gf1430p402802f

Air shutoff valve function

ประเภท gf · หัวข้อ 14.30 · เวอร์ชัน 0113 · 2004-02-10

ใช้กับ: ENGINE 104.941 /942 /943 /944 /991 /994 as of 1.8.96 ENGINE 104.941 /942 /991 /992 /994 with CODE (494a) USA-Ausführung ENGINE 104.995 with CODE (494a) USA-Ausführung with CODE (498) as of Model Year 97 Japan-Ausführung with CODE (807) Model year 1997 with CODE (808) Model year 1998 ENGINE 111.961 with CODE (494a) USA-Ausführung ENGINE 111.973 /975 with CODE (494a) USA-Ausführung with CODE (923a) low emission D3 ENGINE 111.974 with CODE (494a) USA-Ausführung with CODE (807) Model year 1997 wi

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ตำแหน่ง

กลุ่มฟังก์ชัน 1 Engine › 14 Exhaust manifold, engine brake, emission control system › 14.30 Secondary air injection

EinPAS 15 Engine › 15.40 Exhaust system/exhaust aftertreatment › 15.40.13 Line/hose/valve

ใช้กับเครื่องยนต์/เกียร์ด้วย: 104 941, 104 942, 104 943, 104 944, 104 991, 104 992, 104 994, 104 995, 111 951, 111 952, 111 955, 111 956, 111 957, 111 958, 111 961, 111 973, 111 974, 111 975, 111 982, 111 983, 112 91*, 112 910, 112 911, 112 912, 112 913, 112 914, 112 916, 112 917, 112 92*, 112 920, 112 921, 112 922, 112 923, 112 94*, 112 940, 112 941, 112 942, 112 943, 112 944, 112 946, 112 947, 112 949, 112 95*, 112 953, 112 954, 112 955, 112 960, 112 961, 112 97*, 112 970, 112 972, 112 973, 112 975, 113 94*, 113 940, 113 941, 113 942, 113 943, 113 948, 113 96*, 113 960, 113 961, 113 963, 113 965, 113 966, 113 967, 113 968, 113 969, 113 97*, 113 98*, 119 980, 119 981, 119 982, 119 985, 120 982, 120 983, 137 970

GF14.30-P-4028-02F

Air shutoff valve function

Air shutoff valve function

P14.30-2007-81

Illustration shows air shutoff valve with integrated check valve

126 Air shutoff valve

126 A Vacuum diaphragm

126B Check valve

A to air pump switchover valve

B Injected air from air pump

c Injected air to cylinder head

The aspirator shutoff valve (126) is opened via the air pump switchover valve through vacuum or closed through ventilation. The injected air of the air pump can flow through if the aspirator shutoff valve is actuated.

The check valve (126b) prevents when air injection is deactivated the flowing in of exhaust to the vacuum diaphragm (126a) and therefore protects it against thermal destruction and contamination.