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Methods and apparatus for reducing the velocity of a rider in or on an open cockpit vehicle when the rider is thrown from the vehicle.
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| Number | Title | Issue Date |
| 8141355 | Hydraulic system for an automatic transmission A hydraulic system for an automatic transmission operatively connected to an internal combustion engine that is operable in a start-stop mode. The hydraulic system includes a hydraulic energy source to supply the hydraulic system with hydraulic energy, the hydraulic... | 03/27/2012 |
| 8051652 | Hydraulic system and automatic gearbox A hydraulic system including a multi-flow hydraulic pressure supply unit, especially a dual-flow hydraulic pressure supply unit, such as a pump, by which a volumetric flow of pressurized fluid is supplied to a hydraulic-fluid-operated device. A valve arrangement is ... | 11/08/2011 |
| 7997074 | Hydraulic station and method for controlling pressure in a hydraulic system of a wind turbine A hydraulic station in a hydraulic system of a wind turbine includes a tank for storing working fluid, first and second pumps fluidly connected to the tank, first and second flow paths extending from the respective first and second pumps to a hydraulic circuit, and ... | 08/16/2011 |
| 7665299 | Hydraulic power management system A machine having a hydraulic power management system. The machine includes an internal combustion engine driving first and second fixed displacement pumps to produce a combined flow of pressurized fluid. Main and auxiliary implements are operable in response to a fl... | 02/23/2010 |
| 7506506 | Multi-purpose hydraulic system A hydraulic system comprising: a first pump, in fluid communication with a first valve; a second pump, in fluid communication with a second valve; an auxiliary passage, in fluid communication with the first valve and the second valve; and a supplemental apparatus, i... | 03/24/2009 |
| 7415820 | Hybrid powertrain with valve assembly for dual pumps A powertrain includes a first pump and a second pump. A conduit defines a passageway for providing hydraulic pressure from the first pump or the second pump to a transmission. A valve assembly is configured to selectively supply hydraulic pressure to the passageway ... | 08/26/2008 |
| 7401465 | Dual pump dual pressure hydraulic circuit A hydraulic system is provided for an engine driven vehicle. The hydraulic system includes a higher pressure engine driven pump for supplying pressurized fluid to a higher pressure circuit via a first supply line. The system also includes a lower pressure engine dri... | 07/22/2008 |
| 7389640 | Hydraulic system and automatic transmission A hydraulic system including a multi-flow hydraulic pressure supply unit, especially a dual-flow hydraulic pressure supply unit, such as a pump, by which a volumetric flow of pressurized fluid is supplied to a hydraulic-fluid-operated device. A valve arrangement is ... | 06/24/2008 |
| 7281373 | Fluid pump control device for wheel loaders A fluid pump control device for wheel loaders includes an engine for driving an axle through a transmission, a main pump, a variable-displacement steering pump with a pump regulator, an auxiliary pump, an electronic proportional control valve provided on a discharge... | 10/16/2007 |
| 7278508 | Control system of industrial truck and controlling method of the same A control system of an industrial truck includes a first switch, a second switch and a hydraulic circuit. The first switch detects whether an operator sits on a seat, and carries out a first operation based on the result. The second switch detects whether a device f... | 10/09/2007 |
| 7275369 | Hydraulic control device for controlling a boom-swing frame combined motion in an excavator A hydraulic control device includes first and second pumps, a swing control spool, a boom first-speed control spool, a boom second-speed control spool, a swing motor, a boom cylinder, a pilot control valve, and a confluence line for merging the hydraulic flow from t... | 10/02/2007 |
| 7251934 | Work vehicle hydraulic system A hybrid hydraulic system for a work vehicle is provided that includes a first fixed displacement hydraulic pump whose outlet is connected to a priority valve. The priority valve, in turn, directs the pump's flow to a first group of closed center backhoe valves on a... | 08/07/2007 |
| 7243755 | Drive mechanism for a mobile vehicle A drive mechanism for a mobile vehicle has one first hydraulic motor (9) and one second hydraulic motor (10) which are in permanent operative connection via a summarizing transmission (12, 14) and drive one output shaft (17). In order to ... | 07/17/2007 |
