cylinder engine. The original side valve engine design featured a capacity of 696cc ( 55mm x 77mm ) giving a RAC rating of 7.2 hp, the cast cylinder block featured a detachable head and was mounted on an aluminium crankcase. The crankshaft used two roller bearings and was splash lubricated. Edge also carried out the design of other mechanical components such as the three speed gearbox and clutch assembly. Austin was largely responsible for styling the …

What Function Does a Cabin Air Filter Serve in My Car?

As you drive down the road and realize you are getting hot, you turn on the AC and expect to wait a few minutes for the air to get cool and make the rest of the ride comfortable. But it doesn’t get cool after a few minutes. A smack on the dashboard returns no more results and you give in and roll down the window a crack. What is wrong with the AC now when it worked just fine a week ago. Or did it?

Many air conditioning systems in cars that were built after the year 2000 have what is called a cabin air filter inside of them. The cabin air filter sits outside of the engine area and filters air that comes from the outside and in to the AC system. The air filter will get rid of a lot of pollutants getting in the cabin of the vehicle. But, imagine a filter on the outside and what else it can pick up when it drives down the road, mile after mile? Cabin air filters can easily get clogged.

A cabin air filter that hasn’t been changed recently can make the AC in the car not work or not work as efficiently. With a clogged air filter, no air can get in – it is simple as that. So when you recently tried to turn on the AC and it didn’t produce results, it might be an easy fix as to just switch out the filter.

Skipping the filter can be expensive if you don’t have the ability to do it yourself. However, it isn’t something you can go without doing, especially if you have discovered the AC doesn’t work. Check with your mechanic or dealer and see what the cost is for a filter. They might even be able to look at it and see if that is initially the problem or if there is something else, more sinister going on with the AC system.

The cabin air filter works to keep bad air out of the cabin when it comes in for the cooling process. The air molecules it can keep out include pollen, dirt from the road, pollutants from the air, road grime, dust, dirt, leaves and anything else flying around on the road. The air filter works just like a filter does on the furnace of the home or an air purifying system. Frequent changing of the filters is best and will keep everyone inside a little bit healthier. The cleaner the air, the better it is for those with allergies or even asthma and need to have clean air in order to feel good all of the time.…