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MANN+HUMMEL Develops New Flexible Air Filters For Tight Engine Compartments
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By APF
Air filters, cabin air filters, oil filters and (sometimes) fuel and transmission filters are important maintenance parts that typically are replaced according to a time and/or mileage schedule. A vehicle’s service schedule recommendations can be found in the owner’s manual or in a separate brochure. Unfortunately, many motorists never read – or totally ignore – the recommendations.
Factory service schedules are designed to prolong the life of the engine, transmission and cooling system, to reduce premature wear and breakdowns, but also to minimize maintenance costs while the vehicle is still under warranty. That’s why factory oil change recommendations have been stretched to 7,500 to 10,000 miles or more on many late-model vehicles. Most late-model cars and light trucks no longer have recommended change intervals for transmission fluid and filters, or for fuel filters. These so-called “lifetime” fluids and filters are supposed to last a long time – but they won’t last forever. Experience has shown that “lifetime” filters and fluids don’t live up to the hype.
Fuel filters always should be replaced when a fuel pump is replaced (unless the filter is part of the fuel pump module assembly). Likewise, transmission filters should be replaced if a customer is changing the fluid in their transmission.
Last Line of Defense Against Contaminants
Filters are the first line of defense against contaminants. Air filters keep dirt and abrasive particles out of the engine. A good-quality air filter will trap about 98 percent or more of the particles that can cause trouble inside an engine. As the filter media becomes saturated with dirt, it’s efficiency actually increases. But, as the filter becomes clogged with more and more dirt, it also becomes more restrictive to airflow. The greater the pressure drop across the filter, the more it hurts performance and fuel economy.
Ideally, an air filter will be replaced before it causes a restriction in airflow. Whether or not an air filter goes 30,000 miles or 50,000 miles before it needs to be replaced depends on driving conditions and how much dirt the filter has ingested over those miles. Driving on dusty rural gravel roads is a lot different than suburban or city driving. Air filters need to be inspected regularly and changed more on an “as needed” basis than the mileage on the odometer.
The same advice goes for cabin air filters, which typically need to be replaced every couple of years. Carbon-impregnated “odor” filters are only good for about a year before they lose their ability to absorb odors. Cabin air filters are an often overlooked maintenance item because many motorists are unaware their vehicle has one, or how often it should be changed. The filters usually are located behind the glovebox or under a panel in the cowl area of the windshield.
With oil filters, the situation is a little different. An oil filter traps dirt and metallic wear particles in the crankcase to protect the bearings, rings, camshaft and valvetrain components. The life of the oil filter depends on how rapidly contaminants are generated inside the engine. If the air filter is doing its job and prevents dirt from being sucked into the engine, and the rings and cylinders are in good condition and holding a tight combustion seal, and the oil is doing its job of minimizing wear, an oil filter easily should last until the next oil change is needed.
Oil filters have a built-in bypass valve so if they do become clogged and the pressure differential becomes too great, the bypass valve will open, allowing the engine to maintain normal oil pressure. The only problem is that the oil will be unfiltered, which means the bearings, cam and valvetrain have no protection against abrasive wear particles. The small size and limited dirt-holding capacity of many late-model oil filters means regular changes are a must.
Source: http://www.counterman.com/coolant-sealers-can-help-vehicle-owners-save-money/
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By Muytech
MUY Technology is specialized in pressure and temperature sensor manufacturing.
We provides kinds of auto parts, truck parts, heavy duty machinery parts to meet your demand and just contact us with your OE number to check the status. We can also customize as per your request.