| 7231764 | Exchange and/or scavenging device for a circuit comprising at least one hydraulic motor The device comprises a replenishing valve (24) having an opening control chamber suitable for being connected to a main duct (12, 14) of the circuit, and a closing control chamber, the pressure in said chambers making it possible to cause the moving me... | 06/19/2007 |
| 7225894 | Power steering apparatus An engine driven pump 24 is connected with a power steering motor assembly 18. An electric motor 36 drives a pump 34 connected with the power steering motor assembly 18. A control apparatus 38, 44, 52, 62 and 72 effec... | 06/05/2007 |
| 7213672 | Vehicle hydrostatic transmission circuit A hydrostatic transmission circuit for a vehicle having at least two displacement members (12) driven by at least one hydraulic motor (10) having a feed main duct and a discharge main duct (16, 18). Skid control means for controlling skidding of... | 05/08/2007 |
| 7204186 | Fluid circuit for feeding primary and auxiliary users with preset priorities Fluid-dynamic circuit for supplying primary and auxiliary uses with preset priorities comprises a pressurised fluid source, at least one first use with primary priority, at least one second use with secondary priority, at least one third use with low priority; said ... | 04/17/2007 |
| 7178333 | Hydraulic control system for hydraulic excavator A hydraulic control system for a hydraulic excavator of the present invention comprises a boom control valve in a first oil path for providing pressure oil from a first hydraulic pump with a boom cylinder according to operation of a boom operating means, an arm cont... | 02/20/2007 |
| 7168245 | Work machine with supplemental power steering A steering system for a work machine having a hydrostatic transmission is disclosed. The steering system has a primary source of pressurized fluid and a steering control valve. The steering system also has a first fluid passageway fluidly connecting the primary sour... | 01/30/2007 |
| 7165396 | Pump control override for tandem pumps A tandem pump assembly of the type including a housing (H), disposed in which is a first pump (11), driven by an input shaft (19), and a second pump (33), also driven by the input shaft (19). The assembly is characterized by the tandem pu... | 01/23/2007 |
| 7104053 | Control method A hybrid actuation system comprises first and second actuator arrangements (10, 12) arranged to apply first and second output loads respectively to a common element (14). A control method for controlling the operation of the hybrid actuation system inc... | 09/12/2006 |
| 7100723 | Multiple pressure mode operation for hydraulic hybrid vehicle powertrain A system for a hydraulically driven vehicle includes a pump producing fluid flow at an outlet, pump-motors having variable flow rates for driving the wheels, a hydraulic rail having a pressure and connecting the pump and the pump-motors, sensors producing signals re... | 09/05/2006 |
| 7077234 | Rack and pinion steering assembly A rack-and-pinion assembly comprises a housing, a rotatable pinion gear including a plurality of teeth, and at least one moveable mount for providing a moveable attachment of the housing to the vehicle. A rack is slidably positioned within the housing and includes a... | 07/18/2006 |
| 7069722 | Hydraulic system for a vehicle, a vehicle including such a hydraulic system and a suplementary unit for such a vehicle A hydraulic system for a vehicle has a hydraulic, load carrying assembly which has a movable structural element and a hydraulic device for actuating the structural element. The hydraulic system has a primary circuit having a servo device, a stationary hydraulic pump... | 07/04/2006 |
| 6966398 | Apparatus for controlling a power-assisted steering gear in response to vehicle speed An apparatus (10) for helping to turn steerable wheels (12) of a vehicle comprises a hydraulic power-assisted steering gear (16). An electric motor (92) actuates the steering gear (16). A pump (84) supplies the steering gear... | 11/22/2005 |
| 6959545 | Engine control based on flow rate and pressure for hydraulic hybrid vehicle A system for a hydraulically driven vehicle includes an engine having multiple, selectively operating cylinder-pump banks producing fluid flow at an outlet, a pump/motor having a variable flow rate including an inlet for driving the wheels, a hydraulic line having a... | 11/01/2005 |
