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US 2009/0020366 A1Published application

Lubrication apparatus

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsTaiithi Mori, Tametoshi Mizuta, Katuhiko Arisawa, Yoshio Yamashita, Hideo Kobayashi, Kenichi Yamada, Kunihiko Hayashi

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Abstract Drawings Claims Description

Abstract

An oil pan (130) comprises an oil pan cover (131) storing oil in an internal space and an oil pan separator (132) positioned in the internal space. The oil pan separator (132) is positioned so as to divide the internal space into a first chamber (30a), which has an oil strainer (41) at its bottom, and a second chamber (30b), which is adjacent to the first chamber (30a). The oil pan separator (132) includes a slope plate (132c) for capturing return oil that flows back from a cylinder block (20a) to an oil pan (130). Part of the captured return oil flows to the second chamber (30b) via a communication hole (132f) that is provided in the slope plate (132c). The remaining captured return oil flows into the first chamber (30a). This ensures that the oil level in the second chamber (30b) is higher than that in the first chamber (30a). Therefore, when a solenoid valve (133) opens at the end of a warm-up operation, the oil in the second chamber (30b) flows into the first chamber (30a).

Claims89

Dependent claims

Claim at position 11-35. (canceled) · 2 wordsNo dependents Claim 36A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 267 words17 dependent Claim 54A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 276 words7 dependent Claim 62A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 222 words8 dependent Claim 71A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 258 words10 dependent Claim 82A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 215 words3 dependent Claim 86A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 236 words14 dependent Claim 101A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 205 words7 dependent Claim 109A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 244 words10 dependent Claim 120A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism · 198 words3 dependent

1-35. (canceled)

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
a first oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the first chamber;
and
a second oil return path capable of introducing the return oil to the second chamber,
wherein the oil pan separator has a first concave that is open toward the lubrication target mechanism to constitute the first chamber;
wherein the second chamber is formed by a space that is enclosed by the oil pan cover and an outer surface of the first concave in the oil pan separator, and positioned outside the first chamber;
and
wherein the first oil return path is provided to let the lubrication target mechanism communicate with the first concave.

8 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
a first oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the first chamber;
a second oil return path capable of introducing the return oil to the second chamber;
and
a return oil guide section, which includes a second concave that faces and communicates with the lubrication target mechanism and is open toward the lubrication target mechanism,
wherein the bottom of the return oil guide section is provided with a first communication hole for communicating with the first chamber and a second communication hole for communicating with the second chamber;
wherein the first oil return path is formed by the first communication hole;
and
wherein the second oil return path is formed by the second communication hole.

9 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
a first oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the first chamber;
and
a second oil return path capable of introducing the return oil to the second chamber,
wherein the second oil return path includes an oil return through-hole that is provided in the oil pan separator to let the first chamber communicate with the upper section of the second chamber.

5 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
a first oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the first chamber;
a second oil return path capable of introducing the return oil to the second chamber;
and
a return oil storage section, which includes a second concave that faces and communicates with the lubrication target mechanism and is open toward the lubrication target mechanism, and is capable of storing the return oil,
wherein the bottom of the return oil storage section is provided with a communication hole for communicating with the second chamber;
and
wherein the second oil return path is formed by the communication hole.

8 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
a first oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the first chamber;
and
a second oil return path capable of introducing the return oil to the second chamber,
wherein the second oil return path is provided with a second valve that is capable of opening/closing in accordance with the temperature of the return oil.

5 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
and
an oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the second chamber,
wherein the oil pan separator has a first chamber formation concave that is open toward the lubrication target mechanism to constitute the first chamber;
and
wherein the second chamber is formed by a space that is enclosed by the oil pan cover and an outer surface of the first chamber formation concave in the oil pan separator, and positioned outside the first chamber.

6 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
and
an oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the second chamber,
wherein the oil return path includes an oil return through-hole that is provided in the oil pan separator to let the first chamber communicate with the upper section of the second chamber.

4 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
and
an oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the second chamber;
and
a return oil storage section, which includes a return oil storage concave that faces and communicates with the lubrication target mechanism and is open toward the lubrication target mechanism, and is capable of storing the return oil,
wherein the bottom of the return oil storage section is provided with a communication hole for communicating with the second chamber;
and wherein the oil return path is formed by the communication hole.

7 more elements

A lubrication apparatus capable of supplying oil for lubricating a lubrication target mechanism to the lubrication target mechanism, the lubrication apparatus comprising:

an oil pan, which includes an oil pan cover capable of storing the oil in an internal space and an oil pan separator that is positioned in the internal space to divide the internal space into a first chamber and a second chamber, which are adjacent to each other;
an oil pump for supplying oil stored in the oil pan to the lubrication target mechanism;
an oil strainer that is positioned at the inner bottom of the first chamber to constitute an oil intake port for the oil pump;
an oil communication path that is provided in the oil pan separator to vary the interchange of oil between the first chamber and the second chamber in accordance with the operation of the lubrication target mechanism;
and
an oil return path capable of introducing return oil, which flows back from the lubrication target mechanism to the oil pan, to the second chamber,
wherein the oil return path is provided with a second valve that is capable of opening/closing in accordance with the temperature of the return oil.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/817,750Filed 6 Feb 2006
Priority: JP 2005-568732 Mar 2005
Published: 22 Jan 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F01M 5/001
Heating, cooling, or controlling temperature of lubricant ; Lubrication means facilitating engine starting: heating
F01M 11/0004
Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00: oilsumps
F01M 2011/0045
With different oil compartments: for controlling the oil temperature
F01M
Lubricating of machines or engines in general

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