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1. 发明授权

EP1451500B1 HYDRAULIC HYBRID ACCUMULATOR SHUT-OFF VALVE 有权
标题翻译：阀用于液压混合动力MEMORY
公开(公告)号：EP1451500B1
公开(公告)日：2012-08-01
申请号：EP02780646.2
申请日：2002-11-13
申请人： U.S. Environmental Protection Agency
发明人： GRAY, Charles, L., Jr.
IPC分类号： B60K6/12 , F15B1/18 , F16L55/04
CPC分类号： F15B1/22 , B60K6/12 , F15B1/18 , F15B2201/205 , F15B2201/3152 , F15B2201/411 , F15B2201/43 , F15B2201/51 , F15B2201/615 , F16K31/1221 , F16K31/1225 , Y02T10/6208 , Y10T137/7782
摘要： A hydraulic accumulator (14) is equipped with a novel shut-off valve. The shut off-valve includes a valve body (21) having a cylindrical hollow with a valve seat (37) surrounding one end. The main piston (24) including a piston head has a central opening (30) and is slidably mounted within the cylindrical hollow of the valve body. A poppet valve (22) has a valve head which mates with the valve seat and a valve stem which extends through the central opening of the piston to guide axial movement of the poppet valve relative to the piston. A spring (23) is mounted between the valve head and the main piston head for urging the valve head away from the piston head. A control valve (27) moves the piston relative to the valve body between open and closed positions responsive to signals from a computer (72) which signals valve closing upon determination that flow rate through the valve exceeds a maximum period. The spring between the poppet valve head and the piston head exerts a force approximately equal to that of a pressure drop across the poppet valve at a predetermined maximum flow rate.

2. 发明公开

EP1856437A2 LIGHTWEIGHT LOW PERMEATION PISTON-IN-SLEEVE ACCUMULATOR 审中-公开
标题翻译：轻质ACC低渗透率活塞的情况下
公开(公告)号：EP1856437A2
公开(公告)日：2007-11-21
申请号：EP06748297.6
申请日：2006-03-06
申请人： U.S. Environmental Protection Agency
发明人： MOSKALIK, Andrew, J. , GRAY, Charles, L.
IPC分类号： F16L55/04
CPC分类号： F15B1/024 , B60K6/12 , F15B1/24 , F15B2201/205 , F15B2201/312 , F15B2201/4053 , Y02T10/6208
摘要： A lightweight, low permeation, piston-in-sleeve high-pressure accumulator is provided. The accumulator includes a cylindrical composite pressure vessel with two integral rounded ends. A piston slidably disposed in a thin nonpermeable internal sleeve in the accumulator separates two chambers, one adapted for containing a working fluid and the other adapted for containing gas under pressure. Working fluid is provided in a volume between the nonpermeable internal sleeve and the composite pressure vessel wall. Further means are provided for withstanding harmful effects of radial flexing of the composite vessel wall under high pressures, and from stresses present in use in mobile applications such as with a hydraulic power system for a hydraulic hybrid motor vehicle. A method for pre-charging the device is also presented.

3. 发明公开

EP1695233A1 METHODS OF OPERATION FOR CONTROLLED TEMPERATURE COMBUSTION ENGINES USING GASOLINE-LIKE FUEL 审中-公开
标题翻译：操作程序燃料BENZINARTIGEM规则温内燃机
公开(公告)号：EP1695233A1
公开(公告)日：2006-08-30
申请号：EP04813169.2
申请日：2004-12-07
申请人： U.S. Environmental Protection Agency
发明人： GRAY, Charles, L., Jr.
IPC分类号： G06F17/00 , F02B5/00
CPC分类号： F02D41/008 , F02B1/12 , F02B29/0493 , F02D35/023 , F02D41/3035 , F02D2200/0406 , F02D2200/0414 , F02M26/06 , F02M26/25 , F02M26/47 , Y02T10/128 , Y02T10/146
摘要： The present invention provides a multicylinder homogeneous charge, compression ignition (HCCI) type engine, also known as a premixed charge compression ignition (PCCI) engine, with a control system designed to maintain stable, efficient, low emission HCCI combustion during engine transitions from one speed/load operating point to another speed/load operating point. HCCI combustion control in the invention is obtained by adjusting specified 'engine operating parameters' that influence the crank angle location of the combustion event (viz., charge-air intake temperature, intake pressure (boost), charge-air oxygen concentration, engine cooling, and engine compression ratio), in coordination with adjustments in fuel quantity, by the following preferred method: (1) determining an existing 'combustion parameter' value such as the maximum rate of pressure rise (MRPR), for each cycle of each cylinder, (2) adjusting an engine operating parameter of the engine to effect a change in said combustion parameter value, (3) thereafter adjusting an engine 'control parameter' (e.g., commanded fuel quantity) to each cylinder, responsive to the effect of the adjusted engine operating condition, to maintain a desired target for the combustion parameter value, and (4) individually adjusting cooling, heating and/or fuel command to individual 'outlier' (deviating) cylinders, to achieve uniform combustion. Preferred control strategies to maximize HCCI combustion stability are also set forth, such as averaging sensed combustion parameter values and/or ignoring combustion parameter values within a specified dead band region so as to ignore cycle-to-cycle random variations of the combustion parameter values at stable HCCI operating points. Additional methods to minimize such engine combustion variability include increasing intake pressure (boost) and controlling combustion chamber cooling, and are additionally described.

