Pump transmission with PTO gear and independently clutched impeller

摘要

A firefighting pump transmission for use with an emergency vehicle pump comprising a housing receiving a drive shaft, the drive shaft having a PTO gear affixed thereto within the housing, an impeller shaft for turning an impeller of a pump, and means for selectively powering the impeller shaft from the drive shaft, the means for powering may include a multi-disk clutch. The transmission allows for powering the PTO gear while the impeller shaft is idle. A Commercially Available PTO device may be mounted to the housing to power a variety of devices.

主权项

1. A transmission comprising:
a housing having a port, said housing configured to receive a PTO device having a driven gear which extends through said port; an exit shaft extending from said housing; a PTO driving gear affixed to an input drive shaft, said input drive shaft extending into said housing, said PTO driving gear affixed to said input drive shaft within said housing and configured to be driven by said input drive shaft and configured to drive a PTO device connected to said housing where the PTO device has a driven gear which extends through said port, said PTO driving gear positioned such that no portion of said PTO driving gear protrudes from said port, at least a portion of said input drive shaft positioned external said housing, said at least a portion configured to axially connect to, and receive power from, an external transmission; a clutch driving gear affixed to said input drive shaft; and a clutch configured to power said exit shaft from said input drive shaft.