公开(公告)号：US20160195053A1

公开(公告)日：2016-07-07

申请号：US14589154

申请日：2015-01-05

Applicant: Caterpillar Inc.

Inventor： Scott F. Shafer ,  David E. Hackett ,  Steven Y. Tian ,  Martin Lehman

IPC: F02M63/02 ,  F02M37/22 ,  G05D7/06 ,  B01D35/30 ,  B01D35/26 ,  B01D35/00 ,  F02B3/06 ,  B01D29/52

CPC classification number: F02M63/0265 ,  B01D35/26 ,  B01D35/301 ,  F02B3/06 ,  F02M37/0052 ,  F02M37/007 ,  F02M37/08 ,  F02M37/18 ,  F02M37/22 ,  F02M63/0225

Abstract: A fluid conditioning system includes a first filter mount having a first filter inlet port and a first filter outlet port, a first motor, a first pump operatively coupled to the first motor, a second filter mount having a second filter inlet port, a second pump, and a controller operatively coupled to the first motor. The controller is configured to operate the first pump at a flowrate that is higher than a flowrate of the second pump. An outlet of the first pump is fluidly coupled to the first filter inlet port via a first filter inlet conduit, and an inlet of the first pump is fluidly coupled the first filter outlet port via a first filter outlet conduit. An inlet of the second pump is fluidly coupled to the first filter outlet port via the first filter outlet conduit.

Abstract translation: 流体调节系统包括具有第一过滤器入口端口和第一过滤器出口端口的第一过滤器支架，第一电动机，可操作地联接到第一电动机的第一泵，具有第二过滤器入口端口的第二过滤器支架，第二泵 以及可操作地耦合到第一电动机的控制器。 控制器被配置为以比第二泵的流量高的流量操作第一泵。 第一泵的出口通过第一过滤器入口导管流体耦合到第一过滤器入口端口，并且第一泵的入口经由第一过滤器出口管道流体地联接第一过滤器出口端口。 第二泵的入口经由第一过滤器出口导管流体耦合到第一过滤器出口。

公开(公告)号：US20160230720A1

公开(公告)日：2016-08-11

申请号：US14617040

申请日：2015-02-09

Applicant: Caterpillar Inc.

Inventor： David E. Hackett ,  Scott F. Shafer ,  Steven Y. Tian ,  Martin Lehman

IPC: F02M37/14 ,  B01D35/02 ,  B01D35/26 ,  B01D35/157

CPC classification number: F02M37/14 ,  B01D29/56 ,  B01D35/02 ,  B01D35/1573 ,  B01D35/26 ,  B01D37/04 ,  F02M37/08 ,  F02M37/18 ,  F02M37/22

Abstract: A fluid conditioning system includes a first filter mount having a first filter inlet port and a first filter outlet port; a motor unit; a recirculation pump unit operatively coupled to the motor unit, an outlet of the recirculation pump unit being fluidly coupled to the first filter inlet port via a first filter inlet conduit, an inlet of the recirculation pump unit being fluidly coupled to the first filter outlet port via a first filter outlet conduit; a second filter mount having a second filter inlet port; and a delivery pump unit operatively coupled to the motor unit. The inlet of the delivery pump unit is fluidly coupled to the first filter outlet port via the first filter outlet conduit, and the outlet of the delivery pump unit is fluidly coupled to the second filter inlet port via a second filter inlet conduit.

Abstract translation: 流体调节系统包括具有第一过滤器入口和第一过滤器出口的第一过滤器支架; 电机单元; 再循环泵单元，其可操作地耦合到所述马达单元，所述再循环泵单元的出口经由第一过滤器入口导管流体耦合到所述第一过滤器入口端口，所述再循环泵单元的入口流体地联接到所述第一过滤器出口端口 经由第一过滤器出口导管; 具有第二过滤器入口的第二过滤器支架; 以及可操作地联接到马达单元的输送泵单元。 输送泵单元的入口经由第一过滤器出口管道流体耦合到第一过滤器出口端口，并且输送泵单元的出口经由第二过滤器入口导管流体地联接到第二过滤器入口端口。

公开(公告)号：US20180080358A1

公开(公告)日：2018-03-22

申请号：US15273264

申请日：2016-09-22

Applicant: Caterpillar Inc.

