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POWER TO THE PUMP.(mechanics, analysis)
The best hydraulic drive system is one that dovetails with a boat's equipment and runs quietly with minimal maintenance.
Think of all the ways hydraulics are used on a fishing boat: running winches, steering, deck cranes and haulers, to name a few. If any one of these systems goes out, the trip may be over. So obviously, fishing boats need trouble-free hydraulic systems. And since each system is like a chain, the means of driving the hydraulic pump can easily become the weakest link, if it isn't set up properly.
The source of power for most marine hydraulic pumps is the boat's main engine, an auxiliary generator engine or an electric motor. Hydraulic pumps can be driven by a shaft, with or without a clutch between the power source and the hydraulic pump, or the pump shaft can plug into a standardized Society of Automotive Engineers (SAE) pad on one of the boat's engines.
Once the name "Frigidaire" was synonymous with refrigerator. However, your fridge may be some brand other than Frigidaire and it may be powered by propane, oil or electricity. The term "power-take-off" (PTO) is a similar catch-all phrase, which describes, the place from which rotary power is taken. Under the PTO heading there are hundreds of combinations of equipment used to power hydraulic pumps.
Clutched PTOs
- Side-mounted PTOs.(FEATURE PRODUCTS)
- Magazine article from: OEM Off-Highway May 1, 2006 700+ words
...OMITTED] Chelsea Products is also developing two new rear-mounted PTOs for the Cat CX series designed to provide good clearance, reducing installation costs. These rear-mounted PTOs will feature a torque capacity capable of handling expensive...
- LITERATURE.(Brief Article)
- Magazine article from: Fleet Equipment June 1, 2001 700+ words
...frames, sheet metal hoods, brush guard and skid plates for severe service, front and rear engine-mounted PTOs, and transmission-mounted PTOs. Kenworth also provides extensive support after the sale via its dealer network of more than 295...
- Power take-off unit.(Chelsea Products)(Brief article)
- Magazine article from: LP/Gas March 1, 2006 700+ words
...options and horsepower ratings from 63.6 to 109.4. Chelsea is also developing two rear-mounted PTOs for the Cat CX series. These rear-mounted PTOs will feature a torque capacity capable of handling expensive front-mounted hydraulic applications...
- Volvo rear-mounted PTO.(Trucks & Transportation)
- Magazine article from: Equipment Today Magazine May 1, 2005 700+ words
...lbs, of torque with a drive ratio of 1:131 * Eliminates extended front frame or bumper needed to accommodate front-mounted PTOs * Allows operators to spec a longer wheelbase without exceeding bridge laws or length restrictions Indicate 19 on inquiry...
- Hydraulically actuated PTOs from twin disc.(powertrain)(power take-offs)
- Magazine article from: Diesel Progress North American Edition McNeely, Mark March 1, 2005 700+ words
Seeking to remove the mechanical linkage for engagement of its power take-offs (PTOs), Twin Disc Inc. has developed a series of self-adjusting, hydraulically actuated clutch PTOs for industrial and marine markets...
- February 2008 Moran ATB tug: Washburn & Doughty.
- Magazine article from: Workboat December 1, 2008 700+ words
...1 reductions. When firefighting, the two inboard MTUs are clutched out of the propulsion mode and clutched into front-mounted PTOs to power the fire pumps. The other two engines are used for maneuvering. Firefighting equipment features Stang Low Pro...
- Specs based on a track record: at Rinker Materials, the right trucks and...
- Magazine article from: Fleet Equipment Skydel, Seth September 1, 2003 700+ words
...are hydraulically powered and driven off an Eaton transmission mounted PTO. For its concrete mixers, Eaton front engine-mounted PTOs and hydraulic systems are in use to power McNeillus Schwing and London drums. Currently, an evaluation of a lighter weight...
- New transfer case, rear PTO from Meritor. (lubrication cases for rear-engine,...
- Magazine article from: Diesel Progress North American Edition Kondor, Chuck April 1, 1998 700+ words
...of the engine, so the overall length can be utilized to maximize the wheel base. According to Meritor, unlike front-mounted PTOs, Repto systems eliminate extended frames and bumpers which provide excellent visibility and improve vehicle maneuverability...