4. 发明公开

EP1534942A1 CONTROLLED TEMPERATURE COMBUSTION ENGINE 有权
标题翻译：控制温度内燃发动机
公开(公告)号：EP1534942A1
公开(公告)日：2005-06-01
申请号：EP03721386.5
申请日：2003-03-19
申请人： U.S. Environmental Protection Agency
发明人： GRAY, Charles, L., Jr.
IPC分类号： F02B33/00 , F02B5/00 , F02M7/00 , F02D23/00
CPC分类号： F16J15/42 , F01N3/035 , F01N13/009 , F01N2340/04 , F01N2340/06 , F01N2430/06 , F02B1/12 , F02B29/0418 , F02B37/10 , F02B37/14 , F02B39/10 , F02D35/026 , F02D41/0007 , F02D41/0052 , F02D41/144 , F02D41/1454 , F02D41/3035 , F02D2200/0406 , F02M26/08 , F02M26/15 , F02M26/23 , F02M26/35 , F02M26/46 , F16J15/3448 , Y02T10/144 , Y02T10/146
摘要： A method of operating an internal combustion engine (22), wherein intake ambient air is boosted to a higher pressure by passage through at least one compressor (19) and then introduced into the internal combustion engine (22). Fuel is also introduced into the internal combustion engine (22) for providing combustion in admixture with the air charge at a combustion temperature approximating a target value. Various engine operating parameters, inclusive of torque demand, e.g., accelerator pedal depression (33), are sensed and the boosted pressure is changed in a manner proportional to a change in the sensed torque demand so as to maintain the combustion temperature at approximately the target value, i.e., below 2100°K.

5. 发明公开

EP1423611A1 FULLY-CONTROLLED, FREE-PISTON ENGINE 有权
标题翻译：全控自由活塞发动机
公开(公告)号：EP1423611A1
公开(公告)日：2004-06-02
申请号：EP02775701.2
申请日：2002-08-13
申请人： U.S. Environmental Protection Agency
发明人： GRAY, Charles, L., Jr.
IPC分类号： F04B17/00 , F04B35/00
CPC分类号： F04B17/05 , F02B1/12 , F02B71/04 , F04B19/003
摘要： A free-piston engine includes at least one dual piston assembly, each of which has a pair of axially opposed combustion cylinders (12) and free-floating combustion pistons (13, 14) respectively mounted in the combustion cylinders for reciprocating linear motion responsive to successive combustions. A pumping piston (15, 16) extends from and is fixed to each of the combustion pistons and reciprocates within a hydraulic cylinder (17, 18) located between paired combustion cylinders. The paired combustion cylinders are rigidly connected by a cage (19) for reciprocating movement in tandem.

6. 发明公开

EP1290329A1 PUMPED EGR SYSTEM 审中-公开
标题翻译：带泵EGR系统
公开(公告)号：EP1290329A1
公开(公告)日：2003-03-12
申请号：EP01941666.8
申请日：2001-05-30
申请人： U.S. Environmental Protection Agency
发明人： HELLMAN, Karl, H. , GRAY, Charles, L., Jr.
IPC分类号： F02M25/07
CPC分类号： F02D13/0276 , F02M26/01 , F02M26/05 , F02M26/06 , F02M26/23 , F02M26/43 , Y02T10/18
摘要： An exhaust gas recirculation system for an internal combustion engine includes an exhaust manifold (50) and at least one exhaust flow control valve (41, 42, 43, 44) located between the engine and the exhaust manifold (50). The exhaust flow control valve (41) diverts a portion of the exhaust gas from each cycle of one cylinder (31) and feeds that diverted portion to another of the cylinders (32) through an exhaust gas recirculation passage (411), bypassing the exhaust manifold (50), whereby an exhaust stroke of a piston within the one cylinder (31) serves to pump exhaust gas through the exhaust control valve (41) in another cylinder (32).