Inventor： James S. Ulstad ,  Kranti K. Nellutla ,  Greg L. Armstrong ,  Steven Y. Tian ,  Brian P. Brennan ,  Sasidhar Rayasam ,  Anand KrishnamurthyGopalan

IPC: F01N3/20

CPC classification number: F01N3/206 ,  F01N3/023 ,  F01N9/002 ,  F01N2430/06 ,  F02D41/029 ,  F02D41/405 ,  Y02T10/44 ,  Y02T10/47

Abstract: An engine has an injector communicating with a combustion chamber to introduce a plurality of dosing shots to mix with exhaust gases and regenerate an aftertreatment device downstream of the combustion chamber. An apportionment strategy can apportion a per cylinder quantity, representing the quantity of dosing fuel to introduce per cylinder per combustion cycle, among a predefined number of dosing shots each having a first per shot quantity. The strategy compares the predefined number of dosing shots with a temporal dosing window to determine if predefined number of dosing shots can be conducted within the temporal dosing window. If so, the strategy proceeds to introduce the predefined number of dosing shots and if not, the strategy may recalculate a reduced number of dosing shots and reapportions a second per shot quantity.

公开(公告)号：US10794251B2

公开(公告)日：2020-10-06

申请号：US15273264

申请日：2016-09-22

Applicant: Caterpillar Inc.

Inventor： James S. Ulstad ,  Kranti K. Nellutla ,  Greg L. Armstrong ,  Steven Y. Tian ,  Brian P. Brennan ,  Sasidhar Rayasam ,  Anand KrishnamurthyGopalan

IPC: F01N3/20 ,  F02D41/40 ,  F01N3/023 ,  F01N9/00 ,  F02D41/02

Abstract: An engine has an injector communicating with a combustion chamber to introduce a plurality of dosing shots to mix with exhaust gases and regenerate an aftertreatment device downstream of the combustion chamber. An apportionment strategy can apportion a per cylinder quantity, representing the quantity of dosing fuel to introduce per cylinder per combustion cycle, among a predefined number of dosing shots each having a first per shot quantity. The strategy compares the predefined number of dosing shots with a temporal dosing window to determine if predefined number of dosing shots can be conducted within the temporal dosing window. If so, the strategy proceeds to introduce the predefined number of dosing shots and if not, the strategy may recalculate a reduced number of dosing shots and reapportions a second per shot quantity.

公开(公告)号：US09957940B2

公开(公告)日：2018-05-01

申请号：US14589154

申请日：2015-01-05

Applicant: Caterpillar Inc.

Inventor： Scott F. Shafer ,  David E. Hackett ,  Steven Y. Tian ,  Martin Lehman

IPC: F02M63/02 ,  F02M37/18 ,  F02M37/08 ,  F02M37/00 ,  B01D35/30 ,  F02B3/06 ,  B01D35/26 ,  F02M37/22

CPC classification number: F02M63/0265 ,  B01D35/26 ,  B01D35/301 ,  F02B3/06 ,  F02M37/0052 ,  F02M37/007 ,  F02M37/08 ,  F02M37/18 ,  F02M37/22 ,  F02M63/0225

Abstract: A fluid conditioning system includes a first filter mount having a first filter inlet port and a first filter outlet port, a first motor, a first pump operatively coupled to the first motor, a second filter mount having a second filter inlet port, a second pump, and a controller operatively coupled to the first motor. The controller is configured to operate the first pump at a flowrate that is higher than a flowrate of the second pump. An outlet of the first pump is fluidly coupled to the first filter inlet port via a first filter inlet conduit, and an inlet of the first pump is fluidly coupled the first filter outlet port via a first filter outlet conduit. An inlet of the second pump is fluidly coupled to the first filter outlet port via the first filter outlet conduit.