firing pressure

[′fīr·iŋ ‚presh·ər]

(mechanical engineering)

The highest pressure in an engine cylinder during combustion.

References in periodicals archive ?

The authors started from the observation that by increasing the fuel injection pressure it is possible to increase the engine power density while maintaining the engine peak firing pressure (pfp) constant.

The Key Role of Advanced, Flexible Fuel Injection Systems to Match the Future C[O.sub.2] Targets in an Ultra-Light Mid-Size Diesel Engine

Peak Firing Pressure (PFP) prediction of the model was well aligned with the test data at entire engine operating range.

Exhaust Manifold Thermal Assessment with Ambient Heat Transfer Coefficient Optimization

If it won't work right on the bench with dummy rounds, adding 45,000 psi of firing pressure to the equation is not going to make things work better.

Build your own Bren gun! In the five previous installments (7/20, 8/20, 9/20, 10/20, 11/20), Matthews did some labor and machine-intensive work that will challenge any home gunsmith. This time he gets to the payoff

"The firing pressure in the combustion chamber causes the rings to load from the back side pushing out against the cylinder wall.

Flexible cylinder honing-taking on the big bores: finishing looks at a deburring technique from the US which has proven to be extremely successful on diesel engines

"The firing pressure in the combustion chamber causes the rings to load from the back side, pushing out against the cylinder wall.

Cylinder honing for performance

Increased firing pressure might have been one of the factors contributing to the accounting shenanigans of the late 1990s.

Corporate Governance

A thorough comparison has been initially carried out between the SP and the MP mode using the experimental readings from the steady engine map (Figure 2) in terms of torque, the average peak firing pressure (PFP), brake specific fuel consumption (bsfc) as well as turbine inlet temperature.

Investigation into the Potentials of a Dedicated Multi-Point Injection System for a Production NG Single-Point Heavy-Duty Engine

Other significant improvements included lowering of the turbo speed by 400 rpm (resulting in longer turbo life cycles) and a drop in peak cylinder firing pressure by as much as 90 psi (for longer power pack life).

Fuel injectors still progressing in solving emissions problems

Eventually, even the peak firing pressure (pfp) was constrained to a relatively 'common' value of 200bar on recent engines, in order to avoid compromising too much the engine design for keeping the mechanical efficiency at part load on a high level [6].

Functional Requirements to Exceed the 100 kW/l Milestone for High Power Density Automotive Diesel Engines

"It used to be that the peak firing pressure on a diesel was 150 bar, and it's now 175 bar," he says.

Conventional engines: not dead yet; Fuel cells and hydrogen may get all of the headlines, but gas and diesel internal combustion engines have a lot left to offer

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