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公开(公告)号：US20150345450A1
公开(公告)日：2015-12-03
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijayagandeeban Subbaihannadurai , Deepak Sahini
IPC: F02M61/04
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
Abstract translation: 注射器具有喷射器主体，其包括限定内壁和纵向轴线的喷射器腔，喷射器孔和可滑动地设置在喷射器腔内的柱塞。 柱塞具有沿着柱塞纵向的不同位置处的外部部分和内部部分。 内部部分具有多个表面部分，其包括构造成与注射器腔体的内壁大致配合的引导部分，引导柱塞沿着纵向轴线方向可滑动地移动，并且基本上防止柱塞在注射器内侧向平移 腔。 所述多个表面部分还包括限制部分，所述限制部分构造成沿着所述内部部分的长度轴向地在所述内部部分的外表面和所述注射器腔体的内壁之间形成限制腔。
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2.发明申请B-LCCR INJECTOR PILOT VALVE ORIFICE, ARMATURE AND PLUNGER GUIDE ARRANGEMENT 有权B-LCCR注射器引导阀配件，臂和引导装置公开(公告)号：US20160010606A1
公开(公告)日：2016-01-14
申请号：US14330657
申请日：2014-07-14
Applicant: Cummins Inc.
Inventor： Tamas Rauznitz
CPC classification number: F02M63/0036 , B05B9/0403 , F02M47/027 , F02M51/061 , F02M63/0071 , F02M2200/304
Abstract: A fuel injector device for injecting fuel into a combustion chamber of an internal combustion engine is provided in which the fuel injector includes a body having an upper chamber and a lower chamber, an annular shoulder between the upper and lower chambers, an armature assembly disposed in the upper chamber, and a pilot valve seat having an inlet orifice disposed in the lower chamber and an outlet orifice disposed in the upper chamber. The pilot valve seat has a shaft extending between the outlet and inlet orifice and an angled shoulder between the outlet and inlet orifice. The angle shoulder of the shaft prevents fuel flow around the shaft between the upper and lower chambers. The armature assembly is configured to move to an upward position and to a downward position, the shaft also being disposed within the armature assembly to guide the armature assembly between the upward and downward positions.
Abstract translation: 提供了一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器装置，其中燃料喷射器包括具有上室和下室的主体，上下室之间的环形肩部，设置在 上腔室和具有设置在下室中的入口孔的导阀座和设置在上腔室中的出口孔。 先导阀座具有在出口和入口孔之间延伸的轴和在出口和入口孔之间的成角度的肩部。 轴的角度肩部防止燃油在上部和下部腔室之间绕轴旋转。 衔铁组件构造成移动到向上的位置和向下的位置，所述轴也设置在电枢组件内，以将电枢组件引导在上下位置之间。
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公开(公告)号：US11624359B2
公开(公告)日：2023-04-11
申请号：US17481381
申请日：2021-09-22
Applicant: Cummins Inc.
Inventor： Anthony A. Shaull , Tamas Rauznitz , Brian M. Watson , Patrick D. Chasteen , Luke Allen Jones
Abstract: A pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
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Patent Agency Ranking
公开(公告)号：US20220003231A1
公开(公告)日：2022-01-06
申请号：US17481381
申请日：2021-09-22
Applicant: Cummins Inc.
Inventor： Anthony A. Shaull , Tamas Rauznitz , Brian M. Watson , Patrick D. Chasteen , Luke Allen Jones
Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
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公开(公告)号：US11149727B2
公开(公告)日：2021-10-19
申请号：US15571447
申请日：2015-05-15
Applicant: CUMMINS INC.
Inventor： Anthony A. Shaull , Tamas Rauznitz , Brian M. Watson , Patrick D. Chasteen , Luke Allen Jones
Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
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公开(公告)号：US20180180007A1
公开(公告)日：2018-06-28
申请号：US15571447
申请日：2015-05-15
Applicant: CUMMINS INC.
Inventor： Anthony A. Shaull , Tamas Rauznitz , Brian M. Watson , Patrick D. Chasteen , Luke Allen Jones
CPC classification number: F02M59/462 , F02M59/02 , F02M59/464 , F16K15/026
Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
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公开(公告)号：US09822748B2
公开(公告)日：2017-11-21
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijaygandeeban Subbaihaannadurai , Deepak Sahini
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
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公开(公告)号：US09719476B2
公开(公告)日：2017-08-01
申请号：US14330657
申请日：2014-07-14
Applicant: Cummins Inc.
Inventor： Tamas Rauznitz
CPC classification number: F02M63/0036 , B05B9/0403 , F02M47/027 , F02M51/061 , F02M63/0071 , F02M2200/304
Abstract: A fuel injector device for injecting fuel into a combustion chamber of an internal combustion engine is provided in which the fuel injector includes a body having an upper chamber and a lower chamber, an annular shoulder between the upper and lower chambers, an armature assembly disposed in the upper chamber, and a pilot valve seat having an inlet orifice disposed in the lower chamber and an outlet orifice disposed in the upper chamber. The pilot valve seat has a shaft extending between the outlet and inlet orifice and an angled shoulder between the outlet and inlet orifice. The angle shoulder of the shaft prevents fuel flow around the shaft between the upper and lower chambers. The armature assembly is configured to move to an upward position and to a downward position, the shaft also being disposed within the armature assembly to guide the armature assembly between the upward and downward positions.
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