公开(公告)号：WO0076293A3

公开(公告)日：2001-03-15

申请号：PCT/US0016538

申请日：2000-06-14

Applicant: TEXTRON INC ,  BEDNAR RICHARD D

Inventor： BEDNAR RICHARD D

IPC: A01D34/64 ,  F15B11/16 ,  F16H61/42 ,  F16H61/44 ,  F16H61/452 ,  F16H61/46 ,  A01D34/68

CPC classification number: F16H61/44 ,  F16H61/42 ,  F16H61/452 ,  F16H61/461

Abstract: A turf care machine (2) includes a base (54) mounted on a plurality of wheels (62, 82), a support structure (196) affixed to and extending from the base (54) for supporting a turf machine operator interface (199), and a hydraulic control system for regulating the speed and direction of the mower (2). The hydraulic system includes: an engine (200) with a drive shaft; a single hydraulic pump driven by the engine (200); a first valve set having an inlet connected to the pump outlet; a first hydraulic wheel motor connected to the first valve set; a second valve set connected to the first valve set and to second hydraulic wheel motor. This drive system has the advantage of using only one pump for driving both drive wheels (62, 82) in a seemingly independent dual path mode of operation, thereby minimizing cost and the number of fluid linkages and parts in such a system.

Abstract translation: 一种草坪护理机（2）包括安装在多个轮（62,82）上的基座（54），固定到基座（54）并从基座（54）延伸的支撑结构（196），用于支撑草坪机操作员接口 ）和用于调节割草机（2）的速度和方向的液压控制系统。 液压系统包括：具有驱动轴的发动机（200）; 由所述发动机（200）驱动的单个液压泵; 第一阀组，其具有连接到泵出口的入口; 连接到第一阀组的第一液压轮马达; 连接到第一阀组和第二液压轮电动机的第二阀组。 该驱动系统具有仅使用一个泵来驱动两个驱动轮（62,82）的优点，这两个驱动轮（62,82）处于看似独立的双路操作模式中，从而最小化了这种系统中的流体连杆和部件的成本和数量。

公开(公告)号：WO2013016196A1

公开(公告)日：2013-01-31

申请号：PCT/US2012/047613

申请日：2012-07-20

Applicant: HUSQVARNA CONSUMER OUTDOOR PRODUCTS N.A., INC. ,  OSWALD, Kevin ,  DWYER, Sean ,  CUSHING, Leanne ,  ADAMS, Michael ,  REESE, Braxton ,  BEDNAR, Richard D. ,  FLYNN, James ,  SANDY, Jerry ,  LIMPO, Thomas ,  BRINKMAN, Steve ,  GLOMSKI, Krzysztof

Inventor： OSWALD, Kevin ,  DWYER, Sean ,  CUSHING, Leanne ,  ADAMS, Michael ,  REESE, Braxton ,  BEDNAR, Richard D. ,  FLYNN, James ,  SANDY, Jerry ,  LIMPO, Thomas ,  BRINKMAN, Steve ,  GLOMSKI, Krzysztof

IPC: A01D34/64

CPC classification number: B62D1/12 ,  A01D34/001 ,  A01D34/006 ,  A01D34/66 ,  A01D34/82 ,  A01D34/824 ,  A01D42/00 ,  A01D42/04 ,  A01D2101/00 ,  B60K17/28 ,  B62D11/04 ,  B62D11/06 ,  B62D51/02 ,  B62D61/065

Abstract: A riding lawn care vehicle may include a frame, an engine, a steering assembly, a support platform and a front mount assembly. The frame may be attachable to a pair of front wheels and a rear wheel assembly of the riding lawn care vehicle. At least a portion of the engine may be mounted to the frame substantially between the front wheels. The steering assembly may include steering levers operably coupled to respective ones of the front wheels of the riding lawn care vehicle via respective hydrostatic drive pumps driven by the engine. The steering assembly may enable steering of the riding lawn care vehicle based on drive speed control of the front wheels responsive to positioning of steering levers of the steering assembly.

Abstract translation: 骑马草坪护理车辆可以包括框架，发动机，转向组件，支撑平台和前部安装组件。 框架可以可附接到骑乘草坪护理车辆的一对前轮和后轮组件。 发动机的至少一部分可以基本上在前轮之间安装到框架上。 转向组件可以包括通过由发动机驱动的各自的静液压驱动泵可操作地联接到骑马草坪护理车辆的相应的前轮的转向杆。 响应于转向组件的转向杆的定位，转向组件可以基于前轮的驱动速度控制来实现骑马草坪护理车辆的转向。