公开(公告)号：WO2015084249A1

公开(公告)日：2015-06-11

申请号：PCT/SE2014/051456

申请日：2014-12-05

Applicant: SCANIA CV AB

Inventor： ERIKSSON, Henrik ,  EURENIUS, Klas ,  FORSBERG, Carina ,  JONSSON, Anders

IPC: G01N1/10 ,  G01N33/22

CPC classification number: G01N1/10 ,  G01N1/2035 ,  G01N33/287 ,  G01N2001/1031

Abstract: The present invention relates to a sampling unit (100; 300; 400; 600; 700) for liquid samples adapted to be fitted into a system with pressure variations, which system contains or transports a liquid. The sampling unit comprises a wall section (317; 417; 617; 717), which partly surrounds a cavity (301; 401; 601; 701) filled with liquid, an opening (303; 403; 603; 703) equipped with a blocking element (305; 405; 605; 705; 720), which prevents the liquid from flowing into or out of the cavity at a substantially stable pressure in the system, but allows the liquid to flow into the cavity when the pressure in the system increases from a resting pressure to an operating pressure, and out of the cavity when the pressure in the system drops back from the operating pressure to the resting pressure. The sampling unit may be used to collect a fuel sample.

Abstract translation: 本发明涉及一种用于液体样品的采样单元（100; 300; 400; 600; 700），其适于装配到具有压力变化的系统中，该系统包含或运输液体。 采样单元包括壁部分（317; 417; 617; 717），其部分地围绕充满液体的空腔（301; 401; 601; 701），装有阻塞物的开口（303; 403; 603; 703） 元件（305; 405; 605; 705; 720），其防止液体以系统中基本上稳定的压力流入或流出空腔，但是当系统中的压力增加时允许液体流入空腔 从静止压力到操作压力，并且当系统中的压力从操作压力下降到静止压力时离开空腔。 采样单元可用于收集燃料样品。

公开(公告)号：WO2014148986A1

公开(公告)日：2014-09-25

申请号：PCT/SE2014/050302

申请日：2014-03-12

Applicant: SCANIA CV AB

Inventor： CEDFORS, Dan ,  FORSBERG, Carina ,  FOGELBERG, Patrik ,  JONSSON, Anders

IPC: F02M37/22 ,  B60K15/03 ,  F02M37/10 ,  F02M37/18

CPC classification number: B60K15/03 ,  B60K2015/03118 ,  B60K2015/03125 ,  B60K2015/03138 ,  B60K2015/03243 ,  B60Y2200/14 ,  F02M37/0023 ,  F02M37/0029 ,  F02M37/0047 ,  F02M37/10 ,  F02M37/18 ,  F02M37/22

Abstract: A fuel system (4) for a combustion engine (2) comprises a first fuel tank (20), a second fuel tank (22), a first fuel pipe (36) arranged in connection with the first fuel tank (20) and the second fuel tank (22), a second fuel pipe (40) arranged in connection with the first fuel tank (20), two fuel pumps, of which one is a main feed pump (26) and one is a transfer pump (28). The main feed pump (26) is arranged to feed fuel from the first fuel tank (20) through the second fuel pipe (40), and the transfer pump (28) is arranged to feed fuel from the second fuel tank (22) to the first fuel tank (20) via the first fuel pipe (36). A first electric engine (M1 ) is arranged to drive the transfer pump (28), and a second electric engine (M2) is arranged to drive the main feed pump (26). A pre-filter (30) is arranged downstream of the transfer pump (28), and a main fuel filter (12) is arranged downstream of the main feed pump (26). At least one of the fuel pumps (26, 28) may be redirected so that the direction of the flow through at least one of the fuel filters (12, 30) may be reversed. The fuel system pre¬ vents non-filtered fuel, in connection with a replacement of the filter element in a fuel filter, from bypassing the fuel filter. Thus a method is provided for filter replacement in a fuel system (4) which prevents the supply of non-filtered fuel to the combustion engine. This secures the operation of the combustion en¬ gine (2) and a vehicle (1 ) equipped with such a fuel system.

Abstract translation: 一种用于内燃机（2）的燃料系统（4）包括第一燃料箱（20），第二燃料箱（22），与第一燃料箱（20）连接的第一燃料管（36） 第二燃料箱（22），与第一燃料箱（20）连接配置的第二燃料管（40），两个燃料泵，一个是主供给泵（26），一个是输送泵（28） 。 主供给泵26设置成通过第二燃料管40从第一燃料箱20供给燃料，而输送泵28设置成将来自第二燃料箱22的燃料供给到 第一燃料箱（20）经由第一燃料管（36）。 第一电动发动机（M1）被布置成驱动输送泵（28），并且第二电动发动机（M2）布置成驱动主供给泵（26）。 预过滤器（30）布置在输送泵（28）的下游，并且主燃料过滤器（12）布置在主供给泵（26）的下游。 燃料泵（26,28）中的至少一个可以被重定向，使得通过燃料过滤器（12,30）中的至少一个的流动的方向可以颠倒。 与燃料过滤器中的过滤元件的更换相关的燃料系统预先没有过滤的燃料绕过燃料过滤器。 因此，提供了一种用于燃料系统（4）中的过滤器更换的方法，其防止向内燃机供应未经过滤的燃料。 这确保燃烧燃烧器（2）的操作和装备有这种燃料系统的车辆（1）。

