PCV anti-freezing apparatus for two-cylinder engine

• US 8,505,519 B2
• Filed: 07/25/2011
• Issued: 08/13/2013
• Est. Priority Date: 11/25/2010
• Status: Expired due to Fees

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Park, Sung Yup
• Primary Examiner(s): McMahon, M.
• Application Number:
  US13/190,364
• Publication Number:
  US 20120132158A1
• Time in Patent Office: 750 Days
• Field of Search: 123572-574, 123/41.86, 12318421-18461
• US Class Current: 123/572
• CPC Class Codes: F01M 13/022 using engine inlet suction
• CPC Class Codes: F01M 13/04 having means for purifying air before leaving crankcase, e.g. removing oil
• CPC Class Codes: F01M 2013/0027 with a de-icing or defrosting system
• CPC Class Codes: F02M 25/06 adding lubricant vapours
• CPC Class Codes: F02M 35/10222 Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
• CPC Class Codes: F02M 35/112 for engines with cylinders all in one line
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A PCV anti-freezing apparatus for two-cylinder engine may include a PCV (Positive Crankcase Ventilation) nipple connected to an intake manifold of a two-cylinder engine, and an oil separator formed within the PCV nipple.

Claims

1. A Positive Crankcase Ventilation (PCV) anti-freezing apparatus for a two-cylinder engine comprising:

a PCV nipple connected to an intake manifold of the two-cylinder engine; and

an oil separator formed within the PCV nipple;

wherein the oil separator comprises a perpendicular groove extending perpendicular to a flow direction of blow-by gas flowing through the PCV nipple; and

wherein the oil separator further comprises an oil groove which is connected to the perpendicular groove for guiding oil condensed at the perpendicular groove to the intake manifold.

2. The PCV anti-freezing apparatus of claim 1, wherein the PCV nipple is disposed between two runners of the intake manifold.

3. The PCV anti-freezing apparatus of claim 2, wherein the PCV nipple is perpendicularly disposed to the runner of the intake manifold.

4. A Positive Crankcase Ventilation (PCV) anti-freezing apparatus comprising an oil separator;

wherein the PCV anti-freezing apparatus further comprises a PCV nipple connected to an intake manifold and wherein the oil separator is formed to the PCV nipple;

wherein the oil separator comprises a perpendicular groove extending perpendicular to flow direction of blow-by gas flowing through the PCV nipple; and

wherein the oil separator further comprises an oil groove connected to the perpendicular groove for guiding oil condensed at the perpendicular groove to the intake manifold.

5. The PCV anti-freezing apparatus of claim 4, wherein the PCV nipple is disposed between runners of the intake manifold.

6. The PCV anti-freezing apparatus of claim 5, wherein the PCV nipple is perpendicularly disposed to the runner of the intake manifold.