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公开(公告)号：EP1721075B8
公开(公告)日：2009-03-25
申请号：EP04795074.6
申请日：2004-10-12
申请人： Torvec, Inc.
IPC分类号： F04B1/29
CPC分类号： B60K17/105 , F04B1/126 , F04B27/109
摘要： Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels, formed circumferentially and radially transecting the walls of each cylinder, are each positioned to be almost completely closed at all times by the axial cylindrical body of each respective piston during its entire stroke. Each lubricating channel is interconnected, one to another, to form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid 'input' or fluid 'output' passageways, being replenished solely by a minimal flow of fluid entering from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies.
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公开(公告)号：EP1721075B1
公开(公告)日：2008-12-24
申请号：EP04795074.6
申请日：2004-10-12
申请人： Torvec, Inc.
IPC分类号： F04B1/29
CPC分类号： B60K17/105 , F04B1/126 , F04B27/109
摘要： Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels, formed circumferentially and radially transecting the walls of each cylinder, are each positioned to be almost completely closed at all times by the axial cylindrical body of each respective piston during its entire stroke. Each lubricating channel is interconnected, one to another, to form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid 'input' or fluid 'output' passageways, being replenished solely by a minimal flow of fluid entering from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies.
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公开(公告)号：EP1481176A4
公开(公告)日：2008-03-19
申请号：EP02798462
申请日：2002-11-21
申请人： TORVEC INC
IPC分类号： F16H3/56 , F16H3/72 , F16H47/04 , F16H61/40 , F16H61/4043
CPC分类号： F16H61/4043 , F16H47/04 , F16H2037/088 , F16H2200/2005 , Y10T74/1505 , Y10T74/1506 , Y10T74/1524
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公开(公告)号：EP1891356A2
公开(公告)日：2008-02-27
申请号：EP06773228.9
申请日：2006-06-15
申请人： Torvec, Inc.
IPC分类号： F16H61/42
CPC分类号： F16H39/14 , B60K17/105 , B60W10/06 , B60W30/1882 , B60W2710/0644 , F16H47/02 , F16H47/04 , F16H59/18 , F16H59/54 , F16H61/421 , F16H61/431 , F16H61/462 , F16H61/465 , F16H2059/6869 , F16H2059/6876
摘要： The modular transmission uses only a pair of small and light hydraulic machines of remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. The two hydraulic machines operate in a closed loop, one being used as a pump driven by the vehicle's engine, and the other used as a motor. Each machine has a fully articulatable swash plate. By computer control, the angles of the swash plates of the two machines are infinitely varied to provide an appropriate optimum ratio of engine/wheel speed for all conditions from start-up, city driving, hill climbing varied according to load and steepness, and over-drive for highway. This complete vehicle operation is attained while the vehicle's engine continues to operate at relatively constant speeds and relatively low RPM.
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公开(公告)号：EP1890898A2
公开(公告)日：2008-02-27
申请号：EP06773264.4
申请日：2006-06-15
申请人： Torvec, Inc.
IPC分类号： B60K17/00
CPC分类号： F16H39/14 , B60K17/105 , B60W10/06 , B60W30/1882 , B60W2710/0644 , F16H47/02 , F16H47/04 , F16H59/18 , F16H59/54 , F16H61/421 , F16H61/431 , F16H61/462 , F16H61/465 , F16H2059/6869 , F16H2059/6876
摘要： The transmission (400) includes an orbital gear complex (404, 416) in combination with a variable hydraulic pump (408) and motor (406). The input (420) to the transmission is increased in speed by the orbital gearing such that, when the pump and motor are not operating, the orbiter (404) is stationary, and the orbital gearing produces an overdrive condition. A gear reduction is accomplished by rotating the web (426) with the web-rotating device (403), providing a high gear reduction. The pump and motor are preferably long- piston hydraulic machines (110) with infinitely variable swash plates. The hydraulic machines preferably have wobblers stabilized by full gimbals and hold-down plates with elongated holes for the long pistons to eliminate possible impacts between the hold-down plates and the head ends of the long pistons when the swash-plates are at or near their maximum angle of inclination.
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公开(公告)号：EP1721075A1
公开(公告)日：2006-11-15
申请号：EP04795074.6
申请日：2004-10-12
申请人： Torvec, Inc.
IPC分类号： F04B1/29
CPC分类号： B60K17/105 , F04B1/126 , F04B27/109
摘要： Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels, formed circumferentially and radially transecting the walls of each cylinder, are each positioned to be almost completely closed at all times by the axial cylindrical body of each respective piston during its entire stroke. Each lubricating channel is interconnected, one to another, to form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid 'input' or fluid 'output' passageways, being replenished solely by a minimal flow of fluid entering from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies.
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公开(公告)号：EP0760064A4
公开(公告)日：1997-06-04
申请号：EP95921372
申请日：1995-05-23
申请人： TORVEC INC
CPC分类号： F16D3/185 , F16H1/006 , Y10T29/49467
摘要： The disclosed gear system provides distinctive forms of gearing (150a, 156a) for directly transmitting substantially constant velocity between two shafts (154', 160'), while allowing the angle between the shafts (154', 160') to vary, by even more than 80 degrees, in any plane during operation. Several forms of gear teeth appropriate for the system are specifically detailed and applied in the design of the constant-velocity joints.
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