DonaldsonTechnology—Series 6000 Diesel Oxidation Catalyst (DOC) & Spiracle Closed Crankcase Filtration system
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
Technology specifications
Assumptions
- Baseline A: Baseline assumes an unmodified engine running on regular 2D (<500 ppm sulfur) fuel.
- Baseline B: Baseline assumes an unmodified engine running on ultra-low sulfur diesel fuel (ULSD) (<15 ppm sulfur) fuel.
Series 6000 DOC & Spiracle (closed crankcase filtration system). Baseline A.
| Engine Model/Application |
Highway, heavy-heavy and medium-heavy duty, 4 cycle, non-EGR, model year 1991 - 2003; turbocharged or naturally aspirated |
|---|---|
| Retrofit Fuel, Max Sulfur |
500 parts per million (ppm) |
| Reduction in particulate matter (PM) | 25% (reflects reductions from both tailpipe and crankcase emissions) |
| Reduction in nitrogen oxide (NOx) |
n/a |
| Reduction in hydrocarbons (HC) |
52% |
| Reduction in carbon monoxide (CO) |
13% |
Series 6000 DOC & Spiracle (closed crankcase filtration system). Baseline A.
| Engine Model/Application |
|
|---|---|
| Retrofit Fuel, Max Sulfur |
15 parts per million (ppm) |
| Reduction in particulate matter (PM) |
33% |
| Reduction in nitrogen oxide (NOx) |
n/a |
| Reduction in hydrocarbons (HC) |
26% |
| Reduction in carbon monoxide (CO) |
19% |
Series 6000 DOC & Spiracle (closed crankcase filtration system). Baseline B.
| Engine Model/Application |
|
|---|---|
| Retrofit Fuel, Max Sulfur | 15 parts per million (ppm) |
| Reduction in particulate matter (PM) |
28% |
| Reduction in nitrogen oxide (NOx) |
n/a |
| Reduction in hydrocarbons (HC) |
50% |
| Reduction in carbon monoxide (CO) |
23% |
Criteria to achieve emission reductions
The following operating criteria must be met in order for appropriately retrofitted engines to achieve the above emissions reductions:
- The engine exhaust temperature must be at least 150° C during the duty cycle.
- The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer.
- The engine must be operated with a fuel that contains a sulfur content of no more than the level indicated above.
No discernible fuel economy penalty is expected when used in a compatible application.
The following operating criteria must be met for the Spiracle Closed Crankcase Filtration System in order for appropriately retrofitted engines to achieve the above emissions reductions:
- Blow-by rates must be measured and recorded on each vehicle prior to Spiracle installation before selecting the applicable Spiracle model based on the chart provided below.
- The filtered oil from Spiracle must be returned back to the engine oil sump. There is no catch bottle to be used with the Spiracle system.
- International DT444 engines require the installation of the Spiracle Boost using venturi technology to increase the turbo intake vacuum force acting to overcome the filter restriction.
- Spiracle systems require that the filter cartridge must be changed in accordance with the maintenance schedules noted below.
| Description | Diesel Engine Application (5); | |
|---|---|---|
| Less than 400 HP (1) |
Greater than 400 HP (1) |
|
| Blow-by Flow Rate | 0-11 cfm | 9-24 cfm |
| Metal Spiracle Part Number Replacement Filter Part Number | S040004 P603746 (2) or P607673 (3) |
S040005 P603568 (2) |
| Plastic Spiracle Part Number Replacement Filter Part Number | S040020 (3), (4) P607673 (3) |
|
Notes:
- (1) HP rating is given as approximation of Spiracle sizing, but selection is based on blow-by flow rates.
- (2) Filter change interval for P603746/S040004 and P603568/S040005: Every lube oil change or 500 hours, whichever comes first.
- (3) Filter change interval for P607673/S040020 and P607673/S040004: 1000 hours or at 8” H20 if using indicator.
- (4) Filter change interval for P607673/S040020 on Navistar DT444: 1000 hours or at 1” H20 if using indicator.
- (5) Donaldson offers generic and custom installation kits. Generic kits include mounting brackets and connection fittings. Custom kits include generic components plus tubing and clamps.