-
公开(公告)号：US20240128726A1
公开(公告)日：2024-04-18
申请号：US18332260
申请日：2023-06-09
发明人： Michael Czekala , Thomas G. Leone
摘要： System and methods for operating a vehicle that includes a boosted engine are described. In one example, a spark plug may be adjusted between two operating states to reduce a possibility of pre-ignition and spark plug fouling. A first operating state may be conducive to operating the engine at light loads. The first operating state may be conducive to operating the engine at higher loads.
-
公开(公告)号：US20230378722A1
公开(公告)日：2023-11-23
申请号：US17913539
申请日：2021-03-25
申请人： PGES GmbH
发明人： David Axel HERDIN , Rüdiger HERDIN
摘要： A spark plug (1) for internal combustion engines has a center electrode (6) arranged along a central axis (2) of the spark plug (1), which electrode (6) is enclosed by an insulator (5) at least in portions, and a housing (9) in which the insulator (5) is received, at least in portions. A gap (20) is formed, at least in portions, between the insulator (5) and the housing (9). The gap (20) is at least partially filled with a material (23) having a thermal conductivity (λ)≥1 W/(m*K).
-
公开(公告)号：US20210359494A1
公开(公告)日：2021-11-18
申请号：US17385637
申请日：2021-07-26
申请人： TENNECO INC.
摘要： A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled.
-
公开(公告)号：US20210159675A1
公开(公告)日：2021-05-27
申请号：US16953488
申请日：2020-11-20
申请人： DENSO CORPORATION
发明人： Masamichi SHIBATA
摘要： A spark plug has a housing, an insulator, a central electrode and a ground electrode. A projection part is formed projecting radially from the housing. The spark plug has a structure which satisfies a relationship of t2/t1≤0.85, s1≤0.5, and s1≥1.05−t2/t1. A leg part of the insulator has a first end and a second end in an axial direction thereof. The second end is located opposite to the first end in the axial direction. In the relationship, t1 represents a first radial thickness of the first end in a radial direction of the leg part, t2 represents a center radial thickness in the radial direction at a middle position of the leg part, and s1 represents a first gap width in the radial direction of the housing between the projection part of the housing and the first end of the leg part.
-
公开(公告)号：US11005238B1
公开(公告)日：2021-05-11
申请号：US16953488
申请日：2020-11-20
申请人： DENSO CORPORATION
发明人： Masamichi Shibata
摘要： A spark plug has a housing, an insulator, a central electrode and a ground electrode. A projection part is formed projecting radially from the housing. The spark plug has a structure which satisfies a relationship of t2/t1≤0.85, s1≤0.5, and s1≥1.05−t2/t1. A leg part of the insulator has a first end and a second end in an axial direction thereof. The second end is located opposite to the first end in the axial direction. In the relationship, t1 represents a first radial thickness of the first end in a radial direction of the leg part, t2 represents a center radial thickness in the radial direction at a middle position of the leg part, and s1 represents a first gap width in the radial direction of the housing between the projection part of the housing and the first end of the leg part.
-
公开(公告)号：US20210036491A1
公开(公告)日：2021-02-04
申请号：US16640133
申请日：2018-07-16
发明人： Yusuke KAWASHIMA
摘要： A spark plug that allows a heat transfer member to be fixed to an insulator in a simple manner. The spark plug includes: a tubular insulator extending in an axial line direction from a front side to a rear side; and a tubular metal shell fixed to an outer circumference of the insulator and having an external thread formed on a part of an outer circumferential surface thereof, wherein the insulator has a groove formed on a portion, of an outer circumferential surface thereof, that overlaps the external thread of the metal shell in the axial line direction, a heat transfer member mounted in the groove is in contact with an inner circumferential surface of the metal shell, and a portion of the heat transfer member is disposed in the groove of the insulator.
-
公开(公告)号：US20200083674A1
公开(公告)日：2020-03-12
申请号：US16494331
申请日：2017-08-08
发明人： Susumu IMAI
摘要： The spark plug includes an insulator, a metal shell, and a buffering member. The buffering member is filled in a space that is enclosed by an inner peripheral surface of the metal shell and an outer peripheral surface of the insulator. 3 mm2≤L×T is satisfied in a case where: a length in a direction of an axial line of a filled portion filled with the buffering member is defined as a filling length L; a thickness, of a screw portion of the metal shell, that is half a difference left after subtraction of the inner diameter of the metal shell from the pitch diameter of the screw portion is defined as an effective thickness; and a minimum value of the effective thickness of a portion, of the screw portion, present rearward of an inner diameter reduction portion of the metal shell is defined as a minimum thickness T.
-
公开(公告)号：US20200028334A1
公开(公告)日：2020-01-23
申请号：US16507631
申请日：2019-07-10
发明人： Maik Merke , John Burrows
IPC分类号： H01T13/36
摘要： A spark plug is specified, having a metal shell with an axial bore and a threaded section, having an insulator with an axial bore that is located at least partially inside the axial bore of the metal shell; a center electrode that is accommodated at least partially inside the axial bore of the insulator; a ground electrode that is held by the metal shell, wherein an end region of the ground electrode forms, together with the center electrode, an ignition gap, and having a sealing ring that extends at least between an outside shoulder of the insulator and an inside shoulder of the metal shell, wherein the sealing ring has polyaryl ether ketone (PAEK), preferably polyether ether ketone (PEEK).
-
公开(公告)号：US20200014176A1
公开(公告)日：2020-01-09
申请号：US16493030
申请日：2018-03-14
申请人： Robert Bosch GmbH
发明人： Chris Schimmel , Ugur Yilmaz
IPC分类号： H01T13/36
摘要： A spark plug includes an insulator, a housing, and a deformable sealing washer disposed between the insulator and the housing, the insulator having an annular full-perimeter shoulder against which the sealing washer rests, and the shoulder having a radius in a range of between 0.20 mm and 0.60 mm.
-
10.发明授权公开(公告)号：US10270229B2
公开(公告)日：2019-04-23
申请号：US15557847
申请日：2016-03-17
摘要： A method of producing a spark plug comprises (a) a step of combining a metallic shell and an insulator; (b) a step of inserting a portion of the assembly on its forward end side into a pressure container; (c) a step of bringing an insulating member into contact with the outer circumferential surface of a base side portion of the insulator over the entire circumference thereof, and pressing the assembly so as to close the opening by the assembly; and (d) a step of pressurizing the interior of the pressure container and applying a predetermined voltage between the terminal electrode and the metallic shell, wherein the step (b) includes a step of inserting the portion of the assembly on the forward end side into the pressure container such that a gap formed between the outer surface of the insulator and the inner surface of the metallic shell on the forward end side of the assembly is disposed in the pressure container.
-
-
-
-
-
-
-
-
-
搜索结果
248 条记录 (耗时 0.02 秒)