公开(公告)号：WO2014189444A1

公开(公告)日：2014-11-27

申请号：PCT/SE2014/050605

申请日：2014-05-16

Applicant: SCANIA CV AB

Inventor： CEDFORS, Dan ,  KYLSTRÖM, Kim ,  FOGELBERG, Patrik ,  JONSSON, Anders ,  FORSBERG, Carina

IPC: F02D41/32 ,  B60W40/06 ,  F02D33/00 ,  F02D41/02 ,  F02M37/04 ,  F02M37/10

CPC classification number: F02D41/3082 ,  B60K2015/0319 ,  F01N9/002 ,  F01N2430/085 ,  F01N2610/03 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/12 ,  F01N2900/1606 ,  F02D41/3854 ,  F02D2200/701 ,  F02D2200/702 ,  F02M37/0064 ,  F02M37/0088 ,  Y02T10/47

Abstract: The present invention proposes a method and a system for control of a low-pressure circuit in a fuel system, of a vehicle, which circuit is arranged to provide the vehicle' s engine with fuel from at least one fuel tank via a pressure change system. The system according to the present invention comprises a determination unit adapted to making a determination of a future working point for the engine. The determination unit is adapted to basing this determination on information about a section of road ahead. The system comprises also a pump operating- unit adapted to operating at least one controllable fuel pump which is part of the low- pressure circuit. The pump operating unit is adapted to basing this operation on the future working point.

Abstract translation: 本发明提出了一种用于控制车辆燃料系统中的低压回路的方法和系统，该电路被布置成经由压力变化系统向车辆的发动机提供来自至少一个燃料箱的燃料 。 根据本发明的系统包括：确定单元，用于确定发动机的未来工作点。 确定单元适于将该确定基于关于前方道路的一部分的信息。 该系统还包括适于操作作为低压回路的一部分的至少一个可控燃料泵的泵操作单元。 泵操作单元适用于将此操作基于未来工作点。

公开(公告)号：WO2014148987A1

公开(公告)日：2014-09-25

申请号：PCT/SE2014/050303

申请日：2014-03-12

Applicant: SCANIA CV AB

Inventor： CEDFORS, Dan ,  FORSBERG, Carina ,  FOGELBERG, Patrik ,  JONSSON, Anders

IPC: F02M37/10 ,  B60K15/03 ,  F02M37/18 ,  F02M37/22

CPC classification number: B60K15/03 ,  B60K2015/03118 ,  B60K2015/03125 ,  B60K2015/03138 ,  B60K2015/03236 ,  B60Y2200/14 ,  F02M37/0023 ,  F02M37/0029 ,  F02M37/0047 ,  F02M37/0088 ,  F02M37/10 ,  F02M37/18 ,  F02M37/22

Abstract: A fuel system (4) for a combustion engine (2) comprises a first fuel tank (20), a second fuel tank (22), a first fuel pipe (36) arranged in connection with the first fuel tank (20) and the second fuel tank (22), a second fuel pipe (40) arranged in connection with the first fuel tank (20), a main feed pump (26), and a trans¬ fer pump (28). The main feed pump (26) is arranged to feed fuel from the first fuel tank (20) through the second fuel pipe (40) and the transfer pump (28) is arranged to feed fuel from the second fuel tank (22) to the first fuel tank (20) via the first fuel pipe (36). A first electric engine (M1 ) is arranged to drive the transfer pump (28) and a second electric engine (M2) is arranged to drive the main feed pump (26). A pre-filter (30) is arranged downstream of the transfer pump (28), so that the transfer pump (28) feeds pressurised fuel through the pre-filter (30). The fuel system also enables a method to control a fuel system (4) with good filtration of the fuel, and which reduces the risk of operational disruptions in a combustion engine (2) and a motor vehicle.

Abstract translation: 一种用于内燃机（2）的燃料系统（4）包括第一燃料箱（20），第二燃料箱（22），与第一燃料箱（20）连接的第一燃料管（36） 第二燃料箱（22），与第一燃料箱（20）连接配置的第二燃料管（40），主供给泵（26）和转子泵（28）。 主供给泵26设置成通过第二燃料管40从第一燃料箱20供给燃料，并且输送泵28设置成将燃料从第二燃料箱22供给到 第一燃料箱（20）经由第一燃料管（36）。 第一电动发动机（M1）被布置成驱动输送泵（28），并且第二电动发动机（M2）布置成驱动主供给泵（26）。 预过滤器（30）布置在输送泵（28）的下游，使得输送泵（28）通过预过滤器（30）供给加压的燃料。 燃料系统还使得能够以良好的燃料过滤来控制燃料系统（4）的方法，并且这降低了内燃机（2）和机动车辆中的操作中断的风险。