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公开(公告)号：US11286876B1
公开(公告)日：2022-03-29
申请号：US17368094
申请日：2021-07-06
Applicant: Caterpillar Inc.
Inventor： Viorel Petrariu , Jonathan Richard Chittenden , Jeff Allen Howard , John W. Milem
Abstract: A cylinder head casting in a cylinder head assembly includes a coolant cavity upper surface and a coolant cavity lower surface forming a coolant cavity. The coolant cavity lower surface is contoured to form an igniter-support prominence and cast-in coolant channels through the igniter-support prominence to feed a flow of coolant through a cooling moat extending circumferentially around an igniter post supporting an igniter sleeve. The igniter sleeve abuts the cylinder head, radially outward of the igniter post, at a first contact location and a second contact location in an alternating arrangement with a first coolant feed opening and a second coolant feed opening. Related methodology relating to making a cylinder head is also disclosed.
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公开(公告)号：US11585288B1
公开(公告)日：2023-02-21
申请号：US17531077
申请日：2021-11-19
Applicant: Caterpillar Inc.
Inventor： Jonathan R Chittenden , Viorel Petrariu , Curtis John Graham
Abstract: A cylinder head assembly includes a cylinder head having a top deck, a fire deck, and an igniter post extending upward from the fire deck. An igniter sleeve is within an igniter bore in the cylinder head and includes a locating surface clamped against an upward facing stop surface of the cylinder head. A tip coolant clearance is defined axially between a sleeve tip and the fire deck, and a body coolant clearance is defined peripherally between the igniter sleeve and the cylinder head and is continuously circumferential of the igniter sleeve axially between the sleeve tip and a coolant cavity formed in the cylinder head.
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公开(公告)号：US11519323B1
公开(公告)日：2022-12-06
申请号：US17478421
申请日：2021-09-17
Applicant: Caterpillar Inc.
Inventor： Viorel Petrariu , Jonathan Richard Chittenden , James Jay Cress
Abstract: A prechamber sparkplug assembly includes a sparkplug, and a sparkplug housing having a prechamber tip. The sparkplug housing includes a plug bore centered on a longitudinal axis of the sparkplug housing and receiving the sparkplug, an inside radial wall extending around the plug bore, and an outside radial wall. A cooling cavity is formed between the inside radial wall and the outside radial wall. Coolant ports extend through the outside radial wall and fluidly connect to the cooling cavity to place the cooling cavity in fluid communication with a water jacket in a cylinder head.
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公开(公告)号：US12215651B1
公开(公告)日：2025-02-04
申请号：US18543195
申请日：2023-12-18
Applicant: Caterpillar Inc.
Inventor： Viorel Petrariu , Jonathan R. Chittenden , Michael D. Gough
Abstract: A cylinder head includes a cylinder head casting having a top deck and a bottom deck, and a coolant cavity. The cylinder head also includes an igniter column including an upper section, and a necked-down lower section extending upwardly from the bottom deck. The igniter column includes an inner surface forming an igniter bore such as for a sparkplug, and an outer heat-dissipation surface. The outer heat-dissipation surface is exposed in circumferential uniformity to the coolant cavity and extends radially inwardly of the inner surface at locations axially between an igniter seat and a bottom deck cavity surface. In some embodiments, a cylinder head includes an enclosed as-cast cooling channel axially between an igniter seat and a bottom deck combustion surface.
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Patent Agency Ranking
公开(公告)号：USD1024133S1
公开(公告)日：2024-04-23
申请号：US29739335
申请日：2020-06-24
Applicant: Caterpillar Inc.
Designer： Viorel Petrariu , Jonathan Richard Chittenden , Steven Ramey
Abstract: FIG. 1 is a perspective view of a cylinder head showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
Grayscale shading illustrates contour.
The evenly-spaced broken lines illustrate portions of the cylinder head that form no part of the claimed design. The dot-dash lines illustrate the boundary of the claimed design and form no part of the claimed design.-
公开(公告)号：US11536220B1
公开(公告)日：2022-12-27
申请号：US17691516
申请日：2022-03-10
Applicant: Caterpillar Inc.
Inventor： Jonathan Richard Chittenden , Jeff Allen Howard , Viorel Petrariu , John W Milem
Abstract: A cylinder head in a cylinder head assembly includes an upper deck, a fire deck, gas exchange conduits, and a coolant cavity extending peripherally around the gas exchange conduits. The cylinder head also includes an igniter socket having an igniter post, and a radially outward sleeve step continuously circumferential of an igniter bore center axis. A cooling moat is formed between the igniter post and the sleeve step. The coolant cavity includes a valve bridge through-channel and a valve bridge part-way channel each fluidly connected to the igniter socket to provide coolant flow into and out of the cooling moat passively.
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公开(公告)号：US11459975B1
公开(公告)日：2022-10-04
申请号：US17368163
申请日：2021-07-06
Applicant: Caterpillar Inc.
Inventor： Viorel Petrariu , Jonathan Richard Chittenden
Abstract: A cylinder head casting in a cylinder head assembly includes a coolant cavity upper surface and a coolant cavity lower surface forming a coolant cavity. The coolant cavity lower surface is contoured to form an igniter-support prominence and cast-in coolant channels through the igniter-support prominence to feed a flow of coolant through a cooling moat extending circumferentially around an igniter post supporting an igniter sleeve. The igniter sleeve abuts the cylinder head, radially outward of the igniter post, at a first contact location and a second contact location in an alternating arrangement with a first coolant feed opening and a second coolant feed opening. Related methodology relating to making a cylinder head is also disclosed.
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公开(公告)号：US10052577B2
公开(公告)日：2018-08-21
申请号：US15045334
申请日：2016-02-17
Applicant: Caterpillar Inc.
Inventor： Daniel S. Brandt , Colin A. Hawkins , Viorel Petrariu , Douglas E. Davis
CPC classification number: B01D35/30 , B01D35/005
Abstract: A self-cleaning oil filter housing is disclosed. The self-cleaning oil filter housing includes a hollow elongated body. The hollow elongated body has a central axis and a transverse axis perpendicular to the central axis. The self-cleaning oil filter housing includes a first flange provided on an outer surface of the hollow elongated body. The first flange has a first through hole along a first tangential direction. The self-cleaning oil filter housing includes a second flange provided on the outer surface of the hollow elongated body. The second flange has a second through hole along a second tangential direction. An angle between the first tangential direction and the second tangential direction is pre-determined. The self-cleaning oil filter housing includes a rib portion extending between the first flange and the second flange.
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公开(公告)号：US20170232370A1
公开(公告)日：2017-08-17
申请号：US15045334
申请日：2016-02-17
Applicant: Caterpillar Inc.
Inventor： Daniel S. Brandt , Colin A. Hawkins , Viorel Petrariu , Douglas E. Davis
CPC classification number: B01D35/30 , B01D35/005
Abstract: A self-cleaning oil filter housing is disclosed. The self-cleaning oil filter housing includes a hollow elongated body. The hollow elongated body has a central axis and a transverse axis perpendicular to the central axis. The self-cleaning oil filter housing includes a first flange provided on an outer surface of the hollow elongated body. The first flange has a first through hole along a first tangential direction. The self-cleaning oil filter housing includes a second flange provided on the outer surface of the hollow elongated body. The second flange has a second through hole along a second tangential direction. An angle between the first tangential direction and the second tangential direction is pre-determined. The self-cleaning oil filter housing includes a rib portion extending between the first flange and the second flange.
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