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By ZHANG LEI
ONETEST-106AQL air quality monitoring system is to detect the concentration of CO, NO, NO2, O3 and other pollutant gases in the air and the concentration of dust PM2.5, PM10, and cooperate with the monitoring of five meteorological parameters to monitor the air quality and the source of pollution at the same time. Follow it up. To achieve the purpose of real-time monitoring, early warning, and pollution source tracking.https://onetest-meter.com/products/onetest-106aql-air-quality-detectorair-quality-monitoring-system-for-outdoor-ambient-air-assessment-and-early-warning-98
https://onetest-meter.com/products/onetest-106aql-air-quality-detectorair-quality-monitoring-system-for-outdoor-ambient-air-assessment-and-early-warning-98
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By Eliauk
1.Difference between diesel powered refrigeration unit and engine driven refrigeration unit
Diesel powered refrigeration unit: Independent and non-independent refrigeration units are divided according to power source. Independent refrigeration unit (Diesel powered refrigeration unit) means that the refrigeration unit has a separate power source and the unit itself has an independent power source.
Generally speaking, diesel powered reefer unit is integrated structures, but there are also modified split structures (this structure is generally hoisted on the beam of the reefer truck). This type of unit itself has an engine and a generator that provide power and electricity to the refrigeration system Device. It can work independently without being restricted by the working state of the truck engine.
Non-independent refrigeration unit (Engine driven refrigeration unit😞 As the name implies, it is a refrigeration unit that cannot work independently. This type of unit has no power unit and must rely on the truck engine to drive the compressor to work.
The engine driven refrigeration unit can also be divided into an integral structure and a split structure from the structure. The split structure also includes three types of condenser front type, condenser top-mounted type and condenser bottom-mounted type (bottom-mounted or concealed); but the condenser front-mounted structure is the most common structure in split non-independent refrigeration units.
2.Advantages and disadvantages of diesel engine refrigeration unit and engine driven refrigeration units
Independent refrigeration unit
Advantages: The advantage of diesel engine refrigeration unit is stability and reliability, which is also the most needed for refrigerated trucks. Since the diesel engine refrigeration unit has a separate source of power output, the refrigerator can still work when the refrigerated vehicle is turned off or the refrigerated vehicle has an engine failure, so as to ensure that the goods in the refrigerated vehicle will not deteriorate.
Integrated independent refrigeration unit
Disadvantages: The disadvantage of independent refrigeration units is that they are expensive and maintenance is more complicated than non-independent refrigeration units. Due to the addition of a set of power systems, independent refrigeration units are more complicated than non-independent refrigeration units in terms of maintenance, and independent refrigeration units are relatively more technically complex and more expensive.
Non-independent refrigeration unit
Advantages: The advantages of non-independent refrigeration units are low price, simple structure and easy maintenance.
Disadvantages: The disadvantage of the non-independent refrigeration unit is that it relies too much on the power source of the refrigerated vehicle. When the refrigerated vehicle engine stops working, the non-independent refrigeration unit loses power support and the refrigeration system stops working. If the door is frequently opened when the vehicle is turned off, the large loss of cold air in the refrigerated box causes the temperature in the box to rise, or the refrigerator will stop cooling when the vehicle fails (engine failure), and the cargo in the vehicle is easily lost.
3.Choice of independent refrigeration unit and non-independent refrigeration unit
From the price point of view: If your budget is relatively sufficient and have strict temperature requirements (the required temperature should be at least minus 10 degrees below) ) It is recommended to use a diesel powered refrigeration unit.
In terms of the length of transportation distance: For short-distance distribution within the city or between districts and counties, it is recommended to use non-independent units, which not only lower the procurement cost, but also easy to repair even if there is a failure; For long-distance transportation, it is recommended to use independent refrigeration units, because Even if the vehicle engine stops working during long-distance transportation, the refrigerator can still cool normally to ensure the safety of the transported items.
In terms of vehicle models: Generally speaking, light trucks with a body less than 7 meters are recommended to use non-independent units. For trucks and semi-trailers above 7 meters, independent refrigeration units are better.
If you have any questions, please feel free to contact us. [email protected]
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By sneedspeed
At Sneed4Speed, get the best deals on Mini Cooper Replacement Engine and other parts with an affordable price. At Sneed4Speed all engines are properly checked, cleaned and hand assembled by one of our master race engine builders. All engines come with a 1 year warranty against manufacturer defects.
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