0000002187 00000 n Often, the same basic engine will produce greater power when a fuel injection system is fitted instead of a carburetor. Fuel injection systems are more complicated than carburetors, and they can be expensive to maintain, replace or overhaul. 0000047009 00000 n Blocked injector(s), possibly due to contaminated fuel. All rights reserved.

© Belvoir Media Group, LLC. Meanwhile, take the same basic engine and replace the carb with a fuel injection system. ���R����2�Q���'�"����G]����*}B��`Z�p�r@��]��M����N�F]�\ߌ��+�Ƥb$C���Y*���+�3�kK�Sc�� Ws� m����J�um�a��h���׭�5��~���t0���-q]i�?y�y:�y$&��H���q|���, ��/�:F���b�����Yt&�a}RŃq�jV��"�-��,�:h�Ա�E\8|�v��zg��f���Yz�ՙ)���жX��S���Vkb�j l�T�3�ȏZ#m�^p�B/����1}ZS�����M�+\��Y��i:;1��͘��Rr�u��z�J!�K��A�!��UH�Luި�k�ۣ���CQ��Z�٥��Z=|�{W{�F�Sq�j�ګ61�U؞�6 ۛ64�7m� �M�͔̽i������1�.�)����WЯ$�v�3�Ȟ`�2��c{'ԉ�޶0�Ã�:b̋r��1�b��������w@�l]w�� ~�ʎ�G�y��ZrX���`���ӡV�p-�F�U\���ֳ�(�'ϊ3���u@�C���~"��“0��?vf���wVz�����ԁY�-N��D3�����8�r �z$��Pm��Rϴ�+w?k�����v��aQ���A�"�!݌h ^�j��@���� 0000006288 00000 n 0000002457 00000 n 7C�z����R��CeGf>v�;u�\�� |�>����t ��#. If you are talking about icing in the tank, true. I remember reading a report in GASIL many years ago about a partial engine failure in a fuel injected helicopter. The induction system mixes air and fuel to form a mixture in the engine where combustion can occur.

Some engines may benefit from installing balanced fuel injectors, which compensate for differences in airflow to the various cylinders.

G�F'�x������n�}����1� �;���˖JV8m��b�Tdv0R��"�2Ln�rӱ��d��MKDH(UF��Br[�ܢ�;?�0��sSz��iO��'�/�jX裞{��E���M�,�Oz���Z����Υ?7����UH��Ne����T�he�p��I����Yx4MVD�h�4��=7߬����8-6���ˢ6)7Fϱy��� Sudden, unwanted quiet has greeted pilots who forgot about or misused the carb heat control. Fuel injected engines, meanwhile, are largely immune to carb icing since there’s no carburetor (or a venturi to help atomize fuel, which is a source of the carb icing problem). Terms of Service - 0000036524 00000 n Carbs are famously prone to creating ice internally, blocking the fuel/air mixture’s flow. induction icing is a more comprehensive term which includes all types of fuel metering (fuel injection as well as carburation), ... aircraft that have fuel-injection systems. As an example, consider the Lycoming O-540 engine found in Piper Comanche 250 models. It does sound like a fuel restriction of some kind - debris in tank, blocked filter etc. 0000006266 00000 n 0000003711 00000 n

�f�MGΉڨMc�8�H׮�r��M�/�N8Me5�~Z0O�k��S2:=;s����[U�H�����$�`�:[裠̩Nk}8NϞkSs�D~��^΀���}��,N���y�����UL�~��LxΡ,����A��n���g�'}����) M۴Z�|��` ���fua�z(���vn�&�Y��_>�M8�tďogޅ��/��.���o.��D7�U�����d���{���w5k���qE�'��@���"/?_�]�#�2 _I��dV��{G�j�g8m� �ay5u���@݂��ϗ��n.�=#���-����J.�@VG0n�������� � \p�%$I��>�δ4���ơ`�4��"�I� {�a|O���J�-�f0��� Had someone put Mogas in [with 5% Ethanol] previously?
But there’s no free lunch. By logging into your account, you agree to our. 0000025712 00000 n Residual heat can build up under the cowling, vaporizing fuel in the injector lines and preventing it from reaching the cylinders in sufficient quantity to start. But it’s not as efficient as fuel injection at distributing a combustible mixture to the cylinders. Ђ��!��v�j�ZT��a�c����ы� ��nN`�ŝ�m�쵅�α&���F�]^OT{��~�;V|i3�&��A��VM\b��R��rՊ�ag����k�T�Hl+O&������x%�x��&�==�;���7��I��` f9-| endstream endobj 138 0 obj 893 endobj 139 0 obj << /Filter /FlateDecode /Length 138 0 R >> stream 0000004995 00000 n 0000011389 00000 n Advertising - I'm sorry I can't remember the details but I think it was about 1989. remains of ice could be seen in the air intake. Induction icing affecting a fuel-injected engine usually only forms when the airplane is operated in conditions conducive to airframe icing, a completely different situation. When I was training, I had a similar problem on a Tomahawk ( normal carb stuff).

Through an engine’s intake system, that combustible mixture then flows to the cylinders where, if everything is working as it should, it’s ignited by the spark plugs, burns and produces power.

0000046931 00000 n Opening the alternate air system or descending into warmer air restores power.

Fuel Injected Engines: Different Types Of Ice Hazards If you fly a fuel-injected airplane, you obviously have no risk of carburetor icing.
You have entered an incorrect email address! Before I do go back, I'll certainly be reading up on how injection systems work - my old text books just show carburettors. CFI Instrument Practical Test Standards, FAA-S-8081-9B, June 2001