7. 发明公开

EP1194685A1 TORQUE BALANCED OPPOSED-PISTON ENGINE 有权
标题翻译：相反活塞扭矩平衡式活塞发动机
公开(公告)号：EP1194685A1
公开(公告)日：2002-04-10
申请号：EP00947189.7
申请日：2000-07-11
申请人： U.S. Environmental Protection Agency
发明人： GRAY, Charles, L., Jr.
IPC分类号： F02B75/24
CPC分类号： F02B75/24 , F02B73/00 , F02B75/243 , F02B75/32
摘要： An internal combustion engine having first and second synchronized subassemblies (5, 6). The subassemblies are synchronized by a mechanical linkage (1, 2) of their crankshafts (7, 8) to provide identical timing between corresponding pistons (10-13) in the two subassemblies (5, 6).

8. 发明公开

EP2066908A2 SAFE OVER-CENTER PUMP/MOTOR 审中-公开
标题翻译： SAFE改变方向泵和改变方向MOTOR
公开(公告)号：EP2066908A2
公开(公告)日：2009-06-10
申请号：EP07839056.4
申请日：2007-09-26
申请人： Government of The United States of America, as represented by The Administrator of The U.S. Environmental Protection Agency
发明人： GRAY, Charles L. , TESORIERO, Anthony J.
IPC分类号： F15B1/02 , F15B20/00 , B60K6/12 , F04B1/32 , F04B49/00 , F04B49/10 , F16H61/40 , F16H61/42
CPC分类号： F15B20/00 , B60K6/12 , F04B49/03 , F15B1/024 , F16H61/4192 , F16H61/421 , F16H61/439 , Y02T10/6208
摘要： A fail-safe system for a hybrid vehicle employing an over-center variable-displacement hydraulic motor includes an actuator configured to stroke the motor to a zero angle if each of two control ports is supplied with fluid at an equal pressure. A control valve is configured, in the event of loss of power to the valve, to default to a position in which high-pressure fluid is supplied to both control ports. A pilot-controlled check valve is coupled between high- and low-pressure ports of the motor such that, during normal operation, passage of fluid through the check valve from the high-pressure port to the low-pressure port is checked, while passage of fluid through the check valve from the second port to the first port is enabled. When the pilot control is activated, passage of fluid in the opposite direction is also enabled.

9. 发明授权

EP1522692B1 Fully-controlled, free-piston engine 有权
标题翻译：完全控制的自由活塞发动机
公开(公告)号：EP1522692B1
公开(公告)日：2008-07-09
申请号：EP05000548.7
申请日：2002-08-13
申请人： U.S. Environmental Protection Agency
发明人： Gray, Charles L., Jr.
IPC分类号： F02B71/04 , F04B19/00
CPC分类号： F04B17/05 , F02B1/12 , F02B71/04 , F04B19/003

10. 发明公开

EP1797303A2 MULTI-STAGE TURBOCHARGING SYSTEM WITH EFFICIENT BYPASS 审中-公开
标题翻译：凭借高效的旁路多级涡轮增压系统
公开(公告)号：EP1797303A2
公开(公告)日：2007-06-20
申请号：EP05786502.4
申请日：2005-08-15
申请人： U.S. Environmental Protection Agency
发明人： HAUGEN, David, James
IPC分类号： F02D23/00 , F02B33/44
CPC分类号： F02C6/12 , F01D9/026 , F01D17/141 , F01D17/143 , F01D17/146 , F01D17/165 , F02B29/083 , F02B37/001 , F02B37/004 , F02B37/013 , F02B37/025 , F02B37/18 , F02B37/183 , F02B37/22 , F02C3/13 , F02D9/06 , F02M26/08 , F02M26/10 , F02M26/23 , F05D2220/40 , Y02T10/144 , Y02T10/146
摘要： The present invention recovers the loss of a portion of exhaust energy conventionally occurring in bypassing exhaust flow from one stage to another in a multi-stage turbocharging system. The method of preserving such exhaust energy is through converting a portion of the exhaust energy of the bypassed flow from pressure to kinetic energy (velocity) by passing the bypassed flow through a VGT vane outlet or other variable geometry valve/nozzle, and then not allowing the accelerated flow to dissipate energy before reaching the subsequent stage's turbine wheel, where the accelerated flow may then be converted to a mechanical rotational force by the lower pressure turbine's wheel. Preferred hardware for achieving the object of the invention is also set forth, including a preferred two-volute low pressure turbocharging system with a VGT mechanism in one turbine volute only, or an alternative low pressure turbocharger with two low pressure turbines on a common shaft.

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