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how does cat acert technology work

by Lamont Lockman Published 3 years ago Updated 2 years ago

Probably the boldest ACERT innovation is variable intake-valve actuation, and its electronic controls. Cat employs a solenoid adapted from HEUI which allows the on-board computer to work with the camshaft. Refinements to MEUI enable it to inject varying amounts of fuel several times during each compression stroke.

Part of a video titled Caterpillar ACERT Technology - YouTube
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And electronic control module monitors engine operating conditions then sends out signals to theMoreAnd electronic control module monitors engine operating conditions then sends out signals to the variable valve actuators that are converted into mechanical responses.

Full Answer

What is an ACERT engine?

ACERT is an assemblage of reasonably familiar componentry that might appear unspectacular compared to the attention this technology has garnered. The C7 and C9 ACERT engines retain hydraulically actuated electronic unit injectors (HEUI), used on Cat mid-range engines since 1997.

What does ACERT mean on a Caterpillar C7?

And Cat's other mid-range ACERT offering, the C7 that replaces the on-road 3126E, was certified this spring. ACERT is Caterpillar's acronym for Advanced Combustion Emissions Reduction Technology—an impressive-sounding name with a price tag estimated at well over $500 million.

What are some of the ACERT innovations?

Probably the boldest ACERT innovation is variable intake-valve actuation, and its electronic controls. Cat employs a solenoid adapted from HEUI which allows the on-board computer to work with the camshaft. Refinements to MEUI enable it to inject varying amounts of fuel several times during each compression stroke.

What does ACERT stand for?

ACERT is Caterpillar's acronym for Advanced Combustion Emissions Reduction Technology—an impressive-sounding name with a price tag estimated at well over $500 million. "It has been the most expensive, largest development program Cat has undertaken," says Jim Parker, vice president of Cat's engine marketing division.

What is an Acert CAT?

ACERT is Caterpillar's acronym for Advanced Combustion Emissions Reduction Technology—an impressive-sounding name with a price tag estimated at well over $500 million. "It has been the most expensive, largest development program Cat has undertaken," says Jim Parker, vice president of Cat's engine marketing division.

What does Acert mean on a CAT engine?

Advanced Combustion Emission ReductionCaterpillar Inc. announced it received certification by the US Environmental Protection Agency (EPA) for its first engine equipped with the Advanced Combustion Emission Reduction (ACERT) technology.

Is the CAT C15 Acert a good engine?

If tuned correctly, the C15 ACERT can be a strong, reliable engine. There are some problems with earlier models however, which we'll go over. At the beginning of production a common issue was broken rocker studs. This shouldn't be a problem anymore, because by now most ACERTs have updated studs.

Does a CAT Acert have an EGR?

In contrast to 2002/2004 engines from other manufacturers, the ACERT technology did not utilize cooled EGR for NOx control. Instead, it relied on an advanced proprietary combination of in-cylinder NOx control techniques, possibly including elements of partial HCCI combustion and internal EGR.

What year did Cat Acert come out?

ACERT Technology is an emissions management technology that was introduced in 2003 and incorporates four basic systems; air management, precision combustion, advanced electronics and effective after-treatment.

Which Cat engine is the best?

1693 Cat – This is one of the best Cat truck engines. A bit lud, but reliable and lots of power. 380 Cat – This Cat diesel engine was strong, reliable, powerful and got decent fuel mileage. 3408 Cat – This Class 8 truck engine was strong, was about 450 HP but truly put out around 550 HP.

How many miles can a C15 CAT last?

In order to stay on top of new emissions technology, we looked toward an engine that is very clean, yet still can be expected to last 1,000,000 miles-the Caterpillar C15.

How much boost does a C15 make?

Think about this: a good-running single-turbo 3406-E or C-15 single-turbo engine producing 550 hp requires 32 psi of turbo boost and the Acert 475 produces 38 psi of boost, while the 625 Acert is as high as 60 psi of boost.

How much does a C15 Acert weight?

3673 lbs.4) Size & Weight The C18 engine is 55.7 inches long, 38.3 inches wide, and 49.5 inches high, with a weight of 3688 lbs on its own. The C15 is has nearly identical dimensions and and weighs in at 3673 lbs.

What is a Cat C15 Acert?

About the Cat C15 ACERT™ This is an ideal engine for land mechanical drilling applications such as mud pump drives. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat C15 ACERT™ Industrial Diesel Engine.

What EGR delete?

An EGR delete kit is an aftermarket performance part that removes the EGR valve and prevents exhaust from being redirected back to the engine. Ultimately, this allows your vehicle to function as if it never had an EGR valve. There are a number of key differences you'll notice after having an EGR delete kit installed.

What does ACERT stand for in Caterpillar?

ACERT is Caterpillar's acronym for Advanced Combustion Emissions Reduction Technology —an impressive-sounding name with a price tag estimated at well over $500 million. "It has been the most expensive, largest development program Cat has undertaken," says Jim Parker, vice president of Cat's engine marketing division.

What is ACERT on a C7?

ACERT on the C7 and C9 works with a single turbocharger and HEUI fuel injection. The C11, C13 and C15 get dual turbos and MEUI fuel injection. An exhaust catalyst is used with all engines. C7.

Does Cat muffler have moving parts?

Cat says the stainless-steel, muffler-type component has no moving parts, that it requires no service, and expects it to last as long as the engine.

truckman29801 Medium Load Member

what is an ACERT Cat? are they good engines? I don't want or have one but im curious of whats the difference between a normal CAT and an ACERT is

Gear head Medium Load Member

acert is advanced emmisions reduction technoligy. It means that they have intake valve actuators that open the valves under pulls to help clean up exhaust output. They are good engines the only problem is the intake valve actuators go up sometimes but they are easy to change.

gunner76 Medium Load Member

I've been running one for almost 200k and it's been ok. The only emission related problems I've had has been a sensor that's went bad three times, but it is a five minute job to replace it so it's not too bad.

IH Branded Medium Load Member

I can't believe there is not much activity here. When I saw this I thought "that's like asking is Protestant or Catholic any good" on here.

truckman29801 Medium Load Member

Oh your the guy trading his gold for iron. Lol i wouldnt sell my pete.

When did the NCLEX begin using computer adaptive testing?

April 1, 1994. Before that date, the NCLEX was your typical paper-and-pencil exam and was only administered twice a year due to the logistics of administration (i.e. ordering testing materials, hiring proctors, shipping test booklets to be graded, etc.)

What is the difference between a computer adaptive test and a paper-and-pencil test?

The obvious difference is one is taken on a computer and the other isn’t. (Care to take a guess which one is the computer exam?)

How Does CAT work?

Computer adaptive testing works by measuring your competency with each question asked.

How Does the Computer Determine Passing or Failing?

Whether you pass or fail the NCLEX is determined by one of the following three rules:

How much time and how many items?

For both the NCLEX-RN and the NCLEX-PN the maximum amount of time is five hours, the minimum number of items is 75, and the maximum number of items is 145.

What engine does Caterpillar use?

Caterpillar advertised its C15 engine with ACERT technology for 2007 at an industry trade show. Caterpillar is again facing legal action as a result of the ACERT engine technology it used to meet EPA's 2007 emissions regulations.

Does caterpillar have pending litigation?

A spokesman for Caterpillar told Law360.com that the company does not discuss pending litigation. It's not the first legal challenge Caterpillar has faced over its ACERT technology.

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