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Apparatus, systems and methods for indexed hydraulic roller lifters

a technology of hydraulic rollers and rollers, applied in mechanical apparatuses, valve arrangements, machines/engines, etc., can solve the problems that the engine block painting is not always an option, and achieve the effect of preventing the rotational movement of the lifter body

Inactive Publication Date: 2017-11-30
HYDROGEN ENGINE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a hydraulic roller lifter, which is used in engines to improve engine performance by controlling the timing of fuel injection. The lifter includes a body with a roller and a wheel, and a tube that holds the roller in place. The tube has tabs that prevent the roller from moving. The lifter can be press-fit into the engine block. The technical effects of this invention include improving engine performance by controlling fuel injection timing and preventing movement of the lifter during operation.

Problems solved by technology

Most roller lifters are paired to accomplish this, however, to replace hydraulic flat lifters with roller lifters, pairing is not always an option in existing engine blocks.

Method used

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  • Apparatus, systems and methods for indexed hydraulic roller lifters
  • Apparatus, systems and methods for indexed hydraulic roller lifters
  • Apparatus, systems and methods for indexed hydraulic roller lifters

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Embodiment Construction

[0021]The various implementations disclosed or contemplated herein relate to indexed roller lifters used in internal combustion engines, including hydrogen-powered engines. In various implementations, the disclosed devices, systems and methods relate to indexed roller lifters for use in internal combustion engines. In certain implementations, these lifters have a housing having an indexed portion that abuts against the engine block to prevent rotation. Several aspects and implementations of these lifters are described herein with reference to the figures.

[0022]Turning to the drawings in greater detail, a typical hydraulic “flat” lifter 10 is shown in FIG. 1. These flat lifters 10 have elongate, generally cylindrical bodies having a top end 11 and a bottom end 12 having a solid round base 12. In these implementations, the base 12 is constructed and arranged to “ride” on the cam 14 and cam lobe 16 as the cam shaft rotates.

[0023]That is, the cam lobe 16 and base 12 are in mechanical co...

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Abstract

The disclosed apparatus, systems and methods relate to an indexed hydraulic roller lifter for use in internal combustion engines.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims priority to U.S. Provisional Application No. 62 / 342,017, filed May 26, 2016 and entitled “Apparatus, Systems and Methods for Improved Hydraulic Roller Lifters,” which is hereby incorporated by reference in its entirety under 35 U.S.C. §119(e).TECHNICAL FIELD[0002]The disclosure relates to an indexed hydraulic roller lifter and associated systems and methods. Namely, the disclosed embodiments relate to a hydraulic roller lifter having an indexed portion to reduce friction on the cam head and prevent rotation of the lifter.BACKGROUND[0003]Internal combustion engines (“ICE”) have been around for over 100 years. The ongoing need to improve performance in push rod engines is crucial if we are to reduce the effect of greenhouse gas emissions. Hydraulic roller lifters as opposed to hydraulic flat lifters can reduce friction between the cam and the lifter thus increasing engine efficiency. This roller lifter must be inde...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01L1/245F01L1/047F01L1/14
CPCF01L1/245F01L2001/256F01L1/146F01L1/047F01L2001/054F01L2307/00F01L2301/00F01L2305/00
Inventor INGRAM, CHARLESHOLLINGER, TED
Owner HYDROGEN ENGINE CENT