1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208 
Cummins aims
Page 9
If you've noticed an error in this article please click here to report it so we can fix it.
to hit stricUS 2010 s-andard
US ENGINE manufacturer Cummins plans to demonstrate an emissions-control system for truck diesel engbes that MI meet the ultra-strict EPA 2010 on-highway exhaust standards well ahead of the deadline. And it won't rely on SCR and AdBlue.
The demo unit will be based on a nine-litre ISL straight-six equipped with Exhaust Gas Recirculation (EGR), diesel particulate filter and a nitrogen oxide (N Ox) absorber.
To comply with EPA 2010, the engine must reduce particulate matter to 0.01g/ hp-hr and NOx to 0.2g/hp-hr.
Cummins says that the project highlights one route to lower emissions but stresses that t Is considering all options, including SCR — possibly in combination with EGR.
For the EPA 2007 onhighway regs, most US engine makers including Cummins have opted for EGR combined with variable geometry turbocharging.