[9.] Shen, H., Shamim, T., and Sengupta, S., "An Investigation of Catalytic Converter Performances during Cold Starts
," SAE Technical Paper 1999-01-3473.
For the purpose of improving the diesel engine cold start
performance, the heat assistance devices, mainly glow plug, are widely used.
These statistical data provide important information for quantification of cold start
emissions as described in Section 3.2.
It provides up to 15 W of output power, runs at up to 9 mils boost current for quick warm-up in cold starts
, and performs over an operating temperature range of -30[degrees] to +85[degrees]C.
The level of carbon monoxide was also elevated, probably due to the colder weather, with more domestic heating appliances being used and vehicle cold starts
becoming more prevalent.
On future cold starts
, the engine pulls its fuel only from this reservoir of easy-to-evaporate components.
Disappointed Forest boss David Platt said: "I just can't put my finger on why we are having cold starts
. In the first half Bolton were all over us but all credit to my players they came back strongly in the second half and I thought we deserved a point."
The focus of current catalyst research, therefore, is to improve exhaust gas treatment during cold starts
by developing new hydrocarbon-oxidation technology.
A primer affords several advantages, but the one most apparent to the operator is the easy cold starts
It has a special mounting method to protect the cylinder seals from the head's heat, as well as a new hydraulic safety function to prevent damage to the flexible die ring on accidental cold starts
and a proportional push-out mechanism to improve machine efficiency.
One of the concerns with cold starts
is that because combustion isn't as efficient as it is when the engine is hot, there are greater emissions.
Leakage in a hot-runner system or manifold due to cold starts
or manifold system wear reportedly can be eliminated with Magna Spring, a new spring assembly from Polymer Cleaning Technology Inc., Hillsborough, N.J.