# US 2013/0340702 A1 · Valve apparatus for an internal combustion engine

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- Number: US 2013/0340702 A1
- Document ID: US20130340702A1
- Status: Published application
- Kind: A1
- Application number: 14/010,031
- Filed: 2013-08-26
- Published: 2013-12-26
- Earliest claimed: 2005-09-23
- Assignees: JP Scope, Inc.
- Applicants: JP Scope, Inc.
- Inventors: Charles E. Price
- Web page: https://patentgrep.com/patent/US20130340702A1

## CPC

- F01L 1/12: Transmitting gear between valve drive and valve (simultaneously operating two or more valves F01L1/26)
- F01L 1/047: Camshafts
- F01L 5/00: Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L7/00)
- F01L 5/02: with other than cylindrical, sleeve or part annularly shaped valves, e.g. with flat-type valves
- F01L 5/04: with cylindrical, sleeve, or part-annularly shaped valves
- F01L 7/08: with conically or frusto-conically shaped valves
- F01L 7/16: Sealing or packing arrangements specially therefor
- F01L 13/0015: {for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque}
- F02B 33/22: with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
- F02D 17/02: Cutting-out (cutting-out engines in multiple engine arrangements F02D25/04)
- F01L 1/34: characterised by the provision of means for changing the timing of the valves without changing the duration of opening {and without affecting the magnitude of the valve lift}
- F01L 2001/0537: {Double overhead camshafts [DOHC]}
- F01L 2301/00: Using particular materials
- F01L 2301/02: Using ceramic materials
- F01L 2820/031: Electromagnets
- Y02T 10/12: Improving ICE efficiencies
- Y10T 29/49231: I.C. [internal combustion] engine making
- Y10T 29/4927: Cylinder, cylinder head or engine valve sleeve making
- Y10T 29/49298: Poppet or I.C. engine valve or valve seat making
- Y10T 29/49314: with assembly or composite article making
- Y10T 29/49412: with assembly, disassembly or composite article making
- F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method includes coupling a cylinder head to a cylinder block. A valve member is then moved into a valve pocket defined by the cylinder head such that a first stem portion of the valve member engages an actuator. A first portion of the biasing member is then disposed against a second stem portion of the valve member, the second stem portion being opposite the first stem portion. An end plate is then coupled to the cylinder head such that a second portion of the biasing member engages the end plate.

## Claims

### Claim 1

An apparatus, comprising:
a cylinder head configured to be coupled to a cylinder and a gas manifold, the cylinder head having an interior surface defining a tapered valve pocket, the cylinder head defining a plurality of cylinder flow passages configured to be in fluid communication with the cylinder, the interior surface of the cylinder head including a plurality of sealing portions, each sealing portion from the plurality of sealing portions corresponding to at least one cylinder flow passage from the plurality of cylinder flow passages,
the tapered valve pocket configured to receive a valve member defining a plurality of valve flow passages, each sealing portion from the plurality of sealing portions configured to contact the valve member such that each valve flow passage from the plurality of valve flow passages is fluidically isolated from the corresponding cylinder flow passage from the plurality of cylinder flow passages.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the tapered valve pocket is configured to receive the valve member having a tapered portion corresponding to the tapered valve pocket.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the valve member is configured to be reciprocatably disposed within the tapered valve pocket.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the tapered valve pocket is configured to receive the valve member such that the valve member is movable within the valve pocket between a first position and a second position, when the valve member is in the first position, each valve flow passage from the plurality of valve flow passages is in fluid communication with the cylinder and the gas manifold, and wherein when the valve member is in the second position, each valve flow passage from the plurality of valve flow passages is fluidically isolated from the cylinder.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein a cylinder flow passage from the plurality of cylinder flow passages extends through a side wall of the cylinder head and includes an opening defined by a portion of the interior surface, the interior surface being nonplanar.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein each of a width and a thickness of the tapered valve pocket decreases linearly along a longitudinal axis of the tapered valve pocket.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the tapered valve pocket has a taper angle with respect to a longitudinal axis of the tapered valve pocket of between two and ten degrees.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the interior surface of the cylinder head includes a seat portion configured to contact a sealing portion of the valve member.

### Claim 9

An apparatus, comprising:
a cylinder head having a side wall that includes a first surface defining a portion of a tapered valve pocket and a second surface defining a portion of a combustion chamber, the side wall of the cylinder head defining a plurality of cylinder flow passages configured to fluidically couple the combustion chamber to the tapered valve pocket, the first surface including a plurality of sealing portions, each sealing portion from the plurality of sealing portions corresponding to at least one cylinder flow passage from the plurality of cylinder flow passages,
the tapered valve pocket configured to receive a valve member defining a plurality of valve flow passages, a sealing portion from the plurality of sealing portions that corresponds to a cylinder flow passage from the plurality of cylinder flow passages configured to fluidically isolate the cylinder flow passage from a corresponding valve flow passage from the plurality of valve flow passages when the valve member is in a closed position.

### Claim 10 (depends on 9)

The apparatus of claim 9, further comprising:
the valve member reciprocatably disposed within the tapered valve pocket,
the valve member configured to move between an open position and the closed position, wherein when the valve member is in the open position, each flow passage from the plurality of flow passages is in fluid communication with the combustion chamber, and wherein when the valve member is in the closed position, each flow passage from the plurality of flow passages is fluidically isolated from the combustion chamber.

### Claim 11 (depends on 9)

The apparatus of claim 9, the tapered valve pocket configured to receive the valve member having a tapered portion corresponding to the tapered valve pocket.

### Claim 12 (depends on 9)

The apparatus of claim 9, wherein the first surface of the side wall of the cylinder head is planar.

### Claim 13 (depends on 9)

The apparatus of claim 9, wherein the cylinder head is configured to be coupled to a cylinder, the second surface being angularly offset from a top surface of a piston configured to move within the cylinder.

### Claim 14 (depends on 9)

The apparatus of claim 9, wherein one of a width or a thickness of the tapered valve pocket decreases linearly along a longitudinal axis of the tapered valve pocket.

### Claim 15

An apparatus, comprising:
a cylinder head configured to be coupled to a cylinder and a gas manifold, the cylinder head defining a longitudinal axis and having an interior surface defining a valve pocket, a cross-sectional shape of the valve pocket within a plane substantially normal to the longitudinal axis being noncircular, the cylinder head defining a plurality of cylinder flow passages configured to be in fluid communication with the cylinder and with the valve pocket,
the valve pocket configured to reciprocatably receive a valve member defining a plurality of valve flow passages such that the valve pocket substantially surrounds at least a portion of the valve member, the valve pocket configured to receive the valve member such that each valve flow passage from the plurality of valve flow passages is fluidically isolated from the corresponding cylinder flow passage from the plurality of cylinder flow passages when the valve member is in a closed position within the valve pocket.

### Claim 16 (depends on 15)

The apparatus of claim 15, wherein at least a portion of the valve pocket is tapered.

### Claim 17 (depends on 15)

The apparatus of claim 15, wherein the valve pocket is configured to receive the valve member that is configured to move between the closed position and an open position, wherein when the valve member is in the open position, each flow passage from the plurality of flow passages is in fluid communication with the cylinder and the gas manifold, and wherein when the valve member is in the closed position, each flow passage from the plurality of flow passages is fluidically isolated from the cylinder.

### Claim 18 (depends on 15)

The apparatus of claim 15, wherein the interior surface of the cylinder head including a plurality of sealing portions, each sealing portion from the plurality of sealing portions corresponding to at least one cylinder flow passage from the plurality of cylinder flow passages, each sealing portion from the plurality of sealing portions configured to contact the valve member when the valve member is in the closed position.

### Claim 19 (depends on 15)

The apparatus of claim 15, wherein a portion of the interior surface is angularly offset from the longitudinal axis by between two and ten degrees.

### Claim 20 (depends on 15)

The apparatus of claim 15, wherein the gas manifold is one of an intake manifold or an exhaust manifold