| 6932583 | Multiple stage pump with multiple external control valves A multiple stage pump having valves downstream from each respective pump in a same line thereof. The respective lines then merge into a common line. The multiple stage pump prevents pressure variations. The multiple stage pump includes a first pump in a first stage ... | 08/23/2005 |
| 6907728 | Load sensing hydraulic system A load sensing hydraulic system includes two pumps, at least one hydraulic fluid consumer, and a pressure balance circuit. In the case of no demand from the consumer, hydraulic fluid flows from the pumps through the pressure balance circuit and to tank. In the case ... | 06/21/2005 |
| 6901754 | Power conserving hydraulic pump bypass compensator circuit In a hydraulic system that has first and second pumps, a pressure compensation circuit is provided to unload the output of the second pump when its operation is not required. The unloading reduces the power demanded of the engine that drives the pumps thus conservin... | 06/07/2005 |
| 6823669 | Transfer valve system A hydraulic transfer valve system has a main valve selectively placing one of a primary and secondary hydraulic system in communication with a hydraulic load. A pilot valve provides a toggling action between the primary and secondary systems with respect to pressure... | 11/30/2004 |
| 6810663 | Fluid pressure circuit control system Hydraulic oil supplied from pumps (12),(13) to an attachment actuator (60) is controlled by attachment control valves (27),(28). Hydraulic oil supplied from pumps (12),(13) to other actuators (52),(54),(... | 11/02/2004 |
| 6708490 | Hydraulic system for construction machine According to the invention, traveling bypass cut-off valves are disposed in center bypass passages respectively which are located between traveling direction control valves and working direction control valves disposed downstream of the valves, wherein, when at leas... | 03/23/2004 |
| 6619037 | Hydraulic driving device of civil engineering and construction machinery Provided are hydraulic pumps 1,2, a control valve group 15a connected to the pump 1 and including a bypass on/off valve 7, a control valve group 15b connected to the pump 2 and including a reserve-actuator-controlling, directional control valve 11, a comm... | 09/16/2003 |
| 6594992 | Punch press hydraulic servo device using a rotary valve In a rotary servo valve (1) provided with at least two kinds of pump port (33, 39) for high and low pressures, a spool (11) that is free to rotate and free to reciprocate linearly is installed into a spool guide hole (7) of the valve main body (9), a serv... | 07/22/2003 |
| 6460655 | Vehicle hydraulic system A hydraulic system is provided for a vehicle having front, middle and rear portions. The hydraulic system includes a main pump located in the front portion, and a secondary pump located in the front portion which supplies fluid to an inlet of the main pum... | 10/08/2002 |
| 6357231 | Hydraulic pump circuit for mini excavators An off road machine is provided with a hydraulic system for operating drive motors for propelling the machine, as well as operating actuators for machine functions. The hydraulic system utilizes three pumps, with the pumps connected to a single high press... | 03/19/2002 |
| 6321152 | System and method for inhibiting saturation of a hydraulic valve assembly A control system and method for detecting and inhibiting an impending full saturation condition in a hydraulic system of a work machine wherein the hydraulic system includes a hydraulic pump for supplying fluid under pressure to the hydraulic system and a... | 11/20/2001 |
| 6250894 | Load sharing valve and system for operating centrifugal pumps in parallel A system allows pumps to run in parallel and preventing back flow through a non-operational pump. The system includes a first pump in parallel with a second pump. The system further includes a check valve in fluid communication with the first pump for pre... | 06/26/2001 |
| 6244048 | Hydraulique drive device A hydraulic drive system for a supersized hydraulic working machine such as a hydraulic excavator includes hydraulic pumps connected to main lines through a delivery line and a supply line. Branch portions from the main line include flow control valves fo... | 06/12/2001 |
| 6170261 | Hydraulic fluid supply system A pressurized hydraulic fluid supply apparatus capable of merging or separating a plurality of hydraulic pump lines according to the driving states of a plurality of actuators. The pressurized hydraulic fluid supply apparatus has a merge/separation valve ... | 01/09/2001 |
