Abstract: A system and method for passive real-time order state replication and recovery. Upstream data is received from an upstream system via a reliable transport, the upstream data also received by a supported system. Downstream data is received from the supported system via the reliable transport. Data acknowledgements are received from the supported system acknowledging receipt of the upstream and downstream data. A replicated current order state of the supported system is continuously updated in real-time based on the received upstream data, downstream data and the data acknowledgements. A recovery request is received after the supported system has experienced an outage. The current order state is restored to the supported system by transmitting a recovery message to the supported system containing the replicated current order state.

Abstract: An air intake arrangement for an air intake system for an engine includes a first pre-cleaner arrangement having a housing with an air flow inlet to receive air to be pre-cleaned. A pre-cleaner region is constructed and arranged to remove at least some particulate from the inlet air. The first pre-cleaner arrangement further includes a vacuum flow path and a drop tube flow path. The vacuum flow path is in air flow communication with a first vacuum source to selectively put a vacuum draw through the pre-cleaner region. The drop tube flow path is in air flow communication with a drop tube to eject particulate removed from the inlet air by the pre-cleaner region.

Abstract: A system and method for passive real-time order state replication and recovery. Upstream data is received from an upstream system via a reliable transport, the upstream data also received by a supported system. Downstream data is received from the supported system via the reliable transport. Data acknowledgements are received from the supported system acknowledging receipt of the upstream and downstream data. A replicated current order state of the supported system is continuously updated in real-time based on the received upstream data, downstream data and the data acknowledgements. A recovery request is received after the supported system has experienced an outage. The current order state is restored to the supported system by transmitting a recovery message to the supported system containing the replicated